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

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001754625</cik>
        <entityName>Defer Gain Fund I, LP</entityName>
        <issuerAddress>
            <street1>7144 E. STETSON DRIVE, SUITE 300</street1>
            <street2>C/O ROSE LAW GROUP</street2>
            <city>SCOTTSDALE</city>
            <stateOrCountry>AZ</stateOrCountry>
            <stateOrCountryDescription>ARIZONA</stateOrCountryDescription>
            <zipCode>85251</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>4802405585</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2018</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Michael</firstName>
                <lastName>Lafferty</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3800 E. Lincoln Drive</street1>
                <street2>#24</street2>
                <city>Phoenix</city>
                <stateOrCountry>AZ</stateOrCountry>
                <stateOrCountryDescription>ARIZONA</stateOrCountryDescription>
                <zipCode>85018</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Lafferty is an executive officer of a subsidiary of the general partner of Defer Gain Fund I, LP.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jay</firstName>
                <lastName>Gold</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1101 West Northern</street1>
                <city>Phoenix</city>
                <stateOrCountry>AZ</stateOrCountry>
                <stateOrCountryDescription>ARIZONA</stateOrCountryDescription>
                <zipCode>85021</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Gold is an executive officer of a subsidiary of the general partner of Defer Gain Fund I, LP.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Scott</firstName>
                <lastName>Tonn</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>5635 N Scottsdale Rd.</street1>
                <street2>Ste 170</street2>
                <city>Scottsdale</city>
                <stateOrCountry>AZ</stateOrCountry>
                <stateOrCountryDescription>ARIZONA</stateOrCountryDescription>
                <zipCode>85250</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Tonn is an executive officer of a subsidiary of the general partner of Defer Gain Fund I, LP.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joshua</firstName>
                <lastName>Duke</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>5635 N Scottsdale Rd.</street1>
                <street2>Ste 170</street2>
                <city>Scottsdale</city>
                <stateOrCountry>AZ</stateOrCountry>
                <stateOrCountryDescription>ARIZONA</stateOrCountryDescription>
                <zipCode>85250</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Duke is an executive officer of a subsidiary of the general partner of Defer Gain Fund I, LP.</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Investing</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>No Revenues</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06c</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001754625-18-000012</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <yetToOccur>true</yetToOccur>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>250000</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>CABIN SECURITIES, INC.</recipientName>
                <recipientCRDNumber>137608</recipientCRDNumber>
                <associatedBDName>CABIN SECURITIES, INC.</associatedBDName>
                <associatedBDCRDNumber>137608</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>6240 W. 135th Street</street1>
                    <street2>Suite 214</street2>
                    <city>Overland Park</city>
                    <stateOrCountry>KS</stateOrCountry>
                    <stateOrCountryDescription>KANSAS</stateOrCountryDescription>
                    <zipCode>66223</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>AL</state>
                    <description>ALABAMA</description>
                    <state>AZ</state>
                    <description>ARIZONA</description>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>CO</state>
                    <description>COLORADO</description>
                    <state>CT</state>
                    <description>CONNECTICUT</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>GA</state>
                    <description>GEORGIA</description>
                    <state>IL</state>
                    <description>ILLINOIS</description>
                    <state>IA</state>
                    <description>IOWA</description>
                    <state>KS</state>
                    <description>KANSAS</description>
                    <state>LA</state>
                    <description>LOUISIANA</description>
                    <state>MI</state>
                    <description>MICHIGAN</description>
                    <state>MN</state>
                    <description>MINNESOTA</description>
                    <state>MO</state>
                    <description>MISSOURI</description>
                    <state>NE</state>
                    <description>NEBRASKA</description>
                    <state>NV</state>
                    <description>NEVADA</description>
                    <state>NJ</state>
                    <description>NEW JERSEY</description>
                    <state>NM</state>
                    <description>NEW MEXICO</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>NC</state>
                    <description>NORTH CAROLINA</description>
                    <state>ND</state>
                    <description>NORTH DAKOTA</description>
                    <state>OH</state>
                    <description>OHIO</description>
                    <state>OK</state>
                    <description>OKLAHOMA</description>
                    <state>OR</state>
                    <description>OREGON</description>
                    <state>PA</state>
                    <description>PENNSYLVANIA</description>
                    <state>RI</state>
                    <description>RHODE ISLAND</description>
                    <state>SC</state>
                    <description>SOUTH CAROLINA</description>
                    <state>SD</state>
                    <description>SOUTH DAKOTA</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                    <state>VA</state>
                    <description>VIRGINIA</description>
                    <state>WA</state>
                    <description>WASHINGTON</description>
                    <state>WY</state>
                    <description>WYOMING</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>30000000</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>30000000</totalRemaining>
            <clarificationOfResponse>The Fund is targeting $30 million in aggregate limited partner capital commitments, which may be increased to $75 million.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>0</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>The Fund will pay the asset manager, of which the related persons' entities are members, a fee of 3% per annum. If the Fund is funded, the total fees would be 900,000/year. The fee decreases proportionally to distributions.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Defer Gain Fund I, LP</issuerName>
                <signatureName>Daniel Gauthier</signatureName>
                <nameOfSigner>Daniel Gauthier</nameOfSigner>
                <signatureTitle>Attorney</signatureTitle>
                <signatureDate>2018-11-15</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
