<SEC-DOCUMENT>0000004977-22-000152.txt : 20221118
<SEC-HEADER>0000004977-22-000152.hdr.sgml : 20221118
<ACCEPTANCE-DATETIME>20221118085803
ACCESSION NUMBER:		0000004977-22-000152
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20221116
FILED AS OF DATE:		20221118
DATE AS OF CHANGE:		20221118

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KIRSCH ERIC M
		CENTRAL INDEX KEY:			0001531975

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07434
		FILM NUMBER:		221400679

	MAIL ADDRESS:	
		STREET 1:		1932 WYNNTON RD
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31999

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AFLAC INC
		CENTRAL INDEX KEY:			0000004977
		STANDARD INDUSTRIAL CLASSIFICATION:	ACCIDENT & HEALTH INSURANCE [6321]
		IRS NUMBER:				581167100
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1932 WYNNTON RD
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31999
		BUSINESS PHONE:		7063233431

	MAIL ADDRESS:	
		STREET 1:		1932 WYNNTON ROAD
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31999

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN FAMILY CORP
		DATE OF NAME CHANGE:	19920306
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_166877986460135.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-11-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000004977</issuerCik>
        <issuerName>AFLAC INC</issuerName>
        <issuerTradingSymbol>AFL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001531975</rptOwnerCik>
            <rptOwnerName>KIRSCH ERIC M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AFLAC INCORPORATED</rptOwnerStreet1>
            <rptOwnerStreet2>1932 WYNNTON ROAD</rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>31999</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Vice President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-11-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>28400</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>70.8952</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>35721</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>132000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Spousal trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares (the &quot;Trust Shares&quot;) were a gift from Eric M. Kirsch to the Eric M. Kirsch Irrevocable Trust Agreement (the &quot;Spousal Trust&quot;). The trustee of the trust is Mr. Kirsch's spouse. The primary beneficiary of the spousal trust is Mr. Kirsch's spouse, and the secondary beneficiaries are his children. Mr. Kirsch disclaims Section 16 beneficial ownership of the Trust Shares, and this report shall not be deemed an admission that he is the beneficial owner of the Trust Shares, except to the extent of his pecuniary interest, if any, therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: Brooke R. Phillips For: Eric M. Kirsch</signatureName>
        <signatureDate>2022-11-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
