<SEC-DOCUMENT>0001756397-25-000001.txt : 20250401
<SEC-HEADER>0001756397-25-000001.hdr.sgml : 20250401
<ACCEPTANCE-DATETIME>20250401161738
ACCESSION NUMBER:		0001756397-25-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250328
FILED AS OF DATE:		20250401
DATE AS OF CHANGE:		20250401

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TERENCE E. ADDERLEY REVOCABLE TRUST K
		CENTRAL INDEX KEY:			0001756397
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-01088
		FILM NUMBER:		25799901

	BUSINESS ADDRESS:	
		STREET 1:		C/O ANDREW CUROE, TRUSTEE
		STREET 2:		6TH FLOOR AT FORD FIELD, 1901 ST ANTOINE
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226
		BUSINESS PHONE:		(313) 259-7777

	MAIL ADDRESS:	
		STREET 1:		C/O ANDREW CUROE, TRUSTEE
		STREET 2:		6TH FLOOR AT FORD FIELD, 1901 ST ANTOINE
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KELLY SERVICES INC
		CENTRAL INDEX KEY:			0000055135
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HELP SUPPLY SERVICES [7363]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				381510762
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1229

	BUSINESS ADDRESS:	
		STREET 1:		999 W BIG BEAVER RD
		CITY:			TROY
		STATE:			MI
		ZIP:			48084
		BUSINESS PHONE:		2483624444

	MAIL ADDRESS:	
		STREET 1:		999 WEST BIG BEAVER RD
		CITY:			TROY
		STATE:			MI
		ZIP:			48084
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000055135</issuerCik>
        <issuerName>KELLY SERVICES INC</issuerName>
        <issuerTradingSymbol>KELYB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001756397</rptOwnerCik>
            <rptOwnerName>TERENCE E. ADDERLEY REVOCABLE TRUST K</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ANDREW CUROE, TRUSTEE</rptOwnerStreet1>
            <rptOwnerStreet2>6TH FLOOR AT FORD FIELD, 1901 ST ANTOINE</rptOwnerStreet2>
            <rptOwnerCity>DETROIT</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48226</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-03-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3039940</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Andrew H. Curoe, Attorney-in-Fact by Power of Attorney</signatureName>
        <signatureDate>2025-04-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
