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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f7121-2f3a-7219-ae3a-90b587f6811a,g:11fba160-c695-49dc-8015-3346ce721794-->
<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://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#ClassOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_C000267347Member_019f7121-2f3a-7bfb-a2e5-4fe8d49bcba9" xlink:href="ck0001592900-20260531.xsd#ck0001592900_C000267347Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001592900_C000267347Member_019f7121-2f3a-7bfb-a2e5-4fe8d49bcba9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#IndustrySectorOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_IndustrySectorDomain" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_IndustrySectorDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_DomesticETFsMember_019f7121-2f3a-7328-93ef-15a37d5c39e2" xlink:href="ck0001592900-20260531.xsd#ck0001592900_DomesticETFsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_IndustrySectorDomain" xlink:to="loc_ck0001592900_DomesticETFsMember_019f7121-2f3a-7328-93ef-15a37d5c39e2" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialServiceMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_IndustrySectorDomain" xlink:to="loc_us-gaap_FinancialServiceMember" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HealthCareMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HealthCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_IndustrySectorDomain" xlink:to="loc_us-gaap_HealthCareMember" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_CashAndCashEquivalents1Member_019f7121-57ad-7db4-a27f-f51aa7f5efa6" xlink:href="ck0001592900-20260531.xsd#ck0001592900_CashAndCashEquivalents1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_IndustrySectorDomain" xlink:to="loc_ck0001592900_CashAndCashEquivalents1Member_019f7121-57ad-7db4-a27f-f51aa7f5efa6" xlink:type="arc" order="13"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#LargestHoldingOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_LargestHoldingsDomain" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_LargestHoldingsDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_VanguardTotalStockMarketETFMember_019f7122-915c-7525-bd06-9174994613fe" xlink:href="ck0001592900-20260531.xsd#ck0001592900_VanguardTotalStockMarketETFMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_VanguardTotalStockMarketETFMember_019f7122-915c-7525-bd06-9174994613fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_BroadcomInc.Member_019f7122-fcbf-72cc-abe3-be44378c9e6b" xlink:href="ck0001592900-20260531.xsd#ck0001592900_BroadcomInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_BroadcomInc.Member_019f7122-fcbf-72cc-abe3-be44378c9e6b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_NVIDIACorp.Member_019f7123-aa70-7349-a930-5b5eda0a72be" xlink:href="ck0001592900-20260531.xsd#ck0001592900_NVIDIACorp.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_NVIDIACorp.Member_019f7123-aa70-7349-a930-5b5eda0a72be" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_ExxonMobilCorp.Member_019f7121-2f3a-71c0-872d-4bfe12952f97" xlink:href="ck0001592900-20260531.xsd#ck0001592900_ExxonMobilCorp.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_ExxonMobilCorp.Member_019f7121-2f3a-71c0-872d-4bfe12952f97" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_EliLillyCo.Member_019f7125-9382-76d1-8c3c-7bcd9675e995" xlink:href="ck0001592900-20260531.xsd#ck0001592900_EliLillyCo.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_EliLillyCo.Member_019f7125-9382-76d1-8c3c-7bcd9675e995" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_MicronTechnologyInc.Member_019f7126-1e56-76bf-84cb-9ec2032955a7" xlink:href="ck0001592900-20260531.xsd#ck0001592900_MicronTechnologyInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_MicronTechnologyInc.Member_019f7126-1e56-76bf-84cb-9ec2032955a7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_JPMorganChaseCo.Member_019f7126-c42a-7a92-a665-6c4e98f21df7" xlink:href="ck0001592900-20260531.xsd#ck0001592900_JPMorganChaseCo.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_JPMorganChaseCo.Member_019f7126-c42a-7a92-a665-6c4e98f21df7" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_AdvancedMicroDevicesInc.Member_019f7127-613a-794d-af02-0e437f48d1ac" xlink:href="ck0001592900-20260531.xsd#ck0001592900_AdvancedMicroDevicesInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_AdvancedMicroDevicesInc.Member_019f7127-613a-794d-af02-0e437f48d1ac" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_Amazon.comInc.Member_019f7127-d1d9-7bc6-b343-d39d78122d83" xlink:href="ck0001592900-20260531.xsd#ck0001592900_Amazon.comInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_Amazon.comInc.Member_019f7127-d1d9-7bc6-b343-d39d78122d83" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001592900_VisaInc.ClassAMember_019f7128-3c0f-787b-b2df-a88f9c9966cb" xlink:href="ck0001592900-20260531.xsd#ck0001592900_VisaInc.ClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_LargestHoldingsDomain" xlink:to="loc_ck0001592900_VisaInc.ClassAMember_019f7128-3c0f-787b-b2df-a88f9c9966cb" xlink:type="arc" order="10"/>
  </link:definitionLink>
</link:linkbase>
