<SUBMISSION>
<ACCESSION-NUMBER>0001179350-07-000085
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20071219
<FILING-DATE>20071219
<DATE-OF-FILING-DATE-CHANGE>20071219
<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>HAYNIE LOUIS M
<CIK>0000046344
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-50053
<FILM-NUMBER>071316011
</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>2007-12-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000046344</rptOwnerCik>
            <rptOwnerName>HAYNIE LOUIS M</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>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-12-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>426190</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-12-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4484</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.23</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>430674</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares disposed of via bona fide gift.</footnote>
        <footnote id="F2">Shares issued as part of annual director compensation.</footnote>
        <footnote id="F3">Closing price on November 30, 2007, per director compensation provisions.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Louis M. Haynie</signatureName>
        <signatureDate>2007-12-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
