<SUBMISSION>
<ACCESSION-NUMBER>0001179350-07-000045
<TYPE>4/A
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20070316
<FILING-DATE>20070531
<DATE-OF-FILING-DATE-CHANGE>20070531
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>AMERITYRE CORP
<CIK>0000945828
<ASSIGNED-SIC>3011
<IRS-NUMBER>870535207
<STATE-OF-INCORPORATION>NV
<FISCAL-YEAR-END>0630
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>1501 INDUSTRIAL ROAD
<CITY>BOULDER CITY
<STATE>NV
<ZIP>89005
<PHONE>7022931930
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1501 INDUSTRIAL ROAD
<CITY>BOULDER CITY
<STATE>NV
<ZIP>89005
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>AMERICAN TIRE CORP
<DATE-CHANGED>19951117
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>STEINKE RICHARD A
<CIK>0001096335
<STATE-OF-INCORPORATION>NV
<FISCAL-YEAR-END>0630
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4/A
<ACT>34
<FILE-NUMBER>000-50053
<FILM-NUMBER>07890471
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>7022943870
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>AMERITYRE CORPORATION
<STREET2>1501 INDUSTRIAL ROAD
<CITY>BOULDER CITY
<STATE>NV
<ZIP>89005
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2007-03-16</periodOfReport>

    <dateOfOriginalSubmission>2007-03-20</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000945828</issuerCik>
        <issuerName>AMERITYRE CORP</issuerName>
        <issuerTradingSymbol>AMTY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001096335</rptOwnerCik>
            <rptOwnerName>STEINKE RICHARD A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>AMERITYRE CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1501 INDUSTRIAL ROAD</rptOwnerStreet2>
            <rptOwnerCity>BOULDER CITY</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-03-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.47</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>176000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1255000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See fn 2</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Warrants</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.5</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-03-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2850</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-03-16</value>
            </exerciseDate>
            <expirationDate>
                <value>2009-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2850</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2850</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeHolding>
            <securityTitle>
                <value>Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>6.6</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2006-06-30</value>
            </exerciseDate>
            <expirationDate>
                <value>2010-06-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Price has been adjusted from original filing.  Securities purchased in private placement of units at $17.89 per unit, each unit consisting of 4 shares of common stock and 2 warrants for the purchase of common stock exercisable for 2 years at $4.50 per share.</footnote>
        <footnote id="F2">Represents 455,000 shares held by Geminai Funding Services Profit Sharing Account of which reporting person is principal, and 800,000 shares held by S102 Irrevocable Trust of which reporting person is trustee.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Richard Steinke</signatureName>
        <signatureDate>2007-05-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
