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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 ScUkzqv4f3tiK2s1Wdc/OnwjT8fqy33Kzm02Zb8mHoLHHo6dzCtbLaFYDWnrn0aa
 mGgte7x+NpuBGnYv3ZxQcA==

<SEC-DOCUMENT>0000814585-07-000094.txt : 20071003
<SEC-HEADER>0000814585-07-000094.hdr.sgml : 20071003
<ACCEPTANCE-DATETIME>20071003114317
ACCESSION NUMBER:		0000814585-07-000094
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071001
FILED AS OF DATE:		20071003
DATE AS OF CHANGE:		20071003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Walker Richard H
		CENTRAL INDEX KEY:			0001376019

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09583
		FILM NUMBER:		071152411

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		914-765-3929

	MAIL ADDRESS:	
		STREET 1:		C/O MBIA
		STREET 2:		113 KING STREET
		CITY:			ARMONK
		STATE:			NY
		ZIP:			10504

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MBIA INC
		CENTRAL INDEX KEY:			0000814585
		STANDARD INDUSTRIAL CLASSIFICATION:	SURETY INSURANCE [6351]
		IRS NUMBER:				061185706
		STATE OF INCORPORATION:			CT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		113 KING ST
		CITY:			ARMONK
		STATE:			NY
		ZIP:			10504
		BUSINESS PHONE:		914-273-4545

	MAIL ADDRESS:	
		STREET 1:		113 KING ST
		CITY:			ARMONK
		STATE:			NY
		ZIP:			10504
</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>2007-10-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000814585</issuerCik>
        <issuerName>MBIA INC</issuerName>
        <issuerTradingSymbol>MBI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001376019</rptOwnerCik>
            <rptOwnerName>Walker Richard H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MBIA</rptOwnerStreet1>
            <rptOwnerStreet2>113 KING STREET</rptOwnerStreet2>
            <rptOwnerCity>ARMONK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10504</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Hypothetical Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>63.4</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>252.366</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>63.4</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>252.366</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1322.44</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Contributions credited to units acquired under Directors Deferred Compensation Plan for Retainer and Meeting Fees.</footnote>
        <footnote id="F2">Exercisable and expiration dates of units is date of termination of Reporting Person's status as Director which triggers payment.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Leonard I. Chubinsky, Attorney-in-Fact</signatureName>
        <signatureDate>2007-10-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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