<SEC-DOCUMENT>0001084961-17-000042.txt : 20170316
<SEC-HEADER>0001084961-17-000042.hdr.sgml : 20170316
<ACCEPTANCE-DATETIME>20170316184013
ACCESSION NUMBER:		0001084961-17-000042
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170314
FILED AS OF DATE:		20170316
DATE AS OF CHANGE:		20170316

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENCORE CAPITAL GROUP INC
		CENTRAL INDEX KEY:			0001084961
		STANDARD INDUSTRIAL CLASSIFICATION:	SHORT-TERM BUSINESS CREDIT INSTITUTIONS [6153]
		IRS NUMBER:				481090909
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3111 CAMINO DEL RIO NORTH
		STREET 2:		SUITE 103
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92108
		BUSINESS PHONE:		877-445-4581

	MAIL ADDRESS:	
		STREET 1:		3111 CAMINO DEL RIO NORTH
		STREET 2:		SUITE 103
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92108

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MCM CAPITAL GROUP INC
		DATE OF NAME CHANGE:	19990430

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MIDLAND CORP OF KANSAS
		DATE OF NAME CHANGE:	19990423

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Masih Ashish
		CENTRAL INDEX KEY:			0001578828

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26489
		FILM NUMBER:		17695960

	MAIL ADDRESS:	
		STREET 1:		C/O ENCORE CAPITAL GROUP, INC., STE 1300
		STREET 2:		3111 CAMINO DEL RIO NORTH
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92108
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_148970399946176.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-03-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001084961</issuerCik>
        <issuerName>ENCORE CAPITAL GROUP INC</issuerName>
        <issuerTradingSymbol>ECPG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001578828</rptOwnerCik>
            <rptOwnerName>Masih Ashish</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3111 CAMINO DEL RIO NORTH, SUITE 103</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, President MCM</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-03-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1017</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>84615</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 29, 2016. The reporting person intends to use the proceeds from the sale to pay taxes on restricted stock awards that vested on March 9, 2017.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Greg Call, Attorney-in-Fact for Ashish Masih</signatureName>
        <signatureDate>2017-03-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
