<SEC-DOCUMENT>0001538716-21-000129.txt : 20210701
<SEC-HEADER>0001538716-21-000129.hdr.sgml : 20210701
<ACCEPTANCE-DATETIME>20210701185445
ACCESSION NUMBER:		0001538716-21-000129
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210630
FILED AS OF DATE:		20210701
DATE AS OF CHANGE:		20210701

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PASCARELLA CARL
		CENTRAL INDEX KEY:			0001251447

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39050
		FILM NUMBER:		211067507

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Oportun Financial Corp
		CENTRAL INDEX KEY:			0001538716
		STANDARD INDUSTRIAL CLASSIFICATION:	FINANCE SERVICES [6199]
		IRS NUMBER:				453361983
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2 CIRCLE STAR WAY
		CITY:			SAN CARLOS
		STATE:			CA
		ZIP:			94070
		BUSINESS PHONE:		(650) 810-8823

	MAIL ADDRESS:	
		STREET 1:		2 CIRCLE STAR WAY
		CITY:			SAN CARLOS
		STATE:			CA
		ZIP:			94070

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Progreso Financiero Holdings, Inc.
		DATE OF NAME CHANGE:	20120104
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_162518005259842.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-06-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001538716</issuerCik>
        <issuerName>Oportun Financial Corp</issuerName>
        <issuerTradingSymbol>OPRT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001251447</rptOwnerCik>
            <rptOwnerName>PASCARELLA CARL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O OPORTUN FINANCIAL CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>2 CIRCLE STAR WAY</rptOwnerStreet2>
            <rptOwnerCity>SAN CARLOS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94070</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-06-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1093</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>143837</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The shares represent a fully vested restricted stock unit award. The Reporting Person has elected to defer delivery of the shares, pursuant to the Restricted Stock Unit Award Grant Notice (Non-Employee Director) and Restricted Stock Unit Award Agreement and the deferral election form, subject to compliance with the Internal Revenue Code Section 409A. The shares will be delivered in equal annual installments over two years beginning on the earlier of: (i) January 30 of the calendar year following the Reporting Person's separation of service from the Issuer or (ii) January 30, 2026.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kathleen Layton (Attorney-in-Fact)</signatureName>
        <signatureDate>2021-07-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
