-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 DpT6sylPAvtsbzPftahZq2uceFD8nu22PcSSOfXdDv9BfLlZ7032sCZuHNxEuZxi
 0E1pJx/wGgS122ya/b493w==

<SEC-DOCUMENT>0001181431-07-015708.txt : 20070301
<SEC-HEADER>0001181431-07-015708.hdr.sgml : 20070301
<ACCEPTANCE-DATETIME>20070301121600
ACCESSION NUMBER:		0001181431-07-015708
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070227
FILED AS OF DATE:		20070301
DATE AS OF CHANGE:		20070301

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTERNATIONAL BUSINESS MACHINES CORP
		CENTRAL INDEX KEY:			0000051143
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER & OFFICE EQUIPMENT [3570]
		IRS NUMBER:				130871985
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 NEW ORCHARD ROAD
		CITY:			ARMONK
		STATE:			NY
		ZIP:			10504
		BUSINESS PHONE:		9144991900

	MAIL ADDRESS:	
		STREET 1:		1 NEW ORCHARD RD
		CITY:			ARMONK
		STATE:			NY
		ZIP:			10504

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SANFORD LINDA S
		CENTRAL INDEX KEY:			0001068020

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-02360
		FILM NUMBER:		07661537

	BUSINESS ADDRESS:	
		STREET 1:		IBM CORP
		STREET 2:		ROUTE 100
		CITY:			SOMERS
		STATE:			NY
		ZIP:			10589
		BUSINESS PHONE:		914-765-4314

	MAIL ADDRESS:	
		STREET 1:		IBM CORPORATION
		STREET 2:		294 ROUTE 100
		CITY:			SOMERS
		STATE:			NY
		ZIP:			10589
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd149342.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-02-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000051143</issuerCik>
        <issuerName>INTERNATIONAL BUSINESS MACHINES CORP</issuerName>
        <issuerTradingSymbol>IBM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001068020</rptOwnerCik>
            <rptOwnerName>SANFORD LINDA S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>IBM CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>294 ROUTE 100</rptOwnerStreet2>
            <rptOwnerCity>SOMERS</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10589</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Rst. Stock Unit</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-02-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10990</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10990</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10990</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These units are payable in cash or the company's common stock upon the lapse of the restrictions on 02/27/2012.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>D. Cummins for L. S. Sanford by power-of-attorney</signatureName>
        <signatureDate>2007-03-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----