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

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001661927</cik>
        <entityName>Mascoma Mutual Financial Services Corp</entityName>
        <issuerAddress>
            <street1>67 NORTH PARK STREET</street1>
            <city>LEBANON</city>
            <stateOrCountry>NH</stateOrCountry>
            <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
            <zipCode>03766</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>603-448-3650</issuerPhoneNumber>
        <jurisdictionOfInc>NEW HAMPSHIRE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Clayton</firstName>
                <middleName>R.</middleName>
                <lastName>Adams</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Catherine</firstName>
                <lastName>Richmond</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Liz</firstName>
                <lastName>Miller</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Deirdre</firstName>
                <lastName>Goodrich</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Timothy</firstName>
                <lastName>Briglin</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Susan</firstName>
                <lastName>Mooney</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mohamed</firstName>
                <lastName>Basha</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Michael</firstName>
                <lastName>Cahoon</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeff</firstName>
                <lastName>Chu</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lisa</firstName>
                <lastName>Groeneveld</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Merritt</firstName>
                <lastName>Patridge</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Phil</firstName>
                <lastName>Lapp</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Mascoma Mutual Financial Services Co</street1>
                <street2>67 N Park St</street2>
                <city>Lebanon</city>
                <stateOrCountry>NH</stateOrCountry>
                <stateOrCountryDescription>NEW HAMPSHIRE</stateOrCountryDescription>
                <zipCode>03766</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Commercial Banking</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2026-09-25</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Performance Trust Capital Partners, LLC</recipientName>
                <recipientCRDNumber>36155</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>500 W. Madison</street1>
                    <street2>Suite 450</street2>
                    <city>Chicago</city>
                    <stateOrCountry>IL</stateOrCountry>
                    <stateOrCountryDescription>ILLINOIS</stateOrCountryDescription>
                    <zipCode>60661</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>ME</state>
                    <description>MAINE</description>
                    <state>MA</state>
                    <description>MASSACHUSETTS</description>
                    <state>MN</state>
                    <description>MINNESOTA</description>
                    <state>NH</state>
                    <description>NEW HAMPSHIRE</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>NC</state>
                    <description>NORTH CAROLINA</description>
                    <state>OH</state>
                    <description>OHIO</description>
                    <state>PA</state>
                    <description>PENNSYLVANIA</description>
                    <state>RI</state>
                    <description>RHODE ISLAND</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>35000000</totalOfferingAmount>
            <totalAmountSold>35000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>25</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>612500</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Mascoma Mutual Financial Services Corp</issuerName>
                <signatureName>/s/ James Williams</signatureName>
                <nameOfSigner>James Williams</nameOfSigner>
                <signatureTitle>CFO</signatureTitle>
                <signatureDate>2026-10-01</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
