<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-07-20</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001839439</issuerCik>
        <issuerName>PAYCOR HCM, INC.</issuerName>
        <issuerTradingSymbol>PYCR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001777951</rptOwnerCik>
            <rptOwnerName>Pride Aggregator, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O APAX PARTNERS, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>601 LEXINGTON AVENUE, 53RD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001861008</rptOwnerCik>
            <rptOwnerName>APAX IX GP CO. Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>THIRD FLOOR ROYAL BANK PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>1 GLATEGNY ESPLANADE</rptOwnerStreet2>
            <rptOwnerCity>ST PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>GY1 2HJ</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001860993</rptOwnerCik>
            <rptOwnerName>PRIDE GP, INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O APAX PARTNERS, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>601 LEXINGTON AVENUE, 53RD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.001 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>93000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Does not give effect to 1,517.18-for-1 stock split which the Issuer expects to effect in connection with the closing of its initial public offering on July 23, 2021. After giving effect to such split, the reporting persons would beneficially own 141,097,740 shares of Issuer common stock.</footnote>
        <footnote id="F2">Pride GP, Inc. is the general partner of Pride Aggregator and Apax IX GP Co. Limited (&quot;Apax IX GP&quot;) is the sole shareholder of Pride GP, Inc.</footnote>
        <footnote id="F3">Apax IX GP is the investment manager of the relevant investment vehicles in the fund known as Apax IX and is controlled by a board of directors consisting of Simon Cresswell, Andrew Guille, Martin Halusa, Paul Meader and David Staples. The registered address for Apax IX is Third Floor Royal Bank Place, 1 Glategny Esplanade, St Peter Port, Guernsey GY1 2HJ.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jason Wright, Director of Pride GP, Inc., the general partner of Pride Aggregator L.P.</signatureName>
        <signatureDate>2021-07-20</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jason Wright, Director of Pride GP, Inc.</signatureName>
        <signatureDate>2021-07-20</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Andrew Guille, Director of Apax IX GP Co. Limited</signatureName>
        <signatureDate>2021-07-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
