Last updated: October 5, 2026 · Rates in the example are illustrations, not quotes.
When current mortgage rates are far above the rates many homeowners locked in years ago, an assumable mortgage can be a powerful deal: the buyer takes over the seller’s existing loan, including its low interest rate. Here is how it works, which loans qualify and how to handle the equity gap.
What makes a mortgage assumable
- FHA loans: generally assumable by a creditworthy buyer with lender approval.
- VA loans: assumable, including by non-veterans, with lender approval; see the entitlement note below.
- USDA loans: generally assumable with approval, subject to program eligibility.
- Conventional loans: usually not assumable because of a due-on-sale clause, with limited exceptions such as transfers after death or divorce.
Example: assuming a 3% loan
A seller took a $300,000, 30-year loan at 3% five years ago. The payment is $1,264.81 and the balance is $266,719, with 25 years left. You agree to buy the home for $400,000.
The equity gap is $400,000 − $266,719 = $133,281. You pay $40,000 in cash and finance the remaining $93,281 with a 15-year second loan at an example rate of 8.5%.
| Assume + second loan | New loan, 10% down, 6.5% | |
|---|---|---|
| Monthly P&I | $2,183.39 ($1,264.81 + $918.57) | $2,275.44 |
| Interest over the next 10 years | $129,930 | $218,247 |
| Debt left after 10 years | $227,924 | $305,194 |
Even with a higher-rate second loan to cover the gap, assuming the 3% mortgage saves about $88,317 in interest over 10 years and leaves about $77,270 less debt. With less equity to cover, the savings would be even larger.
The catches
- The equity gap often requires substantial cash or a second loan at a higher rate. See second mortgages explained.
- Approval takes time; servicers process assumptions more slowly than new loans, so build that into your contract timeline.
- You inherit the loan’s terms, including FHA mortgage insurance rules; see FHA vs. conventional.
- Assumption fees apply and vary by loan type and servicer.
For sellers with a VA loan
If a non-veteran assumes your VA loan, your VA entitlement generally remains tied to that loan until it is paid off. That can limit your ability to use a VA loan again. If the buyer is an eligible veteran, they may substitute their entitlement so yours is restored. See VA loans explained.
How to find and assume a loan
- Ask listing agents whether the seller has an FHA, VA or USDA loan and its rate.
- Confirm the balance, rate and remaining term in writing.
- Contact the servicer early to start the assumption application.
- Plan how you will cover the equity gap and compare it with a new loan.
Compare payments in our mortgage calculator and see what a higher rate costs over time.
Frequently asked questions
Which mortgages are assumable?
FHA, VA and USDA loans are generally assumable by a qualified buyer with lender approval. Most conventional loans are not, because they contain a due-on-sale clause.
Do I need to qualify to assume a mortgage?
Usually yes. The servicer reviews the buyer’s credit, income and debts much like a new loan application, and must approve the assumption.
How do I pay the seller’s equity when assuming a loan?
You pay the difference between the purchase price and the loan balance, either in cash or with a second loan. That gap can be large if the seller has built significant equity.
What happens to a veteran’s entitlement if their VA loan is assumed?
Unless the buyer is an eligible veteran who substitutes their own entitlement, the seller’s VA entitlement stays tied to the loan until it is paid off, which can limit the seller’s future VA borrowing.
Sources: CFPB: Buying a House; VA home loans; HUD. Example calculations by ToolStackIA.
This article is for educational purposes only and is not financial advice. Loan programs, rates and rules change; confirm details with your lender or a HUD-approved housing counselor.