<SEC-DOCUMENT>0001662991-24-000024.txt : 20240206
<SEC-HEADER>0001662991-24-000024.hdr.sgml : 20240206
<ACCEPTANCE-DATETIME>20240206164409
ACCESSION NUMBER:		0001662991-24-000024
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230701
FILED AS OF DATE:		20240206
DATE AS OF CHANGE:		20240206

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Youakim Charles
		CENTRAL INDEX KEY:			0001864990
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41781
		FILM NUMBER:		24600877

	MAIL ADDRESS:	
		STREET 1:		251 1ST AVENUE N
		STREET 2:		SUITE 200
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55401-1672

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sezzle Inc.
		CENTRAL INDEX KEY:			0001662991
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				810971660
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		700 NICOLET MALL
		STREET 2:		SUITE 640
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55402
		BUSINESS PHONE:		651-504-5294

	MAIL ADDRESS:	
		STREET 1:		PO BOX 3226
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55403
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>wk-form4a_1707255836.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2023-07-01</periodOfReport>

    <dateOfOriginalSubmission>2023-07-05</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001662991</issuerCik>
        <issuerName>Sezzle Inc.</issuerName>
        <issuerTradingSymbol>SEZL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001864990</rptOwnerCik>
            <rptOwnerName>Youakim Charles</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>700 NICOLLET MALL</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 640</rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55402</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Chairman and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.00001 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2023-07-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4846</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.37</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2062750</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Reflecting shares withheld in respect of tax obligations upon vesting of restricted stock units.</footnote>
        <footnote id="F2">The previous Form 4 filed in respect of this listed transaction is being amended to correct an administrative error on the part of the issuer, which misreported the amount of shares withheld to satisfy tax withholding obligations upon vesting of restricted stock units as 4,449 shares. The corrected transaction reflects a decrease of 397 shares withheld as a result of such vesting.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brady Duane Kafka, as Attorney-in-Fact</signatureName>
        <signatureDate>2024-02-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
