-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001209191-09-054091.txt : 20091123
<SEC-HEADER>0001209191-09-054091.hdr.sgml : 20091123
<ACCEPTANCE-DATETIME>20091123213728
ACCESSION NUMBER:		0001209191-09-054091
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091123
FILED AS OF DATE:		20091123
DATE AS OF CHANGE:		20091123

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DOUGLAS KEVIN
		CENTRAL INDEX KEY:			0001132859

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26427
		FILM NUMBER:		091203216

	MAIL ADDRESS:	
		STREET 1:		4040 CIVIC CENTER DRIVE
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94903

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STAMPS.COM INC
		CENTRAL INDEX KEY:			0001082923
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-CATALOG & MAIL-ORDER HOUSES [5961]
		IRS NUMBER:				770454966
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12959 CORAL TREE PLACE
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90066-7020
		BUSINESS PHONE:		3104825800

	MAIL ADDRESS:	
		STREET 1:		12959 CORAL TREE PLACE
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90066-7020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STAMPS COM INC
		DATE OF NAME CHANGE:	19990421

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DOUGLAS FAMILY TRUST
		CENTRAL INDEX KEY:			0001268474

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26427
		FILM NUMBER:		091203213

	BUSINESS ADDRESS:	
		STREET 1:		1101 FIFTH AVE.
		STREET 2:		SUITE 360
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94901
		BUSINESS PHONE:		4155262200

	MAIL ADDRESS:	
		STREET 1:		1101 FIFTH AVE
		STREET 2:		SUITE 360
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94901

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JAMES & JEAN DOUGLAS IRREVOCABLE DESCENDANTS TRUST
		CENTRAL INDEX KEY:			0001268475

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26427
		FILM NUMBER:		091203215

	BUSINESS ADDRESS:	
		STREET 1:		1101 FIFTH AVE.
		STREET 2:		SUITE 360
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94901
		BUSINESS PHONE:		4155262200

	MAIL ADDRESS:	
		STREET 1:		1101 FIFTH AVE
		STREET 2:		SUITE 360
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94901

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DOUGLAS JAMES E III
		CENTRAL INDEX KEY:			0001268476

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26427
		FILM NUMBER:		091203214

	MAIL ADDRESS:	
		STREET 1:		1101 FIFTH AVE
		STREET 2:		SUITE 360
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94901
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c93078_4x0.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-11-23</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001082923</issuerCik>
        <issuerName>STAMPS.COM INC</issuerName>
        <issuerTradingSymbol>STMP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001132859</rptOwnerCik>
            <rptOwnerName>DOUGLAS KEVIN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>125 E. SIR FRANCIS DRAKE BLVD., STE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LARKSPUR</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94939</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Member of 13(d)(3) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001268475</rptOwnerCik>
            <rptOwnerName>JAMES &amp; JEAN DOUGLAS IRREVOCABLE DESCENDANTS TRUST</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>125 E. SIR FRANCIS DRAKE BLVD., STE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LARKSPUR</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94939</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Member of 13(d)(3) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001268476</rptOwnerCik>
            <rptOwnerName>DOUGLAS JAMES E III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>125 E. SIR FRANCIS DRAKE BLVD., STE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LARKSPUR</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94939</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Member of 13(d)(3) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001268474</rptOwnerCik>
            <rptOwnerName>DOUGLAS FAMILY TRUST</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>125 E. SIR FRANCIS DRAKE BLVD., STE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LARKSPUR</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94939</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Member of 13(d)(3) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-11-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.4366</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>555591</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-11-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.4366</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>480277</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By James Douglas and Jean Douglas Irrevocable Descendants? Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-11-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6400</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.4366</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>504453</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By The Douglas Family Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-11-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>400</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.4366</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>29415</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F5"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By James E. Douglas III</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares are held directly and jointly by Kevin Douglas and his wife, Michelle Douglas.</footnote>
        <footnote id="F2">Each of the reporting persons hereunder (individually, a 'Reporting Person' and, collectively, the 'Reporting Persons') may be deemed a member of a 'group' within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended (the 'Exchange Act'), or Rule 13d-5 promulgated under the Exchange Act with one or more of the other Reporting Persons.  Although the Reporting Persons are reporting such securities as if they were members of  a 'group,' the filing of this Form 4 shall not be deemed an admission by any Reporting Person that such Reporting Person is a beneficial owner of any securities other than those directly held by such Reporting Person.</footnote>
        <footnote id="F3">These shares are held directly by the James Douglas and Jean Douglas Irrevocable Descendants' Trust and indirectly by Kevin Douglas.  Kevin Douglas and Michelle Douglas, husband and wife, are each a co-trustee of the James Douglas and Jean Douglas Irrevocable Descendants' Trust.</footnote>
        <footnote id="F4">shares are held directly by the Douglas Family Trust and indirectly by Kevin Douglas.  James E. Douglas, Jr. and Jean A. Douglas, husband and wife, are each a co-trustee of the Douglas Family Trust.</footnote>
        <footnote id="F5">These shares are held directly by James E. Douglas, III and indirectly by Kevin Douglas.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>KEVIN DOUGLAS, By: /s/ Tim McGaw, attorney in fact</signatureName>
        <signatureDate>2009-11-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>JAMES DOUGLAS AND JEAN DOUGLAS IRREVOCABLE DESCENDANTS? TRUST, By: /s/ Tim McGaw, attorney in fact</signatureName>
        <signatureDate>2009-11-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>JAMES E. DOUGLAS III, By: /s/ Tim McGaw, attorney in fact</signatureName>
        <signatureDate>2009-11-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>DOUGLAS FAMILY TRUST, By: /s/ Tim McGaw, attorney in fact</signatureName>
        <signatureDate>2009-11-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----