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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 HKIhv+fw9gQQ7HvYeCg0IReE0rXiMLtdMQxLj9sfnyNaAPERtkNFaDNFu9pex4v6
 fxTbEyhN0/PLtF6fnttbJA==

<SEC-DOCUMENT>0001185463-03-000001.txt : 20030624
<SEC-HEADER>0001185463-03-000001.hdr.sgml : 20030624
<ACCEPTANCE-DATETIME>20030623200100
ACCESSION NUMBER:		0001185463-03-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030620
FILED AS OF DATE:		20030624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPADAFORA SAMUEL T
		CENTRAL INDEX KEY:			0001185463

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22227
		FILM NUMBER:		03754069

	MAIL ADDRESS:	
		STREET 1:		4125 HOPYARD RD
		CITY:			PLEASANTON
		STATE:			CA
		ZIP:			94588

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROBUSINESS SERVICES INC
		CENTRAL INDEX KEY:			0001028751
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				942976066
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4125 HOPYARD RD
		CITY:			PLEASANTON
		STATE:			CA
		ZIP:			94588
		BUSINESS PHONE:		9257373500

	MAIL ADDRESS:	
		STREET 1:		4125 HOPYARD RD
		CITY:			PLEASANTON
		STATE:			CA
		ZIP:			94588
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-06-20</periodOfReport><notSubjectToSection16>1</notSubjectToSection16>
    <issuer>
        <issuerCik>0001028751</issuerCik>
        <issuerName>PROBUSINESS SERVICES INC</issuerName>
        <issuerTradingSymbol>PRBZ</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId>
            <rptOwnerCik>0001185463</rptOwnerCik>
            <rptOwnerName>SPADAFORA SAMUEL T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeSecurity><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>14.38</value></conversionOrExercisePrice><transactionDate><value>2003-06-20</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>D</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>30000</value><footnoteId id="F1"/></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-06-20</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>2012-07-01</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></under
lyingSecurityTitle><underlyingSecurityShares><value>30000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>7.07</value></conversionOrExercisePrice><transactionDate><value>2003-06-20</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>D</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>10000</value><footnoteId id="F1"/></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>D</valu
e></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-06-20</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>2012-10-29</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">Pursuant to the terms of the Agreement and Plan of Merger, dated as of January 5, 2003, among Automatic Data Processing, Inc., a Delaware corporation (&amp;quot;ADP&amp;quot;), ADP Merger Corp, a Delaware corporation and an indirect wholly owned subsidiary of ADP and ProBusiness Services, Inc., a D
elaware corporation (&amp;quot;ProBusiness&amp;quot;) (the &amp;quot;Merger Agreement&amp;quot;),  at the effective time of the merger contemplated therein, each outstanding shares of ProBusiness common stock, except for certain limited exceptions, was converted into the right to receive $17.00 per share in cash, without interest.</footnote><footnote id="F2">On June 20, 2003, the effective time of the merger, each outstanding option to purchase shares of common stock, whether or not then vested or exercisable, was accelerated and became fully vested and exercisable as of such date.</footnote></footnotes><ownerSignature><signatureName>Samuel T. Spadafora</signatureName><signatureDate>2003-06-24</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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