Financing
Mortgage assumption
A mortgage assumption is a transaction in which a buyer or transferee takes over an existing mortgage obligation, subject to the loan documents and the lender or servicer’s conditions.
Glossary
Financing
What is a mortgage assumption?
Primary references on this page:
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HUD FHA Handbook: Mortgage AssumptionsThe assuming party generally takes the remaining balance, rate, and remaining term rather than originating a completely new first mortgage. The sale price minus the assumed balance still has to be funded. An assumption is not the same as a release of the seller: Fannie Mae’s servicing definition says the seller remains liable unless the lender or servicer releases that obligation.
How mortgage assumption works
Check the Loan Estimate, Closing Disclosure, note, security instrument, and any riders for the assumption language. Then contact the current servicer for written criteria, required documents, fees, timing, and whether the existing borrower will receive a written release of liability. Do not infer approval from a title transfer or private agreement.
Worked example
If a home sells for $400,000 and the assumable mortgage balance is $260,000, the buyer must address the $140,000 difference plus closing costs. Approval and any seller release still depend on the servicer and governing documents.
Common mistakes and review checks
Treat the result or document as one input to a decision. Verify the current source document, definitions, dates, and transaction facts before relying on it.
This is general educational information, not legal or tax advice. Rules vary by state and locality and change over time — check your local law and confirm specifics with a qualified professional.