<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-12-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001750153</issuerCik>
        <issuerName>Canoo Inc.</issuerName>
        <issuerTradingSymbol>GOEV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001399053</rptOwnerCik>
            <rptOwnerName>Aquila Tony</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CANOO INC.</rptOwnerStreet1>
            <rptOwnerStreet2>19951 MARINER AVE.</rptOwnerStreet2>
            <rptOwnerCity>TORRANCE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90503</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Chairman</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-12-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8859387</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8859387</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By LLC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-12-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3500000</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12359387</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By LLC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>35000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Received pursuant to the Merger Agreement and Plan of Reorganization, dated as of August 17, 2020, by and among Hennessy Capital Acquisition Corp. IV (&quot;Hennessy Capital&quot;), HCAC IV First Merger Sub, Ltd., a direct, wholly-owned subsidiary of Hennessy Capital (&quot;First Merger Sub&quot;), HCAC IV Second Merger Sub, LLC, a direct, wholly-owned subsidiary of Hennessy Capital (&quot;Second Merger Sub&quot;), and Canoo Holdings Ltd. (&quot;Legacy Canoo&quot;) pursuant to which, through a series of mergers between Legacy Canoo, First Merger Sub, and Second Merger Sub,
Legacy Canoo became a direct, wholly-owned subsidiary of Hennessy Capital, which subsequently changed its name to Canoo Inc. (the &quot;Issuer&quot;).  The transactions contemplated by the Merger Agreement are referred to herein as the &quot;Business Combination.&quot;</footnote>
        <footnote id="F2">Shares are held directly by AFV Partners SPV-4 LLC (&quot;AFV 4&quot;).  Reporting Person is the Chairman and CEO of AFV Partners LLC which exercises ultimate voting and investment power with respect to the shares held by AFV 4.  The Reporting Person disclaims beneficial ownership of the shares held by AFV 4 except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">As previously disclosed, on August 17, 2020, the Issuer entered into subscription agreements (the &quot;Subscription Agreements&quot;) with certain investors (the &quot;PIPE investors&quot;) pursuant to which such investors agreed to purchase, immediately prior to the closing of the Business Combination, an aggregate of $323,250,000,000 of the Issuer's shares of Common Stock at a price of $10.00 per share, or an aggregate of 32,325,000 shares of Common Stock. AFV 4 is among the PIPE Investors.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Tony Aquila, by /s/ Ron A. Metzger, Attorney-in-Fact</signatureName>
        <signatureDate>2020-12-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
