<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:20416064-9837-4b70-8ac6-d67c1268acde,g:0907a2b7-698f-47a6-9a06-406e9987607f-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.expensify.com/role/Cover" xlink:type="simple" xlink:href="exfy-20220930.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/Cover" xlink:type="extended" id="i1127cefde2554b5ba9d3dc9ac062c5bb_Cover">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_88bef3c9-096b-454e-9775-745dad7350a9" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentType_88bef3c9-096b-454e-9775-745dad7350a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_247d3cab-fa49-47f8-863f-08fbcf0f2f2a" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentQuarterlyReport_247d3cab-fa49-47f8-863f-08fbcf0f2f2a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_8dca41ec-baf0-4cc3-a2e0-694767ee9f7a" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentPeriodEndDate_8dca41ec-baf0-4cc3-a2e0-694767ee9f7a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_3a4ecbf0-230e-41b6-ab52-19279a3cd9ee" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentTransitionReport_3a4ecbf0-230e-41b6-ab52-19279a3cd9ee" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_86f910ba-b1f6-4c89-b19f-ef8e7bbc138a" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityFileNumber_86f910ba-b1f6-4c89-b19f-ef8e7bbc138a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_eaabda70-df1c-41d1-9f7c-740cbbba9f19" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityRegistrantName_eaabda70-df1c-41d1-9f7c-740cbbba9f19" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_a897611b-dc26-4440-9e9b-3b255bf09697" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityIncorporationStateCountryCode_a897611b-dc26-4440-9e9b-3b255bf09697" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_599e74fa-3c18-4074-aad5-e20f1ab5c7d2" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityTaxIdentificationNumber_599e74fa-3c18-4074-aad5-e20f1ab5c7d2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_505d54f7-dd57-4d76-a44e-b1c74c39cddd" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityAddressAddressLine1_505d54f7-dd57-4d76-a44e-b1c74c39cddd" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_d006418f-fcb9-48f0-b4b6-92bb38f24024" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityAddressCityOrTown_d006418f-fcb9-48f0-b4b6-92bb38f24024" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_ae1e87f6-c343-4c90-922b-072d0e76b242" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityAddressStateOrProvince_ae1e87f6-c343-4c90-922b-072d0e76b242" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_dba6daba-8651-4ad4-9c82-39ea6fe15119" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityAddressPostalZipCode_dba6daba-8651-4ad4-9c82-39ea6fe15119" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_d5e3382c-b946-4fda-a063-952ca06487cd" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_CityAreaCode_d5e3382c-b946-4fda-a063-952ca06487cd" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_f116cf4b-5705-4875-a479-e9e3c6c9194f" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_LocalPhoneNumber_f116cf4b-5705-4875-a479-e9e3c6c9194f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_1f9ce916-9494-4ce0-a287-880e38079e0c" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_Security12bTitle_1f9ce916-9494-4ce0-a287-880e38079e0c" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_f2daa487-19f7-4497-85b3-f933d1a7c48b" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_TradingSymbol_f2daa487-19f7-4497-85b3-f933d1a7c48b" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_829db842-1cf8-4ae1-83a6-ed6017e578d0" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_SecurityExchangeName_829db842-1cf8-4ae1-83a6-ed6017e578d0" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_5fb84bf5-4934-465b-94a2-aeba697a66dc" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityCurrentReportingStatus_5fb84bf5-4934-465b-94a2-aeba697a66dc" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_5d41a55d-155f-4fa1-99ff-1389f8e06769" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityInteractiveDataCurrent_5d41a55d-155f-4fa1-99ff-1389f8e06769" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_06558bc8-672a-4805-8456-4341d39574ac" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityFilerCategory_06558bc8-672a-4805-8456-4341d39574ac" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_686d07a7-4b7c-4d8b-86ac-4b4412fb2add" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntitySmallBusiness_686d07a7-4b7c-4d8b-86ac-4b4412fb2add" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_704aec5f-5956-43e7-bfeb-a233953f0a46" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityEmergingGrowthCompany_704aec5f-5956-43e7-bfeb-a233953f0a46" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_792123be-151c-4aec-88fb-8dedd5b09116" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityExTransitionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityExTransitionPeriod_792123be-151c-4aec-88fb-8dedd5b09116" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_a6904df9-ac67-45ee-a924-0200f6eda1ce" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityShellCompany_a6904df9-ac67-45ee-a924-0200f6eda1ce" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_642de14d-17eb-4496-bea6-a317d0adb71f" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_642de14d-17eb-4496-bea6-a317d0adb71f" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_a06ed703-1163-4476-9b3b-af0386521e4a" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_EntityCentralIndexKey_a06ed703-1163-4476-9b3b-af0386521e4a" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_657ebc5b-1d6c-47c7-b4c7-09dc8dbe1436" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_CurrentFiscalYearEndDate_657ebc5b-1d6c-47c7-b4c7-09dc8dbe1436" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_b1936a47-23d7-47be-9444-4bc12547d106" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentFiscalYearFocus_b1936a47-23d7-47be-9444-4bc12547d106" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_fd1e972a-59ca-4210-ae6e-a554db1da1c6" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentFiscalPeriodFocus_fd1e972a-59ca-4210-ae6e-a554db1da1c6" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_a6d09830-1ed0-49ab-ba12-d0eacc030b87" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_AmendmentFlag_a6d09830-1ed0-49ab-ba12-d0eacc030b87" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_2d8e1fbe-fd5e-4445-a837-f2f107b6b13e" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_fe107c9e-b2d0-48e6-af6b-6a9dd0224dd1" xlink:to="loc_dei_DocumentInformationTable_2d8e1fbe-fd5e-4445-a837-f2f107b6b13e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_211c8f3e-4d1f-4ef9-a185-48113a7ed4a3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_2d8e1fbe-fd5e-4445-a837-f2f107b6b13e" xlink:to="loc_us-gaap_StatementClassOfStockAxis_211c8f3e-4d1f-4ef9-a185-48113a7ed4a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_211c8f3e-4d1f-4ef9-a185-48113a7ed4a3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_211c8f3e-4d1f-4ef9-a185-48113a7ed4a3" xlink:to="loc_us-gaap_ClassOfStockDomain_211c8f3e-4d1f-4ef9-a185-48113a7ed4a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_15616f28-49ee-4655-9e42-84fe22192aa0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_211c8f3e-4d1f-4ef9-a185-48113a7ed4a3" xlink:to="loc_us-gaap_ClassOfStockDomain_15616f28-49ee-4655-9e42-84fe22192aa0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_5a328428-1ee0-4db3-8c3c-e3406f668868" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_15616f28-49ee-4655-9e42-84fe22192aa0" xlink:to="loc_us-gaap_CommonClassAMember_5a328428-1ee0-4db3-8c3c-e3406f668868" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT10Member_0235db01-2a7a-443b-8dca-b6562e508be4" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT10Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_15616f28-49ee-4655-9e42-84fe22192aa0" xlink:to="loc_exfy_CommonStockLT10Member_0235db01-2a7a-443b-8dca-b6562e508be4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT50Member_bece8c9b-4a72-4b4a-a368-c21dc17f3b40" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_15616f28-49ee-4655-9e42-84fe22192aa0" xlink:to="loc_exfy_CommonStockLT50Member_bece8c9b-4a72-4b4a-a368-c21dc17f3b40" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/CondensedConsolidatedBalanceSheetsParentheticals" xlink:type="simple" xlink:href="exfy-20220930.xsd#CondensedConsolidatedBalanceSheetsParentheticals"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/CondensedConsolidatedBalanceSheetsParentheticals" xlink:type="extended" id="idf44fb8cd8e2491cae5830554978d3c8_CondensedConsolidatedBalanceSheetsParentheticals">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_5a18f754-3625-496b-9c76-bd6dbb5efe23" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_5a18f754-3625-496b-9c76-bd6dbb5efe23" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_8bcac570-9997-4493-9651-1ebbf312a699" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_8bcac570-9997-4493-9651-1ebbf312a699" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_6cc45d59-e49d-45b4-b863-7bca8fde45bd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_CommonStockSharesIssued_6cc45d59-e49d-45b4-b863-7bca8fde45bd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_15440cad-36a2-4cc6-b904-3380550612be" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_15440cad-36a2-4cc6-b904-3380550612be" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_65075616-c411-4291-b071-c60e54d891a3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_65075616-c411-4291-b071-c60e54d891a3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_e250b6d4-d5ca-47e1-9238-f151a62332e1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_e250b6d4-d5ca-47e1-9238-f151a62332e1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ae0a5b8a-4bfc-4fd6-80a1-78c1af4ad719" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_4243eae5-e45c-4aef-ad00-5d9c4cd39772" xlink:to="loc_us-gaap_StatementTable_ae0a5b8a-4bfc-4fd6-80a1-78c1af4ad719" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_12a567ba-7d8c-4640-882e-b15827cd25c1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ae0a5b8a-4bfc-4fd6-80a1-78c1af4ad719" xlink:to="loc_us-gaap_StatementClassOfStockAxis_12a567ba-7d8c-4640-882e-b15827cd25c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_12a567ba-7d8c-4640-882e-b15827cd25c1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_12a567ba-7d8c-4640-882e-b15827cd25c1" xlink:to="loc_us-gaap_ClassOfStockDomain_12a567ba-7d8c-4640-882e-b15827cd25c1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_897a7715-48de-4ec6-ba01-68e1d3619a3a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_12a567ba-7d8c-4640-882e-b15827cd25c1" xlink:to="loc_us-gaap_ClassOfStockDomain_897a7715-48de-4ec6-ba01-68e1d3619a3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_aa288e31-7a7f-41f0-8962-d54bff32c107" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_897a7715-48de-4ec6-ba01-68e1d3619a3a" xlink:to="loc_us-gaap_CommonClassAMember_aa288e31-7a7f-41f0-8962-d54bff32c107" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT10Member_b55bc108-58a1-4ca8-a521-3b0f7765038b" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT10Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_897a7715-48de-4ec6-ba01-68e1d3619a3a" xlink:to="loc_exfy_CommonStockLT10Member_b55bc108-58a1-4ca8-a521-3b0f7765038b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT50Member_2c06b498-e3b9-49ba-8ffa-ec6ea74d1d4d" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_897a7715-48de-4ec6-ba01-68e1d3619a3a" xlink:to="loc_exfy_CommonStockLT50Member_2c06b498-e3b9-49ba-8ffa-ec6ea74d1d4d" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/CondensedConsolidatedStatementsofConvertiblePreferredStockandStockholdersEquityDeficitUnaudited" xlink:type="simple" xlink:href="exfy-20220930.xsd#CondensedConsolidatedStatementsofConvertiblePreferredStockandStockholdersEquityDeficitUnaudited"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/CondensedConsolidatedStatementsofConvertiblePreferredStockandStockholdersEquityDeficitUnaudited" xlink:type="extended" id="i747c624264b5411dbc4e19848cae1a14_CondensedConsolidatedStatementsofConvertiblePreferredStockandStockholdersEquityDeficitUnaudited">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_ceaccb1d-0c3c-4516-998b-c88eac809213" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_19d880ca-ec0e-44ec-a3e4-4887acda8c0c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ceaccb1d-0c3c-4516-998b-c88eac809213" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_19d880ca-ec0e-44ec-a3e4-4887acda8c0c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_c565f447-7d9a-4617-b1e3-1dd9d8b74a7b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_19d880ca-ec0e-44ec-a3e4-4887acda8c0c" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_c565f447-7d9a-4617-b1e3-1dd9d8b74a7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_d91939ef-a0b1-4ad2-a1a3-de9d7ae40471" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_19d880ca-ec0e-44ec-a3e4-4887acda8c0c" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_d91939ef-a0b1-4ad2-a1a3-de9d7ae40471" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_8b9e0a69-3195-4d71-a154-9bea2c79cbc1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_026372f4-5fe5-4fe0-bdba-80104b6cfbb4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ceaccb1d-0c3c-4516-998b-c88eac809213" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_e5acff63-61c5-4b7c-a2d3-7bebc67f94e9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockholdersEquity_e5acff63-61c5-4b7c-a2d3-7bebc67f94e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_f8760cc1-4c18-47a1-a548-b81d751ffe08" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_f8760cc1-4c18-47a1-a548-b81d751ffe08" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_19c3e942-d041-401e-9930-be53f1aa6e8b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_19c3e942-d041-401e-9930-be53f1aa6e8b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7988f89f-97af-4f11-8ad0-8702fac6ac1e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7988f89f-97af-4f11-8ad0-8702fac6ac1e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_AdjustmentsToAdditionalPaidInCapitalValueVestingOfEarlyExercisedStockOptions_86942b2b-304a-485f-ab78-45f976f5a002" xlink:href="exfy-20220930.xsd#exfy_AdjustmentsToAdditionalPaidInCapitalValueVestingOfEarlyExercisedStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_exfy_AdjustmentsToAdditionalPaidInCapitalValueVestingOfEarlyExercisedStockOptions_86942b2b-304a-485f-ab78-45f976f5a002" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_fbcef760-320c-40c3-a0ca-4d032601d42d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_fbcef760-320c-40c3-a0ca-4d032601d42d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_2162353b-7cef-4817-af8f-56a12ccbc8d3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_2162353b-7cef-4817-af8f-56a12ccbc8d3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_4d0369d4-3471-4b29-b011-d19ff2099b4c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_4d0369d4-3471-4b29-b011-d19ff2099b4c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_8a159115-03cf-4221-9746-a09101d22744" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_8a159115-03cf-4221-9746-a09101d22744" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan_db0518d6-6ac0-422a-86bb-857b3c09479a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan_db0518d6-6ac0-422a-86bb-857b3c09479a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan_dd5f7918-8ace-400c-9835-2fc044f68b21" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan_dd5f7918-8ace-400c-9835-2fc044f68b21" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_StockIssuedDuringPeriodValueRestrictedStockAwardUnitsVesting_96369911-a114-4de0-9dde-85a1910d726c" xlink:href="exfy-20220930.xsd#exfy_StockIssuedDuringPeriodValueRestrictedStockAwardUnitsVesting"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_exfy_StockIssuedDuringPeriodValueRestrictedStockAwardUnitsVesting_96369911-a114-4de0-9dde-85a1910d726c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_StockIssuedDuringPeriodSharesRestrictedStockAwardUnitsVesting_9accb71e-d01c-4097-9cd9-c1f9e3dbe61a" xlink:href="exfy-20220930.xsd#exfy_StockIssuedDuringPeriodSharesRestrictedStockAwardUnitsVesting"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_exfy_StockIssuedDuringPeriodSharesRestrictedStockAwardUnitsVesting_9accb71e-d01c-4097-9cd9-c1f9e3dbe61a" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_70e5f249-793c-4d4f-86a0-b884b7cdc4f1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_70e5f249-793c-4d4f-86a0-b884b7cdc4f1" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_2fac8106-805a-4bde-80ef-e15809dde887" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_2fac8106-805a-4bde-80ef-e15809dde887" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_f5683fd9-3365-404f-8fab-08ac5bf4e464" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_f5683fd9-3365-404f-8fab-08ac5bf4e464" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5b26b534-a4de-4358-9f55-48531ca953d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_460b9100-34f6-4330-bc36-c45a8a4801bc" xlink:to="loc_us-gaap_NetIncomeLoss_5b26b534-a4de-4358-9f55-48531ca953d5" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_55e7b39d-c144-4e56-8b43-cda5ae46b3d6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_1cd5e972-7290-4779-bc2f-36259932dff5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_b60179fa-cba4-45be-922d-220e7bbc3383" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_ceaccb1d-0c3c-4516-998b-c88eac809213" xlink:to="loc_us-gaap_StatementTable_b60179fa-cba4-45be-922d-220e7bbc3383" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_aac5ce40-ad60-4ccb-a64b-7451a167d6c5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_b60179fa-cba4-45be-922d-220e7bbc3383" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_aac5ce40-ad60-4ccb-a64b-7451a167d6c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_aac5ce40-ad60-4ccb-a64b-7451a167d6c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_aac5ce40-ad60-4ccb-a64b-7451a167d6c5" xlink:to="loc_us-gaap_EquityComponentDomain_aac5ce40-ad60-4ccb-a64b-7451a167d6c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_aac5ce40-ad60-4ccb-a64b-7451a167d6c5" xlink:to="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_b02f8e84-7fd3-4a5b-abb3-01f5224a17b4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:to="loc_us-gaap_PreferredStockMember_b02f8e84-7fd3-4a5b-abb3-01f5224a17b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_2a5ae2e8-9481-4db7-80e8-9ae06b1c3d62" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:to="loc_us-gaap_CommonStockMember_2a5ae2e8-9481-4db7-80e8-9ae06b1c3d62" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_f0ab35b8-b0ae-4a26-bdfe-cf0c4562f1a2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_f0ab35b8-b0ae-4a26-bdfe-cf0c4562f1a2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesFromStockholderMember_3556289d-662b-43da-8293-d069c96645c9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ReceivablesFromStockholderMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:to="loc_us-gaap_ReceivablesFromStockholderMember_3556289d-662b-43da-8293-d069c96645c9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_768c5fe3-887b-48d9-89a9-2bc71cd6d42b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_1feab6dc-78b7-4f3e-aa29-0894b157937d" xlink:to="loc_us-gaap_RetainedEarningsMember_768c5fe3-887b-48d9-89a9-2bc71cd6d42b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2f23f0a0-f5e9-4f23-959a-41a453e513f9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_b60179fa-cba4-45be-922d-220e7bbc3383" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2f23f0a0-f5e9-4f23-959a-41a453e513f9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_2f23f0a0-f5e9-4f23-959a-41a453e513f9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2f23f0a0-f5e9-4f23-959a-41a453e513f9" xlink:to="loc_us-gaap_ClassOfStockDomain_2f23f0a0-f5e9-4f23-959a-41a453e513f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_1175ce0f-b921-40df-b9a4-0e383e32eeec" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2f23f0a0-f5e9-4f23-959a-41a453e513f9" xlink:to="loc_us-gaap_ClassOfStockDomain_1175ce0f-b921-40df-b9a4-0e383e32eeec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_71d67971-b9b0-401a-9c99-6ea03a8a989e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_1175ce0f-b921-40df-b9a4-0e383e32eeec" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_71d67971-b9b0-401a-9c99-6ea03a8a989e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSTotalRevenuebyGeographicAreaDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSTotalRevenuebyGeographicAreaDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSTotalRevenuebyGeographicAreaDetails" xlink:type="extended" id="i568320c52c5c414ebb39c5a59f4870d4_REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSTotalRevenuebyGeographicAreaDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_fc53fab5-215d-4e8c-981e-2c0ac6fa719b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_b12977d8-14a9-4b36-9e05-781ee63eb4cb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_fc53fab5-215d-4e8c-981e-2c0ac6fa719b" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_b12977d8-14a9-4b36-9e05-781ee63eb4cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_8eff56e9-855d-4860-bc57-d119efeb1ffa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_fc53fab5-215d-4e8c-981e-2c0ac6fa719b" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_8eff56e9-855d-4860-bc57-d119efeb1ffa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_4e181d81-2955-4ced-9c7d-ef5f70856f6e" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_8eff56e9-855d-4860-bc57-d119efeb1ffa" xlink:to="loc_srt_StatementGeographicalAxis_4e181d81-2955-4ced-9c7d-ef5f70856f6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_4e181d81-2955-4ced-9c7d-ef5f70856f6e_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_4e181d81-2955-4ced-9c7d-ef5f70856f6e" xlink:to="loc_srt_SegmentGeographicalDomain_4e181d81-2955-4ced-9c7d-ef5f70856f6e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_096f8367-736e-4919-9e55-67b614cb27d1" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_4e181d81-2955-4ced-9c7d-ef5f70856f6e" xlink:to="loc_srt_SegmentGeographicalDomain_096f8367-736e-4919-9e55-67b614cb27d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_3bcbc155-8bd0-4c97-8997-fc3e6815028b" xlink:href="https://xbrl.sec.gov/country/2022/country-2022.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_096f8367-736e-4919-9e55-67b614cb27d1" xlink:to="loc_country_US_3bcbc155-8bd0-4c97-8997-fc3e6815028b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_681badb6-032d-4920-8839-d1786fbbecbf" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NonUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_096f8367-736e-4919-9e55-67b614cb27d1" xlink:to="loc_us-gaap_NonUsMember_681badb6-032d-4920-8839-d1786fbbecbf" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSNarrativesDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSNarrativesDetails" xlink:type="extended" id="ifabd9e2d73314a94b52e6c8f26e5149b_REVENUEANDCERTAINSTATEMENTSOFOPERATIONSCOMPONENTSNarrativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_eec1eec1-42d9-46e2-8c28-29df9e166b6a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_RevenueFromContractWithCustomerCashRewardsToCustomer_35d4c6ef-0d4a-4200-a729-5cb3236537ef" xlink:href="exfy-20220930.xsd#exfy_RevenueFromContractWithCustomerCashRewardsToCustomer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_eec1eec1-42d9-46e2-8c28-29df9e166b6a" xlink:to="loc_exfy_RevenueFromContractWithCustomerCashRewardsToCustomer_35d4c6ef-0d4a-4200-a729-5cb3236537ef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ConsiderationFromVendorsNet_d501b349-5ff9-4e6f-9ddc-8ec8b11b4eea" xlink:href="exfy-20220930.xsd#exfy_ConsiderationFromVendorsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_eec1eec1-42d9-46e2-8c28-29df9e166b6a" xlink:to="loc_exfy_ConsiderationFromVendorsNet_d501b349-5ff9-4e6f-9ddc-8ec8b11b4eea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_e5d82d61-1c95-4f5b-a629-eebaa687c39d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_eec1eec1-42d9-46e2-8c28-29df9e166b6a" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_e5d82d61-1c95-4f5b-a629-eebaa687c39d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_54a83ba7-cb3c-48c9-af6b-542b24d6ef40" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_e5d82d61-1c95-4f5b-a629-eebaa687c39d" xlink:to="loc_srt_ProductOrServiceAxis_54a83ba7-cb3c-48c9-af6b-542b24d6ef40" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_54a83ba7-cb3c-48c9-af6b-542b24d6ef40_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_54a83ba7-cb3c-48c9-af6b-542b24d6ef40" xlink:to="loc_srt_ProductsAndServicesDomain_54a83ba7-cb3c-48c9-af6b-542b24d6ef40_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_1e0b589a-9645-4c44-a9c7-a758e3da04fe" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_54a83ba7-cb3c-48c9-af6b-542b24d6ef40" xlink:to="loc_srt_ProductsAndServicesDomain_1e0b589a-9645-4c44-a9c7-a758e3da04fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CashbackRewardsMember_bb1d5a1e-9b6b-43af-b11d-8852de2da5f1" xlink:href="exfy-20220930.xsd#exfy_CashbackRewardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_1e0b589a-9645-4c44-a9c7-a758e3da04fe" xlink:to="loc_exfy_CashbackRewardsMember_bb1d5a1e-9b6b-43af-b11d-8852de2da5f1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/CERTAINBALANCESHEETCOMPONENTSOthercurrentassetsDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#CERTAINBALANCESHEETCOMPONENTSOthercurrentassetsDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/CERTAINBALANCESHEETCOMPONENTSOthercurrentassetsDetails" xlink:type="extended" id="i4f6275cea92048d6a08f68073deac4e0_CERTAINBALANCESHEETCOMPONENTSOthercurrentassetsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:href="exfy-20220930.xsd#exfy_ScheduleOfOtherCurrentAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_RestrictedCashHeldForRelatedPartyCurrent_f9bad911-c2f4-4c06-927b-c29812f13d6e" xlink:href="exfy-20220930.xsd#exfy_RestrictedCashHeldForRelatedPartyCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_exfy_RestrictedCashHeldForRelatedPartyCurrent_f9bad911-c2f4-4c06-927b-c29812f13d6e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CardCollateralForFundsHeldForCustomersCurrent_0140f373-8be5-406d-a1cd-d4761a2cbdd1" xlink:href="exfy-20220930.xsd#exfy_CardCollateralForFundsHeldForCustomersCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_exfy_CardCollateralForFundsHeldForCustomersCurrent_0140f373-8be5-406d-a1cd-d4761a2cbdd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CashInTransitForFundsHeldForCustomersCurrent_57d7ea81-3208-42e2-bb8f-c5bb2019f2cc" xlink:href="exfy-20220930.xsd#exfy_CashInTransitForFundsHeldForCustomersCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_exfy_CashInTransitForFundsHeldForCustomersCurrent_57d7ea81-3208-42e2-bb8f-c5bb2019f2cc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_71beb80a-4286-4983-ae14-93315531efc7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_71beb80a-4286-4983-ae14-93315531efc7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_b82199de-06f1-425f-9f21-5deb8eec23ea" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_us-gaap_IncomeTaxesReceivable_b82199de-06f1-425f-9f21-5deb8eec23ea" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_EmployeeStockPurchasePlanEscrowAndOtherRestrictedCash_ad65ce06-8fb0-4a34-8f25-58ec34dc8b8d" xlink:href="exfy-20220930.xsd#exfy_EmployeeStockPurchasePlanEscrowAndOtherRestrictedCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_exfy_EmployeeStockPurchasePlanEscrowAndOtherRestrictedCash_ad65ce06-8fb0-4a34-8f25-58ec34dc8b8d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousCurrent_08adad86-3dbe-49f4-9af5-46335b9876d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsMiscellaneousCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousCurrent_08adad86-3dbe-49f4-9af5-46335b9876d5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_95a99a89-fbae-44c9-b117-74fc62c184de" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_us-gaap_OtherAssetsCurrent_95a99a89-fbae-44c9-b117-74fc62c184de" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ScheduleOfOtherCurrentAssetsTable_a87349be-40de-4e96-b997-f8a4f7574288" xlink:href="exfy-20220930.xsd#exfy_ScheduleOfOtherCurrentAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsLineItems_05ce8d53-174f-4cc1-9a81-2dae13ebb128" xlink:to="loc_exfy_ScheduleOfOtherCurrentAssetsTable_a87349be-40de-4e96-b997-f8a4f7574288" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_f6af3718-ed2c-4eff-a1b7-3e41414e3492" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsTable_a87349be-40de-4e96-b997-f8a4f7574288" xlink:to="loc_srt_ConsolidatedEntitiesAxis_f6af3718-ed2c-4eff-a1b7-3e41414e3492" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_f6af3718-ed2c-4eff-a1b7-3e41414e3492_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_f6af3718-ed2c-4eff-a1b7-3e41414e3492" xlink:to="loc_srt_ConsolidatedEntitiesDomain_f6af3718-ed2c-4eff-a1b7-3e41414e3492_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_7506d015-6d11-4ef0-b30b-349be4bed801" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_f6af3718-ed2c-4eff-a1b7-3e41414e3492" xlink:to="loc_srt_ConsolidatedEntitiesDomain_7506d015-6d11-4ef0-b30b-349be4bed801" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SubsidiariesMember_61662c71-35f0-4341-ba8c-e7ba7876f6e4" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_SubsidiariesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_7506d015-6d11-4ef0-b30b-349be4bed801" xlink:to="loc_srt_SubsidiariesMember_61662c71-35f0-4341-ba8c-e7ba7876f6e4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_866698d0-e681-4f0b-9abb-244bc1262bb2" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsTable_a87349be-40de-4e96-b997-f8a4f7574288" xlink:to="loc_srt_CounterpartyNameAxis_866698d0-e681-4f0b-9abb-244bc1262bb2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_866698d0-e681-4f0b-9abb-244bc1262bb2_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_866698d0-e681-4f0b-9abb-244bc1262bb2" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_866698d0-e681-4f0b-9abb-244bc1262bb2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_9eba5784-30e1-479b-8479-ae49ec490cb2" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_866698d0-e681-4f0b-9abb-244bc1262bb2" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_9eba5784-30e1-479b-8479-ae49ec490cb2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ExpensifyOrgMember_75881805-4428-4cb1-9a62-44ff4cb3db9b" xlink:href="exfy-20220930.xsd#exfy_ExpensifyOrgMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_9eba5784-30e1-479b-8479-ae49ec490cb2" xlink:to="loc_exfy_ExpensifyOrgMember_75881805-4428-4cb1-9a62-44ff4cb3db9b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ExpensifyPaymentLLCMember_6507808d-2b1b-4dbf-9a08-0ac3d936ceaa" xlink:href="exfy-20220930.xsd#exfy_ExpensifyPaymentLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_9eba5784-30e1-479b-8479-ae49ec490cb2" xlink:to="loc_exfy_ExpensifyPaymentLLCMember_6507808d-2b1b-4dbf-9a08-0ac3d936ceaa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_5ee4204a-af8a-4eec-95f5-39a5eafca4ee" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_exfy_ScheduleOfOtherCurrentAssetsTable_a87349be-40de-4e96-b997-f8a4f7574288" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_5ee4204a-af8a-4eec-95f5-39a5eafca4ee" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_5ee4204a-af8a-4eec-95f5-39a5eafca4ee_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_5ee4204a-af8a-4eec-95f5-39a5eafca4ee" xlink:to="loc_us-gaap_RelatedPartyDomain_5ee4204a-af8a-4eec-95f5-39a5eafca4ee_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_cd151a28-7100-489b-b19e-8f2094d5a7a9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_5ee4204a-af8a-4eec-95f5-39a5eafca4ee" xlink:to="loc_us-gaap_RelatedPartyDomain_cd151a28-7100-489b-b19e-8f2094d5a7a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AffiliatedEntityMember_2218a5a6-6070-4135-b4cb-52804918ad3f" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_AffiliatedEntityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_cd151a28-7100-489b-b19e-8f2094d5a7a9" xlink:to="loc_srt_AffiliatedEntityMember_2218a5a6-6070-4135-b4cb-52804918ad3f" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/CERTAINBALANCESHEETCOMPONENTSPropertyandequipmentnetDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#CERTAINBALANCESHEETCOMPONENTSPropertyandequipmentnetDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/CERTAINBALANCESHEETCOMPONENTSPropertyandequipmentnetDetails" xlink:type="extended" id="i2b0888150d8e48fd83e88e123902e0e5_CERTAINBALANCESHEETCOMPONENTSPropertyandequipmentnetDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_600fbd9a-ccb0-459c-8796-cbaf42f198e0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_f05e6b11-9d88-46eb-b3bb-f2cded09c0f4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_600fbd9a-ccb0-459c-8796-cbaf42f198e0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_f05e6b11-9d88-46eb-b3bb-f2cded09c0f4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_021da316-e020-4503-a9bf-88bffceac571" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_600fbd9a-ccb0-459c-8796-cbaf42f198e0" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_021da316-e020-4503-a9bf-88bffceac571" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_1dc3b81b-d608-4528-af97-1da882ee663e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_600fbd9a-ccb0-459c-8796-cbaf42f198e0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_1dc3b81b-d608-4528-af97-1da882ee663e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_56aff93a-a936-434c-9b48-c119b0b2b50e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_600fbd9a-ccb0-459c-8796-cbaf42f198e0" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_56aff93a-a936-434c-9b48-c119b0b2b50e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb0ca291-9837-4832-905a-dd1c9e4bde43" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_56aff93a-a936-434c-9b48-c119b0b2b50e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb0ca291-9837-4832-905a-dd1c9e4bde43" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_cb0ca291-9837-4832-905a-dd1c9e4bde43_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb0ca291-9837-4832-905a-dd1c9e4bde43" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_cb0ca291-9837-4832-905a-dd1c9e4bde43_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb0ca291-9837-4832-905a-dd1c9e4bde43" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_bcfd86f3-6486-4d2b-a698-13a3abe8ab08" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:to="loc_us-gaap_ComputerEquipmentMember_bcfd86f3-6486-4d2b-a698-13a3abe8ab08" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_339625d4-8b17-4c3d-9869-53be0f209025" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_339625d4-8b17-4c3d-9869-53be0f209025" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_f565c132-3bca-42a4-baf2-8cbac3a2423e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_f565c132-3bca-42a4-baf2-8cbac3a2423e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_f7480888-1970-495d-bd31-68e9b4b57938" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:to="loc_us-gaap_BuildingMember_f7480888-1970-495d-bd31-68e9b4b57938" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_80a2d1c1-342b-41e3-ba03-69638635b22f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:to="loc_us-gaap_LandMember_80a2d1c1-342b-41e3-ba03-69638635b22f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_cf383c4d-7753-4d16-a2e7-f5e67e15a561" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_8be0ae3e-4fdf-4973-9473-0d643d88896b" xlink:to="loc_us-gaap_ConstructionInProgressMember_cf383c4d-7753-4d16-a2e7-f5e67e15a561" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIESAmortizingTermMortgageDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#COMMITMENTSANDCONTINGENCIESAmortizingTermMortgageDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIESAmortizingTermMortgageDetails" xlink:type="extended" id="ifcc20b74858041ca882cb4af664d4764_COMMITMENTSANDCONTINGENCIESAmortizingTermMortgageDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_135dc7df-8a6d-44ae-b09b-aafef47266a7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_135dc7df-8a6d-44ae-b09b-aafef47266a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_debec9cd-fea9-4a80-8798-2f5f05b11170" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:to="loc_us-gaap_DebtInstrumentTerm_debec9cd-fea9-4a80-8798-2f5f05b11170" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_abb34c50-639b-40ee-ac68-a5ac787b2adc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_abb34c50-639b-40ee-ac68-a5ac787b2adc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_605f6bbe-f526-4036-8aa6-3e46cfffaab8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_605f6bbe-f526-4036-8aa6-3e46cfffaab8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_6d88cca0-6099-48d8-8ac0-9d6a692b9a99" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_6d88cca0-6099-48d8-8ac0-9d6a692b9a99" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_a8cfc648-a737-4be6-997b-25921c270533" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfCapitalizationLongtermDebtTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_10ed39bd-18c9-479e-a006-7edb96fd3de7" xlink:to="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_a8cfc648-a737-4be6-997b-25921c270533" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_cb5fd347-dc3b-4d0b-b3d9-184b2e04e9b2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_a8cfc648-a737-4be6-997b-25921c270533" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_cb5fd347-dc3b-4d0b-b3d9-184b2e04e9b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_cb5fd347-dc3b-4d0b-b3d9-184b2e04e9b2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_cb5fd347-dc3b-4d0b-b3d9-184b2e04e9b2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_cb5fd347-dc3b-4d0b-b3d9-184b2e04e9b2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f5bdcb24-dd21-4099-9e67-739ee2f52e10" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_cb5fd347-dc3b-4d0b-b3d9-184b2e04e9b2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f5bdcb24-dd21-4099-9e67-739ee2f52e10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesMember_4bf6c7f2-fcff-4c3e-913b-9821dd9af7a4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MortgagesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_f5bdcb24-dd21-4099-9e67-739ee2f52e10" xlink:to="loc_us-gaap_MortgagesMember_4bf6c7f2-fcff-4c3e-913b-9821dd9af7a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_79147f53-9dc9-492f-98df-3b9457133ece" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_a8cfc648-a737-4be6-997b-25921c270533" xlink:to="loc_us-gaap_VariableRateAxis_79147f53-9dc9-492f-98df-3b9457133ece" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_79147f53-9dc9-492f-98df-3b9457133ece_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_79147f53-9dc9-492f-98df-3b9457133ece" xlink:to="loc_us-gaap_VariableRateDomain_79147f53-9dc9-492f-98df-3b9457133ece_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_b55cb927-0852-4772-823a-0ec58a8d8db9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_79147f53-9dc9-492f-98df-3b9457133ece" xlink:to="loc_us-gaap_VariableRateDomain_b55cb927-0852-4772-823a-0ec58a8d8db9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrimeRateMember_af735039-2458-485f-9f30-18d05e6172d3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PrimeRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_b55cb927-0852-4772-823a-0ec58a8d8db9" xlink:to="loc_us-gaap_PrimeRateMember_af735039-2458-485f-9f30-18d05e6172d3" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIES2021AmendedTermLoanDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#COMMITMENTSANDCONTINGENCIES2021AmendedTermLoanDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIES2021AmendedTermLoanDetails" xlink:type="extended" id="i73bd6d4e1680415b9c891b805cb630b5_COMMITMENTSANDCONTINGENCIES2021AmendedTermLoanDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_056ac7dc-16c6-4a49-9686-93a003b096ef" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_056ac7dc-16c6-4a49-9686-93a003b096ef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_a50f0d70-26e6-4539-a151-7f53c1e7e23f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_a50f0d70-26e6-4539-a151-7f53c1e7e23f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_dc9244eb-31f0-462e-a4e5-66da4fc7cca3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_DebtInstrumentTerm_dc9244eb-31f0-462e-a4e5-66da4fc7cca3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_d9138c12-e02c-4c18-8fb2-470316f6f607" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_d9138c12-e02c-4c18-8fb2-470316f6f607" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_45c27830-6f89-4b40-8eef-b1798f85e91b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_45c27830-6f89-4b40-8eef-b1798f85e91b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_4363f108-8789-4083-a70d-36463a2ab3f3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_4363f108-8789-4083-a70d-36463a2ab3f3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_41cd839d-7968-4548-b54b-f502c41ad82b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_41cd839d-7968-4548-b54b-f502c41ad82b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfCapitalizationLongtermDebtTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtLineItems_d08bc7df-c29b-4d3b-be8e-9a85d5d69b0d" xlink:to="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_5f48f92e-ff76-4cef-bf1b-f68082ebb641" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:to="loc_us-gaap_DebtInstrumentAxis_5f48f92e-ff76-4cef-bf1b-f68082ebb641" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_5f48f92e-ff76-4cef-bf1b-f68082ebb641_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_5f48f92e-ff76-4cef-bf1b-f68082ebb641" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_5f48f92e-ff76-4cef-bf1b-f68082ebb641_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_559ba1dd-5367-4eb5-bb5f-3f353d6aa9cf" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_5f48f92e-ff76-4cef-bf1b-f68082ebb641" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_559ba1dd-5367-4eb5-bb5f-3f353d6aa9cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_Amended2021TermLoanMember_e8087117-bc1f-4781-ac0a-9eefe1302d1f" xlink:href="exfy-20220930.xsd#exfy_Amended2021TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_559ba1dd-5367-4eb5-bb5f-3f353d6aa9cf" xlink:to="loc_exfy_Amended2021TermLoanMember_e8087117-bc1f-4781-ac0a-9eefe1302d1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_Amended2021TermLoanInitialTermLoanMember_9abc1565-b0c1-4237-b7b8-6172c878ad3c" xlink:href="exfy-20220930.xsd#exfy_Amended2021TermLoanInitialTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_559ba1dd-5367-4eb5-bb5f-3f353d6aa9cf" xlink:to="loc_exfy_Amended2021TermLoanInitialTermLoanMember_9abc1565-b0c1-4237-b7b8-6172c878ad3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_Amended2021TermLoanDelayedTermLoanMember_8dad2a60-bc44-4d69-a930-f89cc5805c5f" xlink:href="exfy-20220930.xsd#exfy_Amended2021TermLoanDelayedTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_559ba1dd-5367-4eb5-bb5f-3f353d6aa9cf" xlink:to="loc_exfy_Amended2021TermLoanDelayedTermLoanMember_8dad2a60-bc44-4d69-a930-f89cc5805c5f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_22676254-0ccf-4abd-8264-72b198e2b635" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_22676254-0ccf-4abd-8264-72b198e2b635" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_22676254-0ccf-4abd-8264-72b198e2b635_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_22676254-0ccf-4abd-8264-72b198e2b635" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_22676254-0ccf-4abd-8264-72b198e2b635_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_165b269b-84ad-43f7-b083-f0b0e0bd2076" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_22676254-0ccf-4abd-8264-72b198e2b635" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_165b269b-84ad-43f7-b083-f0b0e0bd2076" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_b483c078-9fd8-4eae-afc2-6db8eb1f93b2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_165b269b-84ad-43f7-b083-f0b0e0bd2076" xlink:to="loc_us-gaap_SecuredDebtMember_b483c078-9fd8-4eae-afc2-6db8eb1f93b2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_3b10f68f-6025-4503-9877-0c06c897bec7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_165b269b-84ad-43f7-b083-f0b0e0bd2076" xlink:to="loc_us-gaap_LineOfCreditMember_3b10f68f-6025-4503-9877-0c06c897bec7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_b0438819-ae53-4a92-9ac3-7285f965c00b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:to="loc_us-gaap_CreditFacilityAxis_b0438819-ae53-4a92-9ac3-7285f965c00b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_b0438819-ae53-4a92-9ac3-7285f965c00b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_b0438819-ae53-4a92-9ac3-7285f965c00b" xlink:to="loc_us-gaap_CreditFacilityDomain_b0438819-ae53-4a92-9ac3-7285f965c00b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_1fc202e7-2768-4f8d-b753-19bbf415389d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_b0438819-ae53-4a92-9ac3-7285f965c00b" xlink:to="loc_us-gaap_CreditFacilityDomain_1fc202e7-2768-4f8d-b753-19bbf415389d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_6b23505d-d8ce-41c2-971d-9796c0b92f2f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_1fc202e7-2768-4f8d-b753-19bbf415389d" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_6b23505d-d8ce-41c2-971d-9796c0b92f2f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_858bde29-7035-4f8e-8844-d90f2686a086" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:to="loc_srt_StatementScenarioAxis_858bde29-7035-4f8e-8844-d90f2686a086" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_858bde29-7035-4f8e-8844-d90f2686a086_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_858bde29-7035-4f8e-8844-d90f2686a086" xlink:to="loc_srt_ScenarioUnspecifiedDomain_858bde29-7035-4f8e-8844-d90f2686a086_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_84e72770-85ef-48cd-b6bd-236ccd3887a8" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_858bde29-7035-4f8e-8844-d90f2686a086" xlink:to="loc_srt_ScenarioUnspecifiedDomain_84e72770-85ef-48cd-b6bd-236ccd3887a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_2e7108c0-a57f-4846-b808-77876cbcee60" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_84e72770-85ef-48cd-b6bd-236ccd3887a8" xlink:to="loc_srt_ScenarioForecastMember_2e7108c0-a57f-4846-b808-77876cbcee60" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_10ad9997-fb86-479e-9746-0a4c9b744bd0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_10ad9997-fb86-479e-9746-0a4c9b744bd0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_10ad9997-fb86-479e-9746-0a4c9b744bd0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_10ad9997-fb86-479e-9746-0a4c9b744bd0" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_10ad9997-fb86-479e-9746-0a4c9b744bd0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_1133ab11-285d-4f6d-a719-e323fb4d947a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_10ad9997-fb86-479e-9746-0a4c9b744bd0" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_1133ab11-285d-4f6d-a719-e323fb4d947a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_3d994852-e30f-4118-9be4-962073969053" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_1133ab11-285d-4f6d-a719-e323fb4d947a" xlink:to="loc_us-gaap_SubsequentEventMember_3d994852-e30f-4118-9be4-962073969053" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_b5f265e7-9a0a-470b-ae3b-ef26588adc7d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCapitalizationLongtermDebtTable_85740155-c1a7-41ce-873d-38c4a56cbdbc" xlink:to="loc_us-gaap_VariableRateAxis_b5f265e7-9a0a-470b-ae3b-ef26588adc7d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_b5f265e7-9a0a-470b-ae3b-ef26588adc7d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_b5f265e7-9a0a-470b-ae3b-ef26588adc7d" xlink:to="loc_us-gaap_VariableRateDomain_b5f265e7-9a0a-470b-ae3b-ef26588adc7d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_0f608cea-4870-4298-abd1-b6beeacf91e4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_b5f265e7-9a0a-470b-ae3b-ef26588adc7d" xlink:to="loc_us-gaap_VariableRateDomain_0f608cea-4870-4298-abd1-b6beeacf91e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ReferenceRateMember_9d57425e-14ca-47a4-9de3-e40b37d1b2dc" xlink:href="exfy-20220930.xsd#exfy_ReferenceRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_0f608cea-4870-4298-abd1-b6beeacf91e4" xlink:to="loc_exfy_ReferenceRateMember_9d57425e-14ca-47a4-9de3-e40b37d1b2dc" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIESMonthlyrevolvinglineofcreditDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#COMMITMENTSANDCONTINGENCIESMonthlyrevolvinglineofcreditDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIESMonthlyrevolvinglineofcreditDetails" xlink:type="extended" id="i3c3d4755dcb74dbe95b81d8b1e8894a5_COMMITMENTSANDCONTINGENCIESMonthlyrevolvinglineofcreditDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_486796de-c846-428c-b704-a33e97383e14" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_486796de-c846-428c-b704-a33e97383e14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_502a4ae9-0707-4d25-b71a-b87ebc7cd950" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_502a4ae9-0707-4d25-b71a-b87ebc7cd950" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_d1ca1aaa-f0d4-4a82-a8b4-484d86114704" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_d1ca1aaa-f0d4-4a82-a8b4-484d86114704" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LinesOfCreditCurrent_c406fd51-8269-4883-972d-0085005d9138" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LinesOfCreditCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_LinesOfCreditCurrent_c406fd51-8269-4883-972d-0085005d9138" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_9a3adb47-1f3d-4e43-a188-26d23371171b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_9a3adb47-1f3d-4e43-a188-26d23371171b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_ab6b5e4e-1c1c-47fb-bd3e-2fb17cc50972" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_ab6b5e4e-1c1c-47fb-bd3e-2fb17cc50972" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_7f7439ce-b017-4226-bcc7-3bd3b26c1e47" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_7f7439ce-b017-4226-bcc7-3bd3b26c1e47" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_6e4f9280-3ce5-4b9a-9cec-7288c2191b09" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredFinanceCostsNoncurrentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_6e4f9280-3ce5-4b9a-9cec-7288c2191b09" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_ef9b0d6d-eea2-4b87-a96b-e542c0224a4c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_2fa9256a-25d1-45e3-82bb-4b599115e699" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_ef9b0d6d-eea2-4b87-a96b-e542c0224a4c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_69124a05-a624-489c-a210-fc11b9c81556" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_ef9b0d6d-eea2-4b87-a96b-e542c0224a4c" xlink:to="loc_us-gaap_CreditFacilityAxis_69124a05-a624-489c-a210-fc11b9c81556" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_69124a05-a624-489c-a210-fc11b9c81556_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_69124a05-a624-489c-a210-fc11b9c81556" xlink:to="loc_us-gaap_CreditFacilityDomain_69124a05-a624-489c-a210-fc11b9c81556_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_4ffad987-996c-4a6a-bd72-613dd383429c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_69124a05-a624-489c-a210-fc11b9c81556" xlink:to="loc_us-gaap_CreditFacilityDomain_4ffad987-996c-4a6a-bd72-613dd383429c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_9bb1effb-11e6-4063-a514-3604f94bd103" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_4ffad987-996c-4a6a-bd72-613dd383429c" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_9bb1effb-11e6-4063-a514-3604f94bd103" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_b505265b-2157-46fe-842c-fcabaf72488e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_ef9b0d6d-eea2-4b87-a96b-e542c0224a4c" xlink:to="loc_us-gaap_DebtInstrumentAxis_b505265b-2157-46fe-842c-fcabaf72488e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b505265b-2157-46fe-842c-fcabaf72488e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_b505265b-2157-46fe-842c-fcabaf72488e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b505265b-2157-46fe-842c-fcabaf72488e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_c179807b-e276-4ad0-a94c-11ab01016818" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_b505265b-2157-46fe-842c-fcabaf72488e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_c179807b-e276-4ad0-a94c-11ab01016818" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_Amended2021TermLoanMember_bf0b2eae-414d-4cda-9e64-0a3d8a4ac9cb" xlink:href="exfy-20220930.xsd#exfy_Amended2021TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_c179807b-e276-4ad0-a94c-11ab01016818" xlink:to="loc_exfy_Amended2021TermLoanMember_bf0b2eae-414d-4cda-9e64-0a3d8a4ac9cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_edac9259-5d1c-4eca-b72b-6f1346fc45e9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_ef9b0d6d-eea2-4b87-a96b-e542c0224a4c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_edac9259-5d1c-4eca-b72b-6f1346fc45e9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_edac9259-5d1c-4eca-b72b-6f1346fc45e9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_edac9259-5d1c-4eca-b72b-6f1346fc45e9" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_edac9259-5d1c-4eca-b72b-6f1346fc45e9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_6712be71-001c-4998-b74b-777903877c5b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_edac9259-5d1c-4eca-b72b-6f1346fc45e9" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_6712be71-001c-4998-b74b-777903877c5b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_389fe7b1-30be-480a-90a7-b613d2e2f240" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_6712be71-001c-4998-b74b-777903877c5b" xlink:to="loc_us-gaap_LineOfCreditMember_389fe7b1-30be-480a-90a7-b613d2e2f240" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_f0888c9c-6101-4bcb-9629-09df29962c22" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_ef9b0d6d-eea2-4b87-a96b-e542c0224a4c" xlink:to="loc_us-gaap_VariableRateAxis_f0888c9c-6101-4bcb-9629-09df29962c22" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_f0888c9c-6101-4bcb-9629-09df29962c22_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_f0888c9c-6101-4bcb-9629-09df29962c22" xlink:to="loc_us-gaap_VariableRateDomain_f0888c9c-6101-4bcb-9629-09df29962c22_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_04c66020-cbf6-4c66-9ce2-82a76e1fd80a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_f0888c9c-6101-4bcb-9629-09df29962c22" xlink:to="loc_us-gaap_VariableRateDomain_04c66020-cbf6-4c66-9ce2-82a76e1fd80a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ReferenceRateMember_7508dc29-ea84-4d50-b1b9-aa3ce5a9245c" xlink:href="exfy-20220930.xsd#exfy_ReferenceRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_04c66020-cbf6-4c66-9ce2-82a76e1fd80a" xlink:to="loc_exfy_ReferenceRateMember_7508dc29-ea84-4d50-b1b9-aa3ce5a9245c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIESDefinedContributionPlansDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#COMMITMENTSANDCONTINGENCIESDefinedContributionPlansDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/COMMITMENTSANDCONTINGENCIESDefinedContributionPlansDetails" xlink:type="extended" id="i922dfe4b4aa1485190348b956adb5668_COMMITMENTSANDCONTINGENCIESDefinedContributionPlansDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_5023205e-c20b-47c6-b189-3591de0ca285" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_f65ee286-d366-4c5d-ad72-7d893cb8e4a4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_5023205e-c20b-47c6-b189-3591de0ca285" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_f65ee286-d366-4c5d-ad72-7d893cb8e4a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_3ad83581-9d8b-4279-a41c-218c54ed1baa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_5023205e-c20b-47c6-b189-3591de0ca285" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_3ad83581-9d8b-4279-a41c-218c54ed1baa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_29a0db0f-6e63-49d7-9e42-43aad196c311" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_5023205e-c20b-47c6-b189-3591de0ca285" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_29a0db0f-6e63-49d7-9e42-43aad196c311" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanTable_f90c50d3-d38f-49ff-acc4-9c90206fdb71" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedContributionPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_5023205e-c20b-47c6-b189-3591de0ca285" xlink:to="loc_us-gaap_DefinedContributionPlanTable_f90c50d3-d38f-49ff-acc4-9c90206fdb71" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d5694d04-8825-4c46-b2c1-cbeb09133352" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_f90c50d3-d38f-49ff-acc4-9c90206fdb71" xlink:to="loc_srt_RangeAxis_d5694d04-8825-4c46-b2c1-cbeb09133352" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d5694d04-8825-4c46-b2c1-cbeb09133352_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d5694d04-8825-4c46-b2c1-cbeb09133352" xlink:to="loc_srt_RangeMember_d5694d04-8825-4c46-b2c1-cbeb09133352_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_2e120ecd-de2f-42d2-9d4e-01f35573bff4" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d5694d04-8825-4c46-b2c1-cbeb09133352" xlink:to="loc_srt_RangeMember_2e120ecd-de2f-42d2-9d4e-01f35573bff4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_71fc0785-55ce-4466-a2dd-8f91a8d88157" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_2e120ecd-de2f-42d2-9d4e-01f35573bff4" xlink:to="loc_srt_MaximumMember_71fc0785-55ce-4466-a2dd-8f91a8d88157" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationAxis_4fd4d608-e5a0-44e7-94b7-be73c5d8460d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetirementPlanSponsorLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_f90c50d3-d38f-49ff-acc4-9c90206fdb71" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationAxis_4fd4d608-e5a0-44e7-94b7-be73c5d8460d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_4fd4d608-e5a0-44e7-94b7-be73c5d8460d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_4fd4d608-e5a0-44e7-94b7-be73c5d8460d" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_4fd4d608-e5a0-44e7-94b7-be73c5d8460d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_2638e82b-aeb9-4f0d-ab26-9f1a851b27ae" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_4fd4d608-e5a0-44e7-94b7-be73c5d8460d" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_2638e82b-aeb9-4f0d-ab26-9f1a851b27ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticPlanMember_08278a4d-a3f6-4ab2-bad0-4fce81115447" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DomesticPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_2638e82b-aeb9-4f0d-ab26-9f1a851b27ae" xlink:to="loc_us-gaap_DomesticPlanMember_08278a4d-a3f6-4ab2-bad0-4fce81115447" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_3f16d71f-84b4-455e-a5ab-9448b87abbad" xlink:href="https://xbrl.sec.gov/country/2022/country-2022.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DomesticPlanMember_08278a4d-a3f6-4ab2-bad0-4fce81115447" xlink:to="loc_country_US_3f16d71f-84b4-455e-a5ab-9448b87abbad" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANS2009and2019StockOptionPlanDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANS2009and2019StockOptionPlanDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANS2009and2019StockOptionPlanDetails" xlink:type="extended" id="i6918528c789f493c95bd31b951f78d3c_STOCKINCENTIVEPLANS2009and2019StockOptionPlanDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_464d03c5-f9fb-4d9b-b934-371e6646c85e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_e4badfca-816d-4fe0-9c62-d025d1a52471" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_464d03c5-f9fb-4d9b-b934-371e6646c85e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_e4badfca-816d-4fe0-9c62-d025d1a52471" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_6708a30a-4888-4b79-9f04-5e182e17cd20" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_464d03c5-f9fb-4d9b-b934-371e6646c85e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_6708a30a-4888-4b79-9f04-5e182e17cd20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_ea564cf3-9946-49bc-8de3-b5a38013b407" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_464d03c5-f9fb-4d9b-b934-371e6646c85e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_ea564cf3-9946-49bc-8de3-b5a38013b407" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ee615514-c26c-4805-935b-ebe79e7faad9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_464d03c5-f9fb-4d9b-b934-371e6646c85e" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ee615514-c26c-4805-935b-ebe79e7faad9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_5fb6df45-770a-4915-94c7-2b08def88f70" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ee615514-c26c-4805-935b-ebe79e7faad9" xlink:to="loc_us-gaap_PlanNameAxis_5fb6df45-770a-4915-94c7-2b08def88f70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_5fb6df45-770a-4915-94c7-2b08def88f70_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_5fb6df45-770a-4915-94c7-2b08def88f70" xlink:to="loc_us-gaap_PlanNameDomain_5fb6df45-770a-4915-94c7-2b08def88f70_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_3657319b-d4a4-46d8-8cbf-90035f26cf5a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_5fb6df45-770a-4915-94c7-2b08def88f70" xlink:to="loc_us-gaap_PlanNameDomain_3657319b-d4a4-46d8-8cbf-90035f26cf5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2009OptionPlanMember_f51f1e09-c7c6-4c51-816f-8de92d3aa12d" xlink:href="exfy-20220930.xsd#exfy_The2009OptionPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_3657319b-d4a4-46d8-8cbf-90035f26cf5a" xlink:to="loc_exfy_The2009OptionPlanMember_f51f1e09-c7c6-4c51-816f-8de92d3aa12d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2019OptionPlanMember_b0c92485-fbe9-4455-ae32-64e09f079543" xlink:href="exfy-20220930.xsd#exfy_The2019OptionPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_3657319b-d4a4-46d8-8cbf-90035f26cf5a" xlink:to="loc_exfy_The2019OptionPlanMember_b0c92485-fbe9-4455-ae32-64e09f079543" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_cf789ea4-fa7e-47d7-bf2e-bb29feb9a1be" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ee615514-c26c-4805-935b-ebe79e7faad9" xlink:to="loc_us-gaap_AwardTypeAxis_cf789ea4-fa7e-47d7-bf2e-bb29feb9a1be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_cf789ea4-fa7e-47d7-bf2e-bb29feb9a1be_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_cf789ea4-fa7e-47d7-bf2e-bb29feb9a1be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_cf789ea4-fa7e-47d7-bf2e-bb29feb9a1be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_77699cae-5f9c-452b-a593-bfea1f3fe84a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_cf789ea4-fa7e-47d7-bf2e-bb29feb9a1be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_77699cae-5f9c-452b-a593-bfea1f3fe84a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_f4b3e573-74ff-43ae-bf1a-2f004c050b5b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_77699cae-5f9c-452b-a593-bfea1f3fe84a" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_f4b3e573-74ff-43ae-bf1a-2f004c050b5b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_bd3941fa-6c31-4afa-b39f-9491b6ec8664" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_77699cae-5f9c-452b-a593-bfea1f3fe84a" xlink:to="loc_us-gaap_EmployeeStockOptionMember_bd3941fa-6c31-4afa-b39f-9491b6ec8664" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_a4e35cec-4a89-43b0-80af-50b32f0435c2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ee615514-c26c-4805-935b-ebe79e7faad9" xlink:to="loc_us-gaap_StatementClassOfStockAxis_a4e35cec-4a89-43b0-80af-50b32f0435c2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_a4e35cec-4a89-43b0-80af-50b32f0435c2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_a4e35cec-4a89-43b0-80af-50b32f0435c2" xlink:to="loc_us-gaap_ClassOfStockDomain_a4e35cec-4a89-43b0-80af-50b32f0435c2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_a741ee7d-dbca-44b9-83b8-fd31884cf29a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_a4e35cec-4a89-43b0-80af-50b32f0435c2" xlink:to="loc_us-gaap_ClassOfStockDomain_a741ee7d-dbca-44b9-83b8-fd31884cf29a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_f7b6a330-e602-4295-9e15-e06f72009150" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_a741ee7d-dbca-44b9-83b8-fd31884cf29a" xlink:to="loc_us-gaap_CommonClassAMember_f7b6a330-e602-4295-9e15-e06f72009150" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT50Member_660d2423-9126-4bad-80c5-7c01a00b8c26" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_a741ee7d-dbca-44b9-83b8-fd31884cf29a" xlink:to="loc_exfy_CommonStockLT50Member_660d2423-9126-4bad-80c5-7c01a00b8c26" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANS2021IncentivePlanandMatchingPlanDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANS2021IncentivePlanandMatchingPlanDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANS2021IncentivePlanandMatchingPlanDetails" xlink:type="extended" id="i5f36c00aca5c42e0ad7885f5f9ead889_STOCKINCENTIVEPLANS2021IncentivePlanandMatchingPlanDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_adf6abae-f2b5-41c4-8d24-f7bb3bcb84cf" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_adf6abae-f2b5-41c4-8d24-f7bb3bcb84cf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_AnnualIncreaseInSharesReservedForIssuanceAsAPercentageOfCommonSharesOutstanding_bbd6b036-ef97-42d5-98da-920af12ae14b" xlink:href="exfy-20220930.xsd#exfy_AnnualIncreaseInSharesReservedForIssuanceAsAPercentageOfCommonSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_exfy_AnnualIncreaseInSharesReservedForIssuanceAsAPercentageOfCommonSharesOutstanding_bbd6b036-ef97-42d5-98da-920af12ae14b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan_36c85bbd-fbcd-435c-90d9-78a015079dba" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan_36c85bbd-fbcd-435c-90d9-78a015079dba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_7afe53d8-0100-4d5a-b152-aa6c3fb56939" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharesIssuedPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_7afe53d8-0100-4d5a-b152-aa6c3fb56939" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_c8349b5d-440f-491e-947d-0b1ad5f398f7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_c8349b5d-440f-491e-947d-0b1ad5f398f7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_de0be342-74a2-47da-adde-77277b5cd20a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_de0be342-74a2-47da-adde-77277b5cd20a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_107405bb-d08a-4c9a-8e7a-94d5b62ce979" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b08f19f3-21d8-4ada-9639-3998544d4e98" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_107405bb-d08a-4c9a-8e7a-94d5b62ce979" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_522977d2-764b-43f4-a6b5-9de3768bda88" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_107405bb-d08a-4c9a-8e7a-94d5b62ce979" xlink:to="loc_us-gaap_PlanNameAxis_522977d2-764b-43f4-a6b5-9de3768bda88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_522977d2-764b-43f4-a6b5-9de3768bda88_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_522977d2-764b-43f4-a6b5-9de3768bda88" xlink:to="loc_us-gaap_PlanNameDomain_522977d2-764b-43f4-a6b5-9de3768bda88_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_51643a87-4065-44c4-b491-f31b7c13cc8a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_522977d2-764b-43f4-a6b5-9de3768bda88" xlink:to="loc_us-gaap_PlanNameDomain_51643a87-4065-44c4-b491-f31b7c13cc8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2021IncentivePlanMember_f2906058-34a9-4c43-854b-4b8ddf1999b6" xlink:href="exfy-20220930.xsd#exfy_The2021IncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_51643a87-4065-44c4-b491-f31b7c13cc8a" xlink:to="loc_exfy_The2021IncentivePlanMember_f2906058-34a9-4c43-854b-4b8ddf1999b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_MatchingPlanMember_df0fd05d-8867-4aeb-bf67-fe2c56f34eea" xlink:href="exfy-20220930.xsd#exfy_MatchingPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_51643a87-4065-44c4-b491-f31b7c13cc8a" xlink:to="loc_exfy_MatchingPlanMember_df0fd05d-8867-4aeb-bf67-fe2c56f34eea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_ef8c944c-13d1-4c43-bd8f-6f47c95e751f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_107405bb-d08a-4c9a-8e7a-94d5b62ce979" xlink:to="loc_us-gaap_StatementClassOfStockAxis_ef8c944c-13d1-4c43-bd8f-6f47c95e751f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_ef8c944c-13d1-4c43-bd8f-6f47c95e751f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_ef8c944c-13d1-4c43-bd8f-6f47c95e751f" xlink:to="loc_us-gaap_ClassOfStockDomain_ef8c944c-13d1-4c43-bd8f-6f47c95e751f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_a1eeb4a2-3242-4344-8017-92099032cfb8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_ef8c944c-13d1-4c43-bd8f-6f47c95e751f" xlink:to="loc_us-gaap_ClassOfStockDomain_a1eeb4a2-3242-4344-8017-92099032cfb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_7c9d57a3-38db-4077-9bff-034ac1dcbb3c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_a1eeb4a2-3242-4344-8017-92099032cfb8" xlink:to="loc_us-gaap_CommonClassAMember_7c9d57a3-38db-4077-9bff-034ac1dcbb3c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_79eafe14-b2df-48d7-a6d5-a77c3c970854" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_107405bb-d08a-4c9a-8e7a-94d5b62ce979" xlink:to="loc_srt_RangeAxis_79eafe14-b2df-48d7-a6d5-a77c3c970854" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_79eafe14-b2df-48d7-a6d5-a77c3c970854_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_79eafe14-b2df-48d7-a6d5-a77c3c970854" xlink:to="loc_srt_RangeMember_79eafe14-b2df-48d7-a6d5-a77c3c970854_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_cda72807-f83f-4563-b5a1-ca8d44afadd2" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_79eafe14-b2df-48d7-a6d5-a77c3c970854" xlink:to="loc_srt_RangeMember_cda72807-f83f-4563-b5a1-ca8d44afadd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_b045418e-535b-473d-8396-33d7e52de569" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_cda72807-f83f-4563-b5a1-ca8d44afadd2" xlink:to="loc_srt_MaximumMember_b045418e-535b-473d-8396-33d7e52de569" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANSRSUNarrativesDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANSRSUNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANSRSUNarrativesDetails" xlink:type="extended" id="i4d5e73883c074fbdb5b984674ba27715_STOCKINCENTIVEPLANSRSUNarrativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_0fbf6598-cdb3-4c66-9267-8558b1a6db70" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_0fbf6598-cdb3-4c66-9267-8558b1a6db70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_b6a31193-e2c7-4ffa-b6f5-2b146def567f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_b6a31193-e2c7-4ffa-b6f5-2b146def567f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_e626be8c-4bf1-41d6-871a-4c275f53812b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_e626be8c-4bf1-41d6-871a-4c275f53812b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_c7134f8f-ce7b-4f0a-933d-5e3c8fa72789" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_c7134f8f-ce7b-4f0a-933d-5e3c8fa72789" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_a6efe4ec-fd23-4353-a111-548dc045ce22" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_a6efe4ec-fd23-4353-a111-548dc045ce22" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_916cdec2-58db-4a5d-a5ca-8eb0d34cab92" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_916cdec2-58db-4a5d-a5ca-8eb0d34cab92" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d1ed65-6777-4fa9-9036-7bfa9db118f3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_93d76586-86de-4d21-a675-bfebedb688d0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d1ed65-6777-4fa9-9036-7bfa9db118f3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_1197ca59-b389-426f-97df-e9dc67397386" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d1ed65-6777-4fa9-9036-7bfa9db118f3" xlink:to="loc_us-gaap_AwardTypeAxis_1197ca59-b389-426f-97df-e9dc67397386" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1197ca59-b389-426f-97df-e9dc67397386_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_1197ca59-b389-426f-97df-e9dc67397386" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1197ca59-b389-426f-97df-e9dc67397386_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b08ffa7b-8225-4c15-8bab-8fa529f67e2e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_1197ca59-b389-426f-97df-e9dc67397386" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b08ffa7b-8225-4c15-8bab-8fa529f67e2e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_9d740958-3f58-4edc-a4a5-7c18edf8fce2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b08ffa7b-8225-4c15-8bab-8fa529f67e2e" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_9d740958-3f58-4edc-a4a5-7c18edf8fce2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_a63edca6-dcad-4646-8ecf-d02825606d03" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d1ed65-6777-4fa9-9036-7bfa9db118f3" xlink:to="loc_us-gaap_StatementClassOfStockAxis_a63edca6-dcad-4646-8ecf-d02825606d03" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_a63edca6-dcad-4646-8ecf-d02825606d03_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_a63edca6-dcad-4646-8ecf-d02825606d03" xlink:to="loc_us-gaap_ClassOfStockDomain_a63edca6-dcad-4646-8ecf-d02825606d03_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_ca22f043-4e5d-4381-af3b-265cc0daa784" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_a63edca6-dcad-4646-8ecf-d02825606d03" xlink:to="loc_us-gaap_ClassOfStockDomain_ca22f043-4e5d-4381-af3b-265cc0daa784" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_6b9d3019-d64f-4c39-bb86-b78e1103aea7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ca22f043-4e5d-4381-af3b-265cc0daa784" xlink:to="loc_us-gaap_CommonClassAMember_6b9d3019-d64f-4c39-bb86-b78e1103aea7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT50Member_bde56f1d-6f08-4554-a0b6-4b9a7e4c0c6a" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ca22f043-4e5d-4381-af3b-265cc0daa784" xlink:to="loc_exfy_CommonStockLT50Member_bde56f1d-6f08-4554-a0b6-4b9a7e4c0c6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_d05f651f-63e5-47e0-bd44-53211f20e84a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d1ed65-6777-4fa9-9036-7bfa9db118f3" xlink:to="loc_us-gaap_PlanNameAxis_d05f651f-63e5-47e0-bd44-53211f20e84a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_d05f651f-63e5-47e0-bd44-53211f20e84a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_d05f651f-63e5-47e0-bd44-53211f20e84a" xlink:to="loc_us-gaap_PlanNameDomain_d05f651f-63e5-47e0-bd44-53211f20e84a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_8d856392-50c0-479a-8e46-486b787d62f5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_d05f651f-63e5-47e0-bd44-53211f20e84a" xlink:to="loc_us-gaap_PlanNameDomain_8d856392-50c0-479a-8e46-486b787d62f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_A2021StockPlanMember_c144a592-95a4-4b46-9e15-65315e5b8a3a" xlink:href="exfy-20220930.xsd#exfy_A2021StockPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_8d856392-50c0-479a-8e46-486b787d62f5" xlink:to="loc_exfy_A2021StockPlanMember_c144a592-95a4-4b46-9e15-65315e5b8a3a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2019OptionPlanMember_a477dd38-0838-496d-9eb0-c33914604b1b" xlink:href="exfy-20220930.xsd#exfy_The2019OptionPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_8d856392-50c0-479a-8e46-486b787d62f5" xlink:to="loc_exfy_The2019OptionPlanMember_a477dd38-0838-496d-9eb0-c33914604b1b" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANSRSURollforwardDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANSRSURollforwardDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANSRSURollforwardDetails" xlink:type="extended" id="i12006ca434764dee8d771dcdd8bdf703_STOCKINCENTIVEPLANSRSURollforwardDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f500a291-1acd-464e-9502-a56a559a70e6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2160d85d-9df2-48ed-9127-e2b4df4a6008" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f500a291-1acd-464e-9502-a56a559a70e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2160d85d-9df2-48ed-9127-e2b4df4a6008" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_89dbe136-7e26-4bd3-b7db-dd3bcefcdcc6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2160d85d-9df2-48ed-9127-e2b4df4a6008" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_89dbe136-7e26-4bd3-b7db-dd3bcefcdcc6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_3f333a63-2cee-4921-a786-7342c912787e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2160d85d-9df2-48ed-9127-e2b4df4a6008" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_3f333a63-2cee-4921-a786-7342c912787e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_29a85fd8-7f88-43ba-be18-b6843e3a2f99" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2160d85d-9df2-48ed-9127-e2b4df4a6008" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_29a85fd8-7f88-43ba-be18-b6843e3a2f99" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_36be6679-5a06-4988-8452-00970abb9b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2160d85d-9df2-48ed-9127-e2b4df4a6008" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_36be6679-5a06-4988-8452-00970abb9b6c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9112ec88-78b0-4abb-a985-7c5825fcf074" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f808f1cb-c53b-461e-87b3-16d0720b719e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f500a291-1acd-464e-9502-a56a559a70e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f808f1cb-c53b-461e-87b3-16d0720b719e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_1d8abc32-ce59-489a-86bb-db7a7f11222a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f808f1cb-c53b-461e-87b3-16d0720b719e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_1d8abc32-ce59-489a-86bb-db7a7f11222a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_f7b4af63-8462-421d-a5ac-35ffb89f691e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f808f1cb-c53b-461e-87b3-16d0720b719e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_f7b4af63-8462-421d-a5ac-35ffb89f691e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_e860cbaf-3e12-46a3-b499-a1300979c7f0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f808f1cb-c53b-461e-87b3-16d0720b719e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_e860cbaf-3e12-46a3-b499-a1300979c7f0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_3710541c-9162-4c5a-b519-fa2623031dbf" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f808f1cb-c53b-461e-87b3-16d0720b719e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_3710541c-9162-4c5a-b519-fa2623031dbf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_3e7ac6b1-c7c9-4be8-933e-f70b6c510f78" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_536e9eb6-f44e-4734-ae4a-f2698d0bd30c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f500a291-1acd-464e-9502-a56a559a70e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_536e9eb6-f44e-4734-ae4a-f2698d0bd30c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1eef60a2-c93b-4f9f-b77b-2db8ab5357f3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f500a291-1acd-464e-9502-a56a559a70e6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1eef60a2-c93b-4f9f-b77b-2db8ab5357f3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_d396ed19-56ce-401a-b831-d4843e39a678" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1eef60a2-c93b-4f9f-b77b-2db8ab5357f3" xlink:to="loc_us-gaap_AwardTypeAxis_d396ed19-56ce-401a-b831-d4843e39a678" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d396ed19-56ce-401a-b831-d4843e39a678_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_d396ed19-56ce-401a-b831-d4843e39a678" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d396ed19-56ce-401a-b831-d4843e39a678_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_46bde9fb-3113-465e-86a6-33e7d3a4bb24" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_d396ed19-56ce-401a-b831-d4843e39a678" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_46bde9fb-3113-465e-86a6-33e7d3a4bb24" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_c2183ed7-c68f-44f8-9148-3b3a3965ed8d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_46bde9fb-3113-465e-86a6-33e7d3a4bb24" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_c2183ed7-c68f-44f8-9148-3b3a3965ed8d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_dad489bf-d33a-492f-8088-2e6d4615a728" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1eef60a2-c93b-4f9f-b77b-2db8ab5357f3" xlink:to="loc_us-gaap_StatementClassOfStockAxis_dad489bf-d33a-492f-8088-2e6d4615a728" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_dad489bf-d33a-492f-8088-2e6d4615a728_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_dad489bf-d33a-492f-8088-2e6d4615a728" xlink:to="loc_us-gaap_ClassOfStockDomain_dad489bf-d33a-492f-8088-2e6d4615a728_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_faebd37a-b770-4d73-8ca5-5769e665b838" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_dad489bf-d33a-492f-8088-2e6d4615a728" xlink:to="loc_us-gaap_ClassOfStockDomain_faebd37a-b770-4d73-8ca5-5769e665b838" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_b85b2abf-dac8-425e-a4ff-3d509ae3872d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_faebd37a-b770-4d73-8ca5-5769e665b838" xlink:to="loc_us-gaap_CommonClassAMember_b85b2abf-dac8-425e-a4ff-3d509ae3872d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT50Member_5edb1263-07c7-46b0-a922-4266c9107931" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_faebd37a-b770-4d73-8ca5-5769e665b838" xlink:to="loc_exfy_CommonStockLT50Member_5edb1263-07c7-46b0-a922-4266c9107931" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_a1552ad5-1823-477a-8203-a7f97aca55b3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1eef60a2-c93b-4f9f-b77b-2db8ab5357f3" xlink:to="loc_us-gaap_PlanNameAxis_a1552ad5-1823-477a-8203-a7f97aca55b3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_a1552ad5-1823-477a-8203-a7f97aca55b3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_a1552ad5-1823-477a-8203-a7f97aca55b3" xlink:to="loc_us-gaap_PlanNameDomain_a1552ad5-1823-477a-8203-a7f97aca55b3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_75f0c775-5f7e-4e9b-a473-b7eefe4e3013" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_a1552ad5-1823-477a-8203-a7f97aca55b3" xlink:to="loc_us-gaap_PlanNameDomain_75f0c775-5f7e-4e9b-a473-b7eefe4e3013" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2019OptionPlanMember_1eeadac9-5b00-49a3-b85d-8dbe9fee3c92" xlink:href="exfy-20220930.xsd#exfy_The2019OptionPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_75f0c775-5f7e-4e9b-a473-b7eefe4e3013" xlink:to="loc_exfy_The2019OptionPlanMember_1eeadac9-5b00-49a3-b85d-8dbe9fee3c92" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANSStockOptionNarrativesDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANSStockOptionNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANSStockOptionNarrativesDetails" xlink:type="extended" id="if75abed91af34883b9cb5399cc88f8bd_STOCKINCENTIVEPLANSStockOptionNarrativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_78f00f58-8c23-44ed-bded-48b4aae63874" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_78f00f58-8c23-44ed-bded-48b4aae63874" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_3e85852a-7fa5-46db-a5e7-ca01d3a9c1ce" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_3e85852a-7fa5-46db-a5e7-ca01d3a9c1ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_767e2c36-5ad5-44e8-9302-f76a039b27b0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_767e2c36-5ad5-44e8-9302-f76a039b27b0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_StockSubjectToRepurchaseDuringPeriodDueToEarlyExercisedAndNotFullyVestedShares_161b6bda-4a2d-4742-9a31-db00189ebd80" xlink:href="exfy-20220930.xsd#exfy_StockSubjectToRepurchaseDuringPeriodDueToEarlyExercisedAndNotFullyVestedShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_exfy_StockSubjectToRepurchaseDuringPeriodDueToEarlyExercisedAndNotFullyVestedShares_161b6bda-4a2d-4742-9a31-db00189ebd80" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_StockSubjectToRepurchaseDuringPeriodDueToEarlyExercisedAndNotFullyVestedValue_5e68aed6-53d7-4db6-bf95-5cbef5f95ef6" xlink:href="exfy-20220930.xsd#exfy_StockSubjectToRepurchaseDuringPeriodDueToEarlyExercisedAndNotFullyVestedValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_exfy_StockSubjectToRepurchaseDuringPeriodDueToEarlyExercisedAndNotFullyVestedValue_5e68aed6-53d7-4db6-bf95-5cbef5f95ef6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_594ae79e-d48d-432f-97e1-6cefa18dd99e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_594ae79e-d48d-432f-97e1-6cefa18dd99e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_07ab7491-3b6a-4f12-9326-19fe50a18ae1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_07ab7491-3b6a-4f12-9326-19fe50a18ae1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_cd55266a-8900-4bbc-ac47-df5ed8841245" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_cd55266a-8900-4bbc-ac47-df5ed8841245" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_f5973cf7-5a78-4e40-aa55-f2d1e32fa7ff" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_f5973cf7-5a78-4e40-aa55-f2d1e32fa7ff" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_74513df1-da84-409a-af6a-a1eb551b2743" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_74513df1-da84-409a-af6a-a1eb551b2743" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_eff31879-92d9-45ca-af97-ac473f0f21fd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_eff31879-92d9-45ca-af97-ac473f0f21fd" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9f2e7e73-422d-485a-8135-8576fbcceb31" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_5400d23d-6ae7-430e-a708-7e6472b214c7" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:to="loc_srt_TitleOfIndividualAxis_5400d23d-6ae7-430e-a708-7e6472b214c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_5400d23d-6ae7-430e-a708-7e6472b214c7_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_5400d23d-6ae7-430e-a708-7e6472b214c7" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_5400d23d-6ae7-430e-a708-7e6472b214c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_42078fa6-ac89-44c8-a2aa-bcdc71dc5b44" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_5400d23d-6ae7-430e-a708-7e6472b214c7" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_42078fa6-ac89-44c8-a2aa-bcdc71dc5b44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_TenPercentHolderMember_c080d8ac-0b22-44ea-92a2-6c5711c05e5c" xlink:href="exfy-20220930.xsd#exfy_TenPercentHolderMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_42078fa6-ac89-44c8-a2aa-bcdc71dc5b44" xlink:to="loc_exfy_TenPercentHolderMember_c080d8ac-0b22-44ea-92a2-6c5711c05e5c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_OtherThanTenPercentHolderMember_92046dfd-1507-4bed-94dd-5c23489c5d51" xlink:href="exfy-20220930.xsd#exfy_OtherThanTenPercentHolderMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_42078fa6-ac89-44c8-a2aa-bcdc71dc5b44" xlink:to="loc_exfy_OtherThanTenPercentHolderMember_92046dfd-1507-4bed-94dd-5c23489c5d51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_bb16e0db-05d9-4bad-9845-25ab1cfd85ad" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_42078fa6-ac89-44c8-a2aa-bcdc71dc5b44" xlink:to="loc_srt_ChiefExecutiveOfficerMember_bb16e0db-05d9-4bad-9845-25ab1cfd85ad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_effad00f-821d-4362-bd4b-6674b4afd3f7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:to="loc_us-gaap_AwardTypeAxis_effad00f-821d-4362-bd4b-6674b4afd3f7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_effad00f-821d-4362-bd4b-6674b4afd3f7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_effad00f-821d-4362-bd4b-6674b4afd3f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_effad00f-821d-4362-bd4b-6674b4afd3f7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b3aab32e-c9e2-452d-beb7-047cf0aa1698" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_effad00f-821d-4362-bd4b-6674b4afd3f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b3aab32e-c9e2-452d-beb7-047cf0aa1698" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_a25bcfd7-6825-487c-9417-7bbf38c4039a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b3aab32e-c9e2-452d-beb7-047cf0aa1698" xlink:to="loc_us-gaap_EmployeeStockOptionMember_a25bcfd7-6825-487c-9417-7bbf38c4039a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_NonStatutoryOptionsMember_fae03950-65f9-42c5-a1db-73d8f12cc0d9" xlink:href="exfy-20220930.xsd#exfy_NonStatutoryOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b3aab32e-c9e2-452d-beb7-047cf0aa1698" xlink:to="loc_exfy_NonStatutoryOptionsMember_fae03950-65f9-42c5-a1db-73d8f12cc0d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockCompensationPlanMember_8c86dedb-013d-4f8c-80d5-7dd33370212c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockCompensationPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b3aab32e-c9e2-452d-beb7-047cf0aa1698" xlink:to="loc_us-gaap_StockCompensationPlanMember_8c86dedb-013d-4f8c-80d5-7dd33370212c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_c4644a6e-2256-4d88-8935-7fd81a67ceeb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:to="loc_us-gaap_PlanNameAxis_c4644a6e-2256-4d88-8935-7fd81a67ceeb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_c4644a6e-2256-4d88-8935-7fd81a67ceeb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_c4644a6e-2256-4d88-8935-7fd81a67ceeb" xlink:to="loc_us-gaap_PlanNameDomain_c4644a6e-2256-4d88-8935-7fd81a67ceeb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_f9f4f5e5-7e5a-4dd1-b7c8-a748402bf352" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_c4644a6e-2256-4d88-8935-7fd81a67ceeb" xlink:to="loc_us-gaap_PlanNameDomain_f9f4f5e5-7e5a-4dd1-b7c8-a748402bf352" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2019OptionPlanMember_462fba9b-2245-4ec5-b4fa-86f7923c005c" xlink:href="exfy-20220930.xsd#exfy_The2019OptionPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_f9f4f5e5-7e5a-4dd1-b7c8-a748402bf352" xlink:to="loc_exfy_The2019OptionPlanMember_462fba9b-2245-4ec5-b4fa-86f7923c005c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_The2009OptionPlanMember_37711f12-50aa-4cfa-a21a-d8c60a005a7f" xlink:href="exfy-20220930.xsd#exfy_The2009OptionPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_f9f4f5e5-7e5a-4dd1-b7c8-a748402bf352" xlink:to="loc_exfy_The2009OptionPlanMember_37711f12-50aa-4cfa-a21a-d8c60a005a7f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_5a118342-1ff8-4804-bba1-62ddfe1629e8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:to="loc_us-gaap_StatementClassOfStockAxis_5a118342-1ff8-4804-bba1-62ddfe1629e8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_5a118342-1ff8-4804-bba1-62ddfe1629e8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_5a118342-1ff8-4804-bba1-62ddfe1629e8" xlink:to="loc_us-gaap_ClassOfStockDomain_5a118342-1ff8-4804-bba1-62ddfe1629e8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_f3c70d73-7657-45fe-8851-9817aaeff018" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_5a118342-1ff8-4804-bba1-62ddfe1629e8" xlink:to="loc_us-gaap_ClassOfStockDomain_f3c70d73-7657-45fe-8851-9817aaeff018" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_acf70c83-52ad-42eb-89a6-2ed46d5a3611" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_f3c70d73-7657-45fe-8851-9817aaeff018" xlink:to="loc_us-gaap_CommonStockMember_acf70c83-52ad-42eb-89a6-2ed46d5a3611" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d90d9d17-5c7e-481d-9382-63db67e79f94" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f413a50-6614-4035-a0fd-81ae9fce3027" xlink:to="loc_srt_RangeAxis_d90d9d17-5c7e-481d-9382-63db67e79f94" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d90d9d17-5c7e-481d-9382-63db67e79f94_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d90d9d17-5c7e-481d-9382-63db67e79f94" xlink:to="loc_srt_RangeMember_d90d9d17-5c7e-481d-9382-63db67e79f94_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_63093299-636c-4f80-83e0-2fbe54c46f50" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d90d9d17-5c7e-481d-9382-63db67e79f94" xlink:to="loc_srt_RangeMember_63093299-636c-4f80-83e0-2fbe54c46f50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_da6dfd37-d384-4152-84ea-188b0f164efd" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_63093299-636c-4f80-83e0-2fbe54c46f50" xlink:to="loc_srt_MinimumMember_da6dfd37-d384-4152-84ea-188b0f164efd" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANSStockBasedCompensationDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANSStockBasedCompensationDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANSStockBasedCompensationDetails" xlink:type="extended" id="i8a088af70b67466babb63a32c1c39c3a_STOCKINCENTIVEPLANSStockBasedCompensationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_47da31ac-22f2-468b-8cfc-5eb86968c8a3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_99b3c23a-7458-4634-ad64-752fc2d70634" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_47da31ac-22f2-468b-8cfc-5eb86968c8a3" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_99b3c23a-7458-4634-ad64-752fc2d70634" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_46faf669-95ed-49e8-95b5-0687b9a47408" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_47da31ac-22f2-468b-8cfc-5eb86968c8a3" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_46faf669-95ed-49e8-95b5-0687b9a47408" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_e53acc9a-86b7-4cea-b2fa-d82fc4f76254" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_46faf669-95ed-49e8-95b5-0687b9a47408" xlink:to="loc_us-gaap_AwardTypeAxis_e53acc9a-86b7-4cea-b2fa-d82fc4f76254" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e53acc9a-86b7-4cea-b2fa-d82fc4f76254_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_e53acc9a-86b7-4cea-b2fa-d82fc4f76254" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e53acc9a-86b7-4cea-b2fa-d82fc4f76254_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5ad9b6c6-407c-4891-93a4-3cef512865ec" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_e53acc9a-86b7-4cea-b2fa-d82fc4f76254" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5ad9b6c6-407c-4891-93a4-3cef512865ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_f45feacb-689f-4d2c-9c15-44e123304f44" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5ad9b6c6-407c-4891-93a4-3cef512865ec" xlink:to="loc_us-gaap_EmployeeStockOptionMember_f45feacb-689f-4d2c-9c15-44e123304f44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_MatchingPlanMember_aa2cbb76-2477-4829-9f16-7cbbfa2d805b" xlink:href="exfy-20220930.xsd#exfy_MatchingPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5ad9b6c6-407c-4891-93a4-3cef512865ec" xlink:to="loc_exfy_MatchingPlanMember_aa2cbb76-2477-4829-9f16-7cbbfa2d805b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_9af75f08-6c4d-4b56-95a4-d7f27616fdac" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5ad9b6c6-407c-4891-93a4-3cef512865ec" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_9af75f08-6c4d-4b56-95a4-d7f27616fdac" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_a28f315d-01ae-4514-bf1c-3bcafe5a3b2b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_46faf669-95ed-49e8-95b5-0687b9a47408" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_a28f315d-01ae-4514-bf1c-3bcafe5a3b2b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_a28f315d-01ae-4514-bf1c-3bcafe5a3b2b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_a28f315d-01ae-4514-bf1c-3bcafe5a3b2b" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_a28f315d-01ae-4514-bf1c-3bcafe5a3b2b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_f68834c0-9354-482d-b88f-2f37a0f8acf2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_a28f315d-01ae-4514-bf1c-3bcafe5a3b2b" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_f68834c0-9354-482d-b88f-2f37a0f8acf2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_22fedbe1-9a76-499b-b46a-bbc9c7c732fd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_f68834c0-9354-482d-b88f-2f37a0f8acf2" xlink:to="loc_us-gaap_CostOfSalesMember_22fedbe1-9a76-499b-b46a-bbc9c7c732fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_e1ceaa63-1aa4-4d2c-821d-f987c3e932e9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_f68834c0-9354-482d-b88f-2f37a0f8acf2" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_e1ceaa63-1aa4-4d2c-821d-f987c3e932e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_be4ef101-d4fb-458d-94ae-68b130859d0f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_f68834c0-9354-482d-b88f-2f37a0f8acf2" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_be4ef101-d4fb-458d-94ae-68b130859d0f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_6525f24d-ba87-44f7-ab2a-74b5ce0ee9e0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_f68834c0-9354-482d-b88f-2f37a0f8acf2" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_6525f24d-ba87-44f7-ab2a-74b5ce0ee9e0" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/STOCKINCENTIVEPLANSStockbasedCompensationNarrativesDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#STOCKINCENTIVEPLANSStockbasedCompensationNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/STOCKINCENTIVEPLANSStockbasedCompensationNarrativesDetails" xlink:type="extended" id="i30d81108c7a84ada913d16fb465f79c5_STOCKINCENTIVEPLANSStockbasedCompensationNarrativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d7f39ca0-a479-4f56-82d7-67a048764395" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_f0b9513b-6aec-4864-af4d-b12d8fa59ce7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d7f39ca0-a479-4f56-82d7-67a048764395" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_f0b9513b-6aec-4864-af4d-b12d8fa59ce7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_87c948ac-5f6b-43c6-94f4-42adace3b8e4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d7f39ca0-a479-4f56-82d7-67a048764395" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_87c948ac-5f6b-43c6-94f4-42adace3b8e4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f697976a-7634-4e01-a7d0-e5c83013e520" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_87c948ac-5f6b-43c6-94f4-42adace3b8e4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f697976a-7634-4e01-a7d0-e5c83013e520" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_f697976a-7634-4e01-a7d0-e5c83013e520_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f697976a-7634-4e01-a7d0-e5c83013e520" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_f697976a-7634-4e01-a7d0-e5c83013e520_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d79aa9f9-05aa-43a7-8e2c-ebd4762d0e3e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f697976a-7634-4e01-a7d0-e5c83013e520" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d79aa9f9-05aa-43a7-8e2c-ebd4762d0e3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_f8175983-e289-4467-955d-e373bc85a8f2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d79aa9f9-05aa-43a7-8e2c-ebd4762d0e3e" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_f8175983-e289-4467-955d-e373bc85a8f2" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/NETLOSSINCOMEPERSHARENarrativesDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#NETLOSSINCOMEPERSHARENarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/NETLOSSINCOMEPERSHARENarrativesDetails" xlink:type="extended" id="i3df7688127484e909354f02309c012be_NETLOSSINCOMEPERSHARENarrativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_cb6b069a-7220-4ad5-89dd-88b10e5a3800" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareBasicLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockVotingRightPerShare_bc634ee7-4671-401f-99cf-fbbd31354b3b" xlink:href="exfy-20220930.xsd#exfy_CommonStockVotingRightPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_cb6b069a-7220-4ad5-89dd-88b10e5a3800" xlink:to="loc_exfy_CommonStockVotingRightPerShare_bc634ee7-4671-401f-99cf-fbbd31354b3b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_6b186c2a-d690-46f3-9902-f21592a99bf2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_cb6b069a-7220-4ad5-89dd-88b10e5a3800" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_6b186c2a-d690-46f3-9902-f21592a99bf2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ConversionOfStockNoticePeriod_4ced0714-a743-4906-9c86-3c8e70df02a2" xlink:href="exfy-20220930.xsd#exfy_ConversionOfStockNoticePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_cb6b069a-7220-4ad5-89dd-88b10e5a3800" xlink:to="loc_exfy_ConversionOfStockNoticePeriod_4ced0714-a743-4906-9c86-3c8e70df02a2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_3b97489d-6243-4a6d-be5c-d08175d466d0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_cb6b069a-7220-4ad5-89dd-88b10e5a3800" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_3b97489d-6243-4a6d-be5c-d08175d466d0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_980bfcf2-f7da-4919-a4aa-44106d387252" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_3b97489d-6243-4a6d-be5c-d08175d466d0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_980bfcf2-f7da-4919-a4aa-44106d387252" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_980bfcf2-f7da-4919-a4aa-44106d387252_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_980bfcf2-f7da-4919-a4aa-44106d387252" xlink:to="loc_us-gaap_ClassOfStockDomain_980bfcf2-f7da-4919-a4aa-44106d387252_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_3c23a1c5-178a-48ac-a343-36f339521621" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_980bfcf2-f7da-4919-a4aa-44106d387252" xlink:to="loc_us-gaap_ClassOfStockDomain_3c23a1c5-178a-48ac-a343-36f339521621" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_732f3849-0792-48f2-8442-ec9cd44ee9f6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3c23a1c5-178a-48ac-a343-36f339521621" xlink:to="loc_us-gaap_CommonClassAMember_732f3849-0792-48f2-8442-ec9cd44ee9f6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT10Member_169d69b2-b0bf-415d-a679-9f3aa5be289d" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT10Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3c23a1c5-178a-48ac-a343-36f339521621" xlink:to="loc_exfy_CommonStockLT10Member_169d69b2-b0bf-415d-a679-9f3aa5be289d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_CommonStockLT50Member_59ca2491-15c5-4672-8335-969a9b6ca623" xlink:href="exfy-20220930.xsd#exfy_CommonStockLT50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3c23a1c5-178a-48ac-a343-36f339521621" xlink:to="loc_exfy_CommonStockLT50Member_59ca2491-15c5-4672-8335-969a9b6ca623" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/NETLOSSINCOMEPERSHAREAntidilutiveSecuritiesDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#NETLOSSINCOMEPERSHAREAntidilutiveSecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/NETLOSSINCOMEPERSHAREAntidilutiveSecuritiesDetails" xlink:type="extended" id="ibfac405124134f289fd0c6861407545e_NETLOSSINCOMEPERSHAREAntidilutiveSecuritiesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_935689d3-6cba-42b8-bc8d-7649370a04c3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_f68edb3b-987e-48f2-92db-233ea670f91f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_935689d3-6cba-42b8-bc8d-7649370a04c3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_f68edb3b-987e-48f2-92db-233ea670f91f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_c21214b1-507d-48b4-841f-e56ae7c515b4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_935689d3-6cba-42b8-bc8d-7649370a04c3" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_c21214b1-507d-48b4-841f-e56ae7c515b4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1bfbe21a-9c8e-45c8-9e40-d7d5ce53a674" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_c21214b1-507d-48b4-841f-e56ae7c515b4" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1bfbe21a-9c8e-45c8-9e40-d7d5ce53a674" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_1bfbe21a-9c8e-45c8-9e40-d7d5ce53a674_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1bfbe21a-9c8e-45c8-9e40-d7d5ce53a674" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_1bfbe21a-9c8e-45c8-9e40-d7d5ce53a674_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4749579d-0eb1-429a-840b-3f79ea547091" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1bfbe21a-9c8e-45c8-9e40-d7d5ce53a674" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4749579d-0eb1-429a-840b-3f79ea547091" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_446e3246-e4b6-476c-92ac-ddd2ae685e1d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4749579d-0eb1-429a-840b-3f79ea547091" xlink:to="loc_us-gaap_WarrantMember_446e3246-e4b6-476c-92ac-ddd2ae685e1d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockCompensationPlanMember_36ff9b78-f572-4437-b216-8386d7df7f41" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockCompensationPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4749579d-0eb1-429a-840b-3f79ea547091" xlink:to="loc_us-gaap_StockCompensationPlanMember_36ff9b78-f572-4437-b216-8386d7df7f41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_MatchingPlanMember_950fc800-ed72-48d1-b35a-4327d1a25978" xlink:href="exfy-20220930.xsd#exfy_MatchingPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4749579d-0eb1-429a-840b-3f79ea547091" xlink:to="loc_exfy_MatchingPlanMember_950fc800-ed72-48d1-b35a-4327d1a25978" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_5238c5a1-b3fd-4e7e-b1de-b9cf5b8905f1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4749579d-0eb1-429a-840b-3f79ea547091" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_5238c5a1-b3fd-4e7e-b1de-b9cf5b8905f1" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/EQUITYDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#EQUITYDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/EQUITYDetails" xlink:type="extended" id="i169f961c54714f86928d16af5f7fd4cf_EQUITYDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_0b170640-317a-407b-bfa0-68fbec43774e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquityClassOfTreasuryStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_7a9a3b7c-1f88-4f8f-8151-a2b0a6e4abcc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_0b170640-317a-407b-bfa0-68fbec43774e" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_7a9a3b7c-1f88-4f8f-8151-a2b0a6e4abcc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_45af4858-e96d-4ab1-bbcc-32e02ed25e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfTreasuryStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_0b170640-317a-407b-bfa0-68fbec43774e" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_45af4858-e96d-4ab1-bbcc-32e02ed25e9f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_ee48cfd9-7de4-45d0-8510-4db9bdbbd01b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareRepurchaseProgramAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_45af4858-e96d-4ab1-bbcc-32e02ed25e9f" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_ee48cfd9-7de4-45d0-8510-4db9bdbbd01b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_ee48cfd9-7de4-45d0-8510-4db9bdbbd01b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_ee48cfd9-7de4-45d0-8510-4db9bdbbd01b" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_ee48cfd9-7de4-45d0-8510-4db9bdbbd01b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_5509a805-0568-4720-903f-7dc4ad6791c0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_ee48cfd9-7de4-45d0-8510-4db9bdbbd01b" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_5509a805-0568-4720-903f-7dc4ad6791c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_A2022ShareRepurchaseProgramMember_4fea2249-9d6f-4ec2-b5c0-88e818c24f70" xlink:href="exfy-20220930.xsd#exfy_A2022ShareRepurchaseProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_5509a805-0568-4720-903f-7dc4ad6791c0" xlink:to="loc_exfy_A2022ShareRepurchaseProgramMember_4fea2249-9d6f-4ec2-b5c0-88e818c24f70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_6cd59fe3-3ffc-4d71-b80d-f695a50e610a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_45af4858-e96d-4ab1-bbcc-32e02ed25e9f" xlink:to="loc_us-gaap_StatementClassOfStockAxis_6cd59fe3-3ffc-4d71-b80d-f695a50e610a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_6cd59fe3-3ffc-4d71-b80d-f695a50e610a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_6cd59fe3-3ffc-4d71-b80d-f695a50e610a" xlink:to="loc_us-gaap_ClassOfStockDomain_6cd59fe3-3ffc-4d71-b80d-f695a50e610a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_79abbf06-937f-47c0-b0bc-1fd4a7d72785" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_6cd59fe3-3ffc-4d71-b80d-f695a50e610a" xlink:to="loc_us-gaap_ClassOfStockDomain_79abbf06-937f-47c0-b0bc-1fd4a7d72785" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_d45f6ae2-d138-4fa3-8f0b-1b3c5b9a1942" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_79abbf06-937f-47c0-b0bc-1fd4a7d72785" xlink:to="loc_us-gaap_CommonClassAMember_d45f6ae2-d138-4fa3-8f0b-1b3c5b9a1942" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.expensify.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="simple" xlink:href="exfy-20220930.xsd#RELATEDPARTYTRANSACTIONSDetails"/>
  <link:definitionLink xlink:role="http://www.expensify.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="extended" id="idee9f2d30ea04db7b8cd342bf336cd0a_RELATEDPARTYTRANSACTIONSDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_e074041d-c2e0-4142-9b25-4e13d32da71d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_PaymentOfCommitmentsToRelatedParty_e05b352a-cd85-4adc-b190-47df812fc794" xlink:href="exfy-20220930.xsd#exfy_PaymentOfCommitmentsToRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_e074041d-c2e0-4142-9b25-4e13d32da71d" xlink:to="loc_exfy_PaymentOfCommitmentsToRelatedParty_e05b352a-cd85-4adc-b190-47df812fc794" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_7b916e6a-61d4-48aa-b694-e7f8f40ed5d1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_e074041d-c2e0-4142-9b25-4e13d32da71d" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_7b916e6a-61d4-48aa-b694-e7f8f40ed5d1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_b8f13ba2-ab01-41c4-bfe7-5d2395d1559e" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_7b916e6a-61d4-48aa-b694-e7f8f40ed5d1" xlink:to="loc_srt_CounterpartyNameAxis_b8f13ba2-ab01-41c4-bfe7-5d2395d1559e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b8f13ba2-ab01-41c4-bfe7-5d2395d1559e_default" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_b8f13ba2-ab01-41c4-bfe7-5d2395d1559e" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b8f13ba2-ab01-41c4-bfe7-5d2395d1559e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b1a113d2-8502-4511-a4c4-4fe8272c43ed" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_b8f13ba2-ab01-41c4-bfe7-5d2395d1559e" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b1a113d2-8502-4511-a4c4-4fe8272c43ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_ExpensifyOrgMember_7041036c-0067-4ef9-879a-2b922180cce2" xlink:href="exfy-20220930.xsd#exfy_ExpensifyOrgMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b1a113d2-8502-4511-a4c4-4fe8272c43ed" xlink:to="loc_exfy_ExpensifyOrgMember_7041036c-0067-4ef9-879a-2b922180cce2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_fb953aaa-d6bb-42d4-8f4d-f6b13b08061d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_7b916e6a-61d4-48aa-b694-e7f8f40ed5d1" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_fb953aaa-d6bb-42d4-8f4d-f6b13b08061d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_fb953aaa-d6bb-42d4-8f4d-f6b13b08061d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_fb953aaa-d6bb-42d4-8f4d-f6b13b08061d" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_fb953aaa-d6bb-42d4-8f4d-f6b13b08061d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_e4dc1506-dd8d-4eac-befa-f6e7063358a2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_fb953aaa-d6bb-42d4-8f4d-f6b13b08061d" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_e4dc1506-dd8d-4eac-befa-f6e7063358a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AffiliatedEntityMember_72c3a4e8-b48f-46a2-b04d-7632b41b365d" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_AffiliatedEntityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_e4dc1506-dd8d-4eac-befa-f6e7063358a2" xlink:to="loc_srt_AffiliatedEntityMember_72c3a4e8-b48f-46a2-b04d-7632b41b365d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-roles-2022.xsd#eedm"/>
  <link:definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_RightOfUseAssets_2e13dc3e-5193-4088-a026-05c415ed5f9a" xlink:href="exfy-20220930.xsd#exfy_RightOfUseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_exfy_RightOfUseAssets_2e13dc3e-5193-4088-a026-05c415ed5f9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_LeaseLiabilityCurrent_a1d58c66-e7a0-408d-96b0-561c01edcf17" xlink:href="exfy-20220930.xsd#exfy_LeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="loc_exfy_LeaseLiabilityCurrent_a1d58c66-e7a0-408d-96b0-561c01edcf17" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_exfy_LeaseLiabilityNonCurrent_e835623a-b14b-45e9-ac6d-ff43f45744ed" xlink:href="exfy-20220930.xsd#exfy_LeaseLiabilityNonCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract" xlink:to="loc_exfy_LeaseLiabilityNonCurrent_e835623a-b14b-45e9-ac6d-ff43f45744ed" xlink:type="arc" order="0"/>
  </link:definitionLink>
</link:linkbase>
