<SEC-DOCUMENT>0001209191-21-010243.txt : 20210212
<SEC-HEADER>0001209191-21-010243.hdr.sgml : 20210212
<ACCEPTANCE-DATETIME>20210212171728
ACCESSION NUMBER:		0001209191-21-010243
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200501
FILED AS OF DATE:		20210212
DATE AS OF CHANGE:		20210212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOONEY KEVIN W
		CENTRAL INDEX KEY:			0001180692

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50600
		FILM NUMBER:		21629691

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKBAUD INC
		CENTRAL INDEX KEY:			0001280058
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				112617163
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		65 FAIRCHILD STREET
		CITY:			CHARLESTON
		STATE:			SC
		ZIP:			29492
		BUSINESS PHONE:		843-216-6200

	MAIL ADDRESS:	
		STREET 1:		65 FAIRCHILD STREET
		CITY:			CHARLESTON
		STATE:			SC
		ZIP:			29492
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-05-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001280058</issuerCik>
        <issuerName>BLACKBAUD INC</issuerName>
        <issuerTradingSymbol>BLKB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001180692</rptOwnerCik>
            <rptOwnerName>MOONEY KEVIN W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>65 FAIRCHILD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHARLESTON</rptOwnerCity>
            <rptOwnerState>SC</rptOwnerState>
            <rptOwnerZipCode>29492</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, Pres Gen Markets Group</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-05-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>270</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>84245</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2021-02-10</value>
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                <transactionFormType>4</transactionFormType>
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                    <value>100537</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2021-02-10</value>
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                <transactionFormType>4</transactionFormType>
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                <value></value>
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                <transactionShares>
                    <value>6947</value>
                    <footnoteId id="F3"/>
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                <transactionPricePerShare>
                    <value>0.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>107484</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-02-12</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <value></value>
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                    <value>14875</value>
                    <footnoteId id="F4"/>
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                    <value>0.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>122359</value>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents restricted stock units granted on May 1, 2020 that will vest in full on May 1, 2021, subject to continued employment.</footnote>
        <footnote id="F2">Represents a restricted stock award which vests in four equal annual installments beginning on February 10, 2022, subject to continued employment.</footnote>
        <footnote id="F3">The Compensation Committee determined that performance restricted stock awards granted in 2020 would vest in full on May 1, 2021 based on the Issuer achieving performance goals for the period ended December 31, 2020, subject to continued employment.</footnote>
        <footnote id="F4">The Compensation Committee determined that performance restricted stock units granted in 2020 would vest in three equal annual installments beginning on February 12, 2021 based on the Issuer achieving performance goals for the period ended December 31, 2020.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Donald R. Reynolds, Attorney-in-Fact</signatureName>
        <signatureDate>2021-02-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
