<SUBMISSION>
<ACCESSION-NUMBER>0001179350-05-000052
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050801
<FILING-DATE>20050802
<DATE-OF-FILING-DATE-CHANGE>20050802
<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
<ACT>34
<FILE-NUMBER>000-50053
<FILM-NUMBER>05991132
</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
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-08-01</periodOfReport>

    <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>2005-08-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>30300</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.6</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>170300</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 footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Annual stock award pursuant to employment agreement approved by resolution of board of directors</footnote>
        <footnote id="F2">Closing market price on July 8, 2005</footnote>
        <footnote id="F3">Represents 455,000 shares held by Gemini Funding Services Profit Sharing Account of which the reporting person is the principal, and 800,000 shares held by S102 Irrevocable Trust of which the reporting person is the trustee</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Richard A. Steinke</signatureName>
        <signatureDate>2005-08-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
