-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 CRFGBs1i8BX1Jr/R5Bo1LaxVY7UV+8PvMwQmn3KoCUNK1GkWFoH9rv94ILFQx4VG
 Rec0P4rE5yCbT6Q2cDzn8Q==

<SEC-DOCUMENT>0001241517-06-000001.txt : 20060217
<SEC-HEADER>0001241517-06-000001.hdr.sgml : 20060217
<ACCEPTANCE-DATETIME>20060217165454
ACCESSION NUMBER:		0001241517-06-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060216
FILED AS OF DATE:		20060217
DATE AS OF CHANGE:		20060217

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTERNATIONAL MICROCOMPUTER SOFTWARE INC /CA/
		CENTRAL INDEX KEY:			0000814929
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				942862863
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		100 ROWLAND WAY
		STREET 2:		SUITE 300
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94945
		BUSINESS PHONE:		4158784000

	MAIL ADDRESS:	
		STREET 1:		100 ROWLAND WAY
		STREET 2:		SUITE 300
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94945

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LANDIES GORDON
		CENTRAL INDEX KEY:			0001241517

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-15949
		FILM NUMBER:		06629955

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		4158784000

	MAIL ADDRESS:	
		STREET 1:		100 ROWLAND WAY
		STREET 2:		SUITE 300
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94945
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-02-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000814929</issuerCik>
        <issuerName>INTERNATIONAL MICROCOMPUTER SOFTWARE INC /CA/</issuerName>
        <issuerTradingSymbol>IMSI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001241517</rptOwnerCik>
            <rptOwnerName>LANDIES GORDON</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 ROWLAND WAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>NOVATO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94945</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-02-16</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2006-02-16</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>67681</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.03</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>67319</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Owned by the Barbara Landies Living Trust, Gordon Landies Trustee</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Commonon Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-02-17</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2006-02-17</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7319</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.02</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>60000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Owned by Barbara Landies Living Trust, Gordon Landies Trustee</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/S/ Gordon Landies</signatureName>
        <signatureDate>2006-02-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----