Short answer: assuming a mortgage means a new borrower takes over the seller’s existing loan, with its rate and remaining balance, instead of getting a new loan. Whether a loan may be assumed depends on the loan contract and the lender. Your Loan Estimate and Closing Disclosure each have an “Assumption” line that says whether a later buyer may be allowed to take over the loan. Federal law also limits when a lender may call a home loan due because the home changed hands. This page covers federal law only; other rules may apply where you live. It is general information, not legal or financial advice.
The “Assumption” line on your disclosures
The Loan Estimate must say whether a later buyer of the property may be permitted to assume the remaining loan on its original terms, under the label “Assumption” (12 CFR 1026.37(m)(2), eCFR, text up to date as of October 28, 2026, read October 30, 2026). The Closing Disclosure repeats it under “Loan Disclosures” (12 CFR 1026.38(l)(1), eCFR).
The official comments say a lender that can determine an assumption is not permitted discloses that the loan is not assumable. In all other cases, including when an assumption depends on conditions such as the new borrower’s credit or when the future is uncertain, it discloses that it may allow an assumption under certain conditions. An assumption fee is not a change from the original terms, but a change such as a new interest rate is (Supplement I, comments 37(m)(2)-1 and -2, eCFR). For more on the Loan Estimate, see Loan Estimate closing cost limits.
When an assumption is a new transaction
Under Regulation Z, an assumption occurs “when a creditor expressly agrees in writing with a subsequent consumer to accept that consumer as a primary obligor on an existing residential mortgage transaction”. Before it happens, the lender must give the new borrower new disclosures based on the remaining obligation (12 CFR 1026.20(b), eCFR). The official comments say (comments 20(b)-1, -3, -4 and -5):
- All three elements are needed: a residential mortgage transaction, the lender’s express acceptance of the new borrower, and a written agreement.
- Checking the new person’s credit, changing the records, mailing them a coupon book or taking their payments is not, by itself, an express agreement.
- The original borrower may stay on the loan in some role, as long as the new borrower becomes a primary obligor; just adding a guarantor is not an assumption.
- The rule applies only when one consumer takes over from another consumer.
Example: the gap between price and balance
This example is only for the math, with example figures, not terms for any loan or home.
| Item | Amount |
|---|---|
| Example sale price | $340,000 |
| Remaining balance on the loan being assumed | $240,000 |
| Amount the buyer must cover another way: $340,000 - $240,000 | $100,000 |
The buyer would pay the gap with cash or other financing. Ask the lender what fees and conditions apply to the assumption, and whether the seller will be released from the loan.
Due-on-sale clauses
A due-on-sale clause lets a lender declare the whole loan due if the property is sold or transferred without its written consent. Federal law lets lenders enforce these clauses under the loan contract (12 U.S.C. 1701j-3(b), LII). For how a lender may call a loan due, see loan acceleration clause.
Transfers that cannot trigger due-on-sale
For a loan on a home with fewer than five units (including a co-op unit or a manufactured home), a lender may not use a due-on-sale clause because of these transfers (12 U.S.C. 1701j-3(d)):
| Transfer | Paragraph |
|---|---|
| A junior lien or other encumbrance that does not transfer the right to live in the home | (d)(1) |
| A purchase money security interest for household appliances | (d)(2) |
| A transfer by will, inheritance or by law on the death of a joint tenant or tenant by the entirety | (d)(3) |
| A lease of three years or less with no option to buy | (d)(4) |
| A transfer to a relative because the borrower died | (d)(5) |
| A transfer in which the borrower’s spouse or children become an owner | (d)(6) |
| A transfer to a spouse under a divorce decree, legal separation agreement or property settlement agreement | (d)(7) |
| A transfer into a living trust in which the borrower is and remains a beneficiary, with no transfer of the right to live in the home | (d)(8) |
The federal regulation adds conditions. For a home occupied or to be occupied by the borrower, the transfers to a relative, to a spouse or children, and under a divorce apply when the person receiving the home lives or will live there, and the living trust transfer applies when the borrower remains the beneficiary and occupant (12 CFR 191.5(b)(1), eCFR). For your own transfer, ask a lawyer.
Inheriting a home with a mortgage
The CFPB says that if you already have title to the house, its rules do not require the lender or servicer to determine your ability to repay before letting you take over the mortgage (CFPB, last reviewed February 2, 2024, read October 30, 2026; this page may be out of date). See inheriting a home with a mortgage for the servicer rules that apply to heirs. You can look for legal aid through the Legal Services Corporation, and submit a complaint at consumerfinance.gov/complaint.
Questions to ask the lender or servicer
- Does the loan contract allow an assumption, and on what conditions?
- What fee do you charge for an assumption?
- Will the rate, payment and remaining term stay the same?
- Will the seller be released from liability in writing?
- Which documents do you need, and how long does your review take?
Checklist
- Read the “Assumption” line on the Loan Estimate and Closing Disclosure.
- An assumption needs the lender’s express written acceptance of the new borrower.
- The new borrower gets new disclosures before the assumption.
- Plan how to cover the gap between price and loan balance.
- Some family and trust transfers cannot trigger a due-on-sale clause.
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Sources
- eCFR: 12 CFR 1026.37, Content of disclosures for certain mortgage transactions (Loan Estimate) (Regulation Z), current text up to date as of October 28, 2026
- eCFR: 12 CFR 1026.38, Content of disclosures for certain mortgage transactions (Closing Disclosure) (Regulation Z), current text up to date as of October 28, 2026
- eCFR: 12 CFR 1026.20, Disclosure requirements regarding post-consummation events (Regulation Z), current text up to date as of October 28, 2026
- eCFR: Supplement I to Part 1026, Official Interpretations (Regulation Z), current text up to date as of October 28, 2026
- Cornell LII: 12 U.S. Code 1701j-3, Preemption of due-on-sale prohibitions
- eCFR: 12 CFR 191.5, Limitation on exercise of due-on-sale clauses, current text up to date as of October 28, 2026
- CFPB: I recently inherited a house. The mortgage lender said it’s required to determine my “ability to repay” before it will let me take over the mortgage loan. Is this true? (last reviewed February 2, 2024)
- CFPB: Submit a complaint
- Legal Services Corporation: Find legal aid
Disclosure: Modern Lending Solutions is not a lender, loan broker or agent for any lender or loan broker, and does not make credit decisions. Any compensation we receive is paid by participating lenders, only for advertising services. This guide is general information, not financial or legal advice.