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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019df419-a872-713d-9e39-1ded61bdc12e,g:3d6a39ee-5b03-466b-9cb9-474b949486e7-->
<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.lpl.com/role/DocumentandEntityInformationDocument" xlink:type="simple" xlink:href="lpla-20260730.xsd#DocumentandEntityInformationDocument"/>
  <link:presentationLink xlink:role="http://www.lpl.com/role/DocumentandEntityInformationDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:href="lpla-20260730.xsd#lpla_Coverpage.Abstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019df419-a872-7bde-b3e0-72322a38f4cf" 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_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_DocumentType_019df419-a872-7bde-b3e0-72322a38f4cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019df419-a872-7e31-bf36-60b04c21a5e7" 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_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_DocumentPeriodEndDate_019df419-a872-7e31-bf36-60b04c21a5e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019df419-a872-7d61-a0c1-5c257f09a66c" 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_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityRegistrantName_019df419-a872-7d61-a0c1-5c257f09a66c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019df419-a872-7be1-85f3-926ad39e59d9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019df419-a872-7be1-85f3-926ad39e59d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019df419-a872-7682-a07f-36b5f8f288c0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityFileNumber_019df419-a872-7682-a07f-36b5f8f288c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019df419-a872-775b-a43b-cd9294250c7b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityTaxIdentificationNumber_019df419-a872-775b-a43b-cd9294250c7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019df419-a872-7dcd-9ace-b4963440b9a8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityAddressAddressLine1_019df419-a872-7dcd-9ace-b4963440b9a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019df419-a872-70f3-b6ce-f89629fa00b3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityAddressCityOrTown_019df419-a872-70f3-b6ce-f89629fa00b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019df419-a872-7ba7-8d23-99e0ffb8f17b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityAddressStateOrProvince_019df419-a872-7ba7-8d23-99e0ffb8f17b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019df419-a872-7c9c-a2a6-bb501a83ba42" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityAddressPostalZipCode_019df419-a872-7c9c-a2a6-bb501a83ba42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019df419-a872-731c-ae5c-36d2ceb80144" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_CityAreaCode_019df419-a872-731c-ae5c-36d2ceb80144" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019df419-a872-7bd9-90ee-0d0ad2c058b7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_LocalPhoneNumber_019df419-a872-7bd9-90ee-0d0ad2c058b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019df419-a872-7276-b37f-e990b226d09c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_WrittenCommunications_019df419-a872-7276-b37f-e990b226d09c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019df419-a872-72e3-aa05-95e575e4f126" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_SolicitingMaterial_019df419-a872-72e3-aa05-95e575e4f126" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019df419-a872-7561-9d02-cde1990c5429" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_PreCommencementTenderOffer_019df419-a872-7561-9d02-cde1990c5429" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019df419-a872-7178-93ab-6fb6f6fd2f24" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019df419-a872-7178-93ab-6fb6f6fd2f24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019df419-a872-7e7f-acbf-e2e8556342df" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_Security12bTitle_019df419-a872-7e7f-acbf-e2e8556342df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019df419-a872-72c1-ada3-b3cbcc3af15e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_TradingSymbol_019df419-a872-72c1-ada3-b3cbcc3af15e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019df419-a872-746d-8ba2-93419df4fcfa" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_SecurityExchangeName_019df419-a872-746d-8ba2-93419df4fcfa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019df419-a872-7a53-b19d-c01ec8545130" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityEmergingGrowthCompany_019df419-a872-7a53-b19d-c01ec8545130" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019df419-a872-732c-9217-26c6b6caf10d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_EntityCentralIndexKey_019df419-a872-732c-9217-26c6b6caf10d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019df419-a872-7cb9-8420-a76698125afc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lpla_Coverpage.Abstract_019df419-a872-75c7-afd5-c22139208009" xlink:to="loc_dei_AmendmentFlag_019df419-a872-7cb9-8420-a76698125afc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
