<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType><periodOfReport>2003-08-07</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001109190</issuerCik>
        <issuerName>EFUNDS CORP</issuerName>
        <issuerTradingSymbol>EFDS</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001258879</rptOwnerCik>
            <rptOwnerName>LANGSTAFF MICHELE J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8501 N. SCOTTSDALE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>SCOTTSDALE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85253</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>SVP, Human Resources</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeHolding><securityTitle><value>Options (right to buy)</value></securityTitle><conversionOrExercisePrice><footnoteId id="F1" /></conversionOrExercisePrice><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><footnoteId id="F1" /></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>60000</value></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">Options were granted under the Company's Stock Incentive Plan on August 6, 2003 (60,000 shares @ $11.25 per share).  The option has a term of ten years from the date of grant.  One-third of the option vests and becomes exercisable on each of the three succeeding anniversaries of the date of grant if, subject to certain exceptions, the holder continues to provide services to the Company through the applicable vesting date.  The vesting of the option is subject to acceleration upon the approved retirement of the holder, the death or disability of the holder and any change in control of the Company.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Michele J. Langstaff
by Steven F. Coleman</signatureName><signatureDate>2003-08-08</signatureDate></ownerSignature></ownershipDocument>

