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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c540a-9b92-79c0-bf55-965e4aba9ff5,g:04798953-4b3e-4ab8-bc0b-c3af71d8b567-->
<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" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.nationalmi.com/role/CoverPage" xlink:type="simple" xlink:href="nmih-20260430.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.nationalmi.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019c540a-9b92-7727-85b3-494aa72f1f06" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_DocumentType_019c540a-9b92-7727-85b3-494aa72f1f06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019c540a-9b92-7b7b-b228-11cd374d5d27" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_DocumentPeriodEndDate_019c540a-9b92-7b7b-b228-11cd374d5d27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019c540a-9b92-7ab1-a7bc-24978265a7f1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityRegistrantName_019c540a-9b92-7ab1-a7bc-24978265a7f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019c540a-9b92-7c8b-b605-d05e05c6b2b0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityCentralIndexKey_019c540a-9b92-7c8b-b605-d05e05c6b2b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019c540a-9b92-7a2e-abfa-725f13cb5ec6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_AmendmentFlag_019c540a-9b92-7a2e-abfa-725f13cb5ec6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019c540a-9b92-7296-9e87-c9ec9f795195" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019c540a-9b92-7296-9e87-c9ec9f795195" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019c540a-9b92-7e52-8cee-74dbe1045955" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityFileNumber_019c540a-9b92-7e52-8cee-74dbe1045955" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019c540a-9b92-7a4b-a1a7-1ba6f10937cb" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityTaxIdentificationNumber_019c540a-9b92-7a4b-a1a7-1ba6f10937cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019c540a-9b92-7170-bb8a-ceb68ef9a9f5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityAddressAddressLine1_019c540a-9b92-7170-bb8a-ceb68ef9a9f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019c540a-9b92-7295-ad6c-5f118bddeed3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityAddressAddressLine2_019c540a-9b92-7295-ad6c-5f118bddeed3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019c540a-9b92-7e36-b443-7e83711d673c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityAddressCityOrTown_019c540a-9b92-7e36-b443-7e83711d673c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019c540a-9b92-7f4d-9f33-bf77eaa9bc13" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityAddressStateOrProvince_019c540a-9b92-7f4d-9f33-bf77eaa9bc13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019c540a-9b92-77cb-bcdc-3bc1cd71da93" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityAddressPostalZipCode_019c540a-9b92-77cb-bcdc-3bc1cd71da93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019c540a-9b92-73e3-8e24-a16ec771621e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_CityAreaCode_019c540a-9b92-73e3-8e24-a16ec771621e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019c540a-9b92-7d76-87c2-ff81dc069b30" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_LocalPhoneNumber_019c540a-9b92-7d76-87c2-ff81dc069b30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019c540a-9b92-77a6-9d57-d8fe04fba8cc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_WrittenCommunications_019c540a-9b92-77a6-9d57-d8fe04fba8cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019c540a-9b92-75f9-9f2c-c33b74d8e1d2" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_SolicitingMaterial_019c540a-9b92-75f9-9f2c-c33b74d8e1d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019c540a-9b92-77b5-8e60-19991ec6fc90" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_PreCommencementTenderOffer_019c540a-9b92-77b5-8e60-19991ec6fc90" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019c540a-9b92-773a-a4b8-4ff46638788f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019c540a-9b92-773a-a4b8-4ff46638788f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019c540a-9b92-7c13-aa0a-6c67075764d5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_Security12bTitle_019c540a-9b92-7c13-aa0a-6c67075764d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019c540a-9b92-70a2-8f17-2dad2124ff35" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_TradingSymbol_019c540a-9b92-70a2-8f17-2dad2124ff35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019c540a-9b92-77fe-83fd-def2b5e8f20c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_SecurityExchangeName_019c540a-9b92-77fe-83fd-def2b5e8f20c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019c540a-9b92-75b9-89af-af4179fb9d4c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019c540a-9b92-7a15-a037-47e2005bdcad" xlink:to="loc_dei_EntityEmergingGrowthCompany_019c540a-9b92-75b9-89af-af4179fb9d4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
