<SEC-DOCUMENT>0000840489-16-000070.txt : 20160216
<SEC-HEADER>0000840489-16-000070.hdr.sgml : 20160215
<ACCEPTANCE-DATETIME>20160216183707
ACCESSION NUMBER:		0000840489-16-000070
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151231
FILED AS OF DATE:		20160216
DATE AS OF CHANGE:		20160216

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST CASH FINANCIAL SERVICES INC
		CENTRAL INDEX KEY:			0000840489
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-MISCELLANEOUS RETAIL [5900]
		IRS NUMBER:				752237318
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		690 E LAMAR BLVD
		STREET 2:		STE 400
		CITY:			ARLINGTON
		STATE:			TX
		ZIP:			76011
		BUSINESS PHONE:		8174603947

	MAIL ADDRESS:	
		STREET 1:		690 E LAMAR BLVD
		STREET 2:		STE 400
		CITY:			ARLINGTON
		STATE:			TX
		ZIP:			76011

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST CASH INC
		DATE OF NAME CHANGE:	19940218

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Moore Sean
		CENTRAL INDEX KEY:			0001612809

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19133
		FILM NUMBER:		161430939

	MAIL ADDRESS:	
		STREET 1:		690 E. LAMAR BLVD.
		CITY:			ARLINGTON
		STATE:			TX
		ZIP:			76126
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>wf-form5_145566581660339.xml
<DESCRIPTION>FORM 5
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2015-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000840489</issuerCik>
        <issuerName>FIRST CASH FINANCIAL SERVICES INC</issuerName>
        <issuerTradingSymbol>FCFS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001612809</rptOwnerCik>
            <rptOwnerName>Moore Sean</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>690 E. LAMAR BLVD., STE. 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ARLINGTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76011</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP Store Development</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1998</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>730.06</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Options</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>40.0</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-07-01</value>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-12-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Includes 600 shares of restricted stock awards granted in 2010. Vesting is time-based with 300 shares which vested on January 31, 2016 and 300 shares schedule to vest on January 31, 2017.</footnote>
        <footnote id="F2">Shares held in the First Cash 401(k) Profit Sharing Plan as of December 31, 2015.</footnote>
        <footnote id="F3">Vesting of these options is time-based with 20% of the award vesting on July 1, 2016, 20% of the award vesting on July 1, 2017, 20% of the award vesting on July 1, 2018, 20% of the award vesting on July 1, 2019 and 20% of the ward vesting on July 1, 2020.  Shares reported are the remaining unvested and/or unexcercised option awards.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Sean D. Moore</signatureName>
        <signatureDate>2016-02-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
