<SEC-DOCUMENT>0000927089-21-000091.txt : 20210224
<SEC-HEADER>0000927089-21-000091.hdr.sgml : 20210224
<ACCEPTANCE-DATETIME>20210224163446
ACCESSION NUMBER:		0000927089-21-000091
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210210
FILED AS OF DATE:		20210224
DATE AS OF CHANGE:		20210224

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Daves Lora Lee
		CENTRAL INDEX KEY:			0001504657

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23406
		FILM NUMBER:		21673873

	MAIL ADDRESS:	
		STREET 1:		C/O SOUTHERN MISSOURI BANCORP INC
		STREET 2:		531 VINE STREET
		CITY:			POPLAR BLUFF
		STATE:			MO
		ZIP:			63901

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHERN MISSOURI BANCORP, INC.
		CENTRAL INDEX KEY:			0000916907
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
		IRS NUMBER:				431665523
		STATE OF INCORPORATION:			MO
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		2991 OAK GROVE ROAD
		CITY:			POPLAR BLUFF
		STATE:			MO
		ZIP:			63901
		BUSINESS PHONE:		573-778-1800

	MAIL ADDRESS:	
		STREET 1:		2991 OAK GROVE ROAD
		CITY:			POPLAR BLUFF
		STATE:			MO
		ZIP:			63901

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SOUTHERN MISSOURI BANCORP INC
		DATE OF NAME CHANGE:	19940104
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2021-02-10</periodOfReport>

    <dateOfOriginalSubmission>2021-02-12</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0000916907</issuerCik>
        <issuerName>SOUTHERN MISSOURI BANCORP, INC.</issuerName>
        <issuerTradingSymbol>SMBC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001504657</rptOwnerCik>
            <rptOwnerName>Daves Lora Lee</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2>1588 WAYNE ROUTE E</rptOwnerStreet2>
            <rptOwnerCity>GREENVILLE</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63944</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, Chief Risk Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-02-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>23680</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The shares are scheduled to vest over a five-year period beginning February 9, 2022, with up to 20% of the shares vesting on that date and on each of the next four anniversaries of that date based on the extent to which the Company's annualized return on average assets over the 12 calendar quarters ending immediately prior to the applicable vesting date exceeds a threshold level.</footnote>
        <footnote id="F2">The amendment is being filed to reflect an increase of 56 shares in the amount shown in item 5 since the last filing in order to include shares acquired pursuant to the Company's Dividend Reinvestment Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Lora Lee Daves</signatureName>
        <signatureDate>2021-02-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
