<SEC-DOCUMENT>0000930420-21-000243.txt : 20210914
<SEC-HEADER>0000930420-21-000243.hdr.sgml : 20210914
<ACCEPTANCE-DATETIME>20210914163721
ACCESSION NUMBER:		0000930420-21-000243
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210910
FILED AS OF DATE:		20210914
DATE AS OF CHANGE:		20210914

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brooks Derrick Dewan
		CENTRAL INDEX KEY:			0001850601

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26058
		FILM NUMBER:		211252791

	MAIL ADDRESS:	
		STREET 1:		1001 EAST PALM AVENUE
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33605

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KFORCE INC
		CENTRAL INDEX KEY:			0000930420
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HELP SUPPLY SERVICES [7363]
		IRS NUMBER:				593264661
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1001 EAST PALM AVENUE
		STREET 2:		SUITE
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33605
		BUSINESS PHONE:		8135525000

	MAIL ADDRESS:	
		STREET 1:		1001 EAST PALM AVENUE
		STREET 2:		SUITE
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33605

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KFORCE  INC
		DATE OF NAME CHANGE:	20000517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROMAC INTERNATIONAL INC
		DATE OF NAME CHANGE:	19950502
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_163165182318382.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-09-10</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000930420</issuerCik>
        <issuerName>KFORCE INC</issuerName>
        <issuerTradingSymbol>KFRC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001850601</rptOwnerCik>
            <rptOwnerName>Brooks Derrick Dewan</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1001 E. PALM AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TAMPA</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33605</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>2021-09-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2247</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The transaction is disclosing a dividend that is exempt from reporting under Rule 16a.</footnote>
        <footnote id="F2">On July 30, 2021, the issuer declared a cash dividend of $0.26 per share of common stock, payable September 24, 2021 to all shareholders of record on September 10, 2021 (the &quot;Dividend&quot;). The additional shares of restricted stock were received by the reporting person in connection with the Dividend and will vest in accordance with the terms of the reporting person's outstanding restricted stock agreement(s).</footnote>
        <footnote id="F3">Includes 2,247 shares of restricted stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Susan A. Gager, Attorney-in-Fact for Derrick Dewan Brooks</signatureName>
        <signatureDate>2021-09-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
