How Assumable Mortgages Work and When They’re Allowed

An assumable mortgage lets a buyer step into the seller’s existing home loan, keeping the original interest rate, remaining balance, and repayment schedule in place. When today’s market rates are well above the rate the seller locked in, assumable mortgages can save a buyer tens of thousands of dollars over the life of the loan. The catch: only certain loans qualify, the lender’s servicer has to approve the new borrower, and the buyer usually needs a large pile of cash to cover the equity the seller has built up.

Which Loans Can Be Assumed

Government-backed loans are where almost all assumption activity happens. Conventional mortgages typically block the transfer through a due-on-sale clause, which lets the lender demand the full balance if the property changes hands without written consent.¹ A handful of older adjustable-rate conventional loans include assumability provisions, but they are uncommon and still require lender consent.

FHA Loans

Every FHA-insured mortgage is assumable. For loans closed on or after December 15, 1989, the servicer must run a full creditworthiness review of the buyer, and that requirement never goes away over the life of the loan.² Virtually every FHA loan still active today falls under that rule, so plan on going through the full underwriting process.

VA Loans

VA-guaranteed loans are assumable, and the buyer does not have to be a veteran. The wrinkle is entitlement. If an eligible veteran assumes the loan and substitutes their own entitlement, the seller’s VA entitlement is restored and can be used again right away. If the buyer is not a veteran, the seller’s entitlement stays tied to the property until the loan is paid off, meaning the seller cannot use VA financing for another home in the meantime.³

USDA Loans

USDA Section 502 direct loans can be assumed on one of two tracks. A program assumption applies when both the buyer and the property still meet Section 502 eligibility, including income limits and rural area designation. In that case, the loan is reamortized at current program rates and terms, and the buyer may qualify for an additional USDA loan to cover a gap between the balance and the purchase price. A non-program assumption applies when the buyer or property no longer qualifies. The interest rate is typically higher than the program rate, and no further USDA credit is available.⁴

Transfers That Don’t Count as a Sale

Mortgage assumption questions often come up during life events rather than ordinary home sales, and federal law protects several of those situations. Under the Garn-St. Germain Act, a lender cannot enforce a due-on-sale clause when a residential property with fewer than five units is transferred in any of the following ways:

To a relative after the borrower’s death, or automatically between joint tenants or tenants by the entirety when one dies.
To a spouse or child added as an owner, whether or not the borrower has died.
To a spouse or ex-spouse under a divorce decree, legal separation, or property settlement agreement.
Into a revocable living trust where the borrower remains a beneficiary and continues to occupy the home.
Through a subordinate lien, such as a second mortgage or home equity loan, as long as occupancy rights don’t transfer.

In these transfers, the loan terms stay the same and the lender has no legal right to call the balance due.¹ USDA loans follow a nearly identical list of protected transfers, allowing same-rate-and-terms assumptions for spouses, children, relatives after death, ex-spouses under divorce decrees, and living trusts.⁴

What You Need to Qualify as the Buyer

For FHA and VA loans, the servicer reviews the buyer much like a standard mortgage application. Expect to provide two years of W-2s, pay stubs, tax returns, bank statements showing liquid assets, and an authorization to pull a credit report.

A common misconception is that federal agencies set a specific minimum credit score for assumptions. The VA does not impose any minimum score at all, and the FHA handbook explicitly excludes assumptions from the standard minimum decision credit score requirements that apply to new FHA originations.⁵ In practice, servicers set their own thresholds, often in the upper 500s to low 600s.

Debt-to-income ratio matters as much as credit score. The servicer adds the assumed mortgage payment to the buyer’s existing monthly debts and compares that total to gross monthly income. General FHA underwriting treats 43 percent as a standard threshold, though higher ratios can be approved with compensating factors like strong cash reserves. Stable employment over the previous two years is also a core requirement.

Covering the Equity Gap

The equity gap is where most assumption deals get complicated. The buyer takes over only the remaining loan balance, so the difference between that balance and the home’s current value has to come from somewhere. If a home is worth $400,000 and the assumable balance is $280,000, the buyer brings $120,000 to the table. That can far exceed a normal down payment.

Three options generally cover the gap: cash savings, a second mortgage, or seller financing. FHA rules allow secondary financing on an assumption as long as the repayment terms of the second lien are clearly defined and factored into the underwriting analysis.² Running two mortgages at once means two lenders have to cooperate, and the combined payment can push the buyer’s debt-to-income ratio past acceptable limits.

Some sellers offer to carry a portion of the gap as a private note. That can move the deal along without a second institutional lender, but it also turns the seller into a creditor who bears the default risk. Both sides should have an attorney review any seller-financing arrangement before signing.

How the Process Runs

The buyer starts by contacting the current servicer’s assumption department and requesting the formal application package. That package usually includes a consent-to-assume form or assumption agreement where the buyer provides personal and financial information along with the property details and current loan balance. Errors in the loan number or property address can stall the file for weeks.

Once the documentation is in, the servicer runs a full underwriting review. FHA guidelines require that review within 45 days of receiving all necessary documents, and VA guidelines impose the same deadline.² In practice many servicers blow past the deadline, so 60 to 90 days or longer is a more realistic timeline.

After approval, closing resembles a standard real estate transaction. A new deed transfers title to the buyer, the assumption agreement is executed, and the servicer transfers the account. Any escrow balance for taxes and insurance is settled between the parties at closing.

Fees and Costs

Assumption fees are smaller than the closing costs on a new mortgage, but they aren’t trivial. FHA allows servicers to charge up to $1,800 for processing an assumption, a cap that was doubled from $900 in 2024 to give servicers more incentive to actually move these files.⁶

VA assumptions carry a funding fee of 0.5 percent of the loan balance, paid by the buyer. On a $250,000 balance, that works out to $1,250. The rate doesn’t change based on down payment amount or prior VA loan usage.⁷

Budget separately for title insurance, recording fees for the new deed and assumption agreement, and prorated property taxes or insurance premiums. If a second mortgage is involved to cover the equity gap, that loan carries its own origination costs.

Releasing the Seller From the Debt

Completing an assumption does not automatically take the seller off the loan. Without a formal release, the seller stays legally responsible if the buyer later stops paying. Sellers get burned this way years after closing, when a buyer’s default surfaces on their own credit report.

On an FHA loan, the seller requests the release in writing from the servicer. The servicer evaluates the buyer and, if satisfied, completes form HUD-92210.1, the Approval of Purchaser and Release of Seller. The buyer must sign an agreement to assume and pay the mortgage debt before the release is granted.⁸ Don’t leave the closing table without confirming the form has been completed. A verbal assurance isn’t a release.

On a VA loan, the seller files VA Form 26-6381, the Application for Assumption Approval and Release from Personal Liability.⁹ A veteran seller should also consider whether a substitution of entitlement is possible, because without one the seller’s entitlement stays tied to the property until the loan is paid in full.³

Why Subject-To Deals Are Risky

Some buyers and sellers try to skip the formal process with a subject-to transfer. The deed changes hands while the mortgage stays in the seller’s name, and the buyer just starts making the payments. The lender is never notified. This is not an assumption. It’s an informal workaround with real risk on both sides.

The seller stays fully liable, because the lender never agreed to anything. Missed payments show up on the seller’s credit. The buyer, meanwhile, is living in a home whose mortgage sits in someone else’s name, which creates exposure if the seller later files for bankruptcy or picks up a judgment lien.

The largest risk is that the lender spots the transfer and invokes the due-on-sale clause, calling the full balance due. Federal law gives lenders the right to enforce due-on-sale provisions whenever a property is transferred without prior written consent.¹ Some lenders don’t notice right away, and some don’t act as long as payments arrive on time, but the right to accelerate hangs over the deal for as long as the loan exists.

1
Office of the Law Revision Counsel. 12 US Code 1701j-3 – Preemption of Due-on-Sale Prohibitions
2
U.S. Department of Housing and Urban Development. HUD 4155.1 Mortgage Credit Analysis for Mortgage Insurance – Chapter 7 Assumptions
3
Department of Veterans Affairs. Department of Veterans Affairs Circular 26-23-10 – Loan Assumptions
4
USDA Rural Development. HB-1-3550 Direct Single Family Housing Loans and Grants – Chapter 2 Types of Loans
5
U.S. Department of Housing and Urban Development. FHA Single Family Housing Policy Handbook 4000.1
6
U.S. Department of Housing and Urban Development. FHA INFO 2024-30
7
U.S. Department of Veterans Affairs. VA Funding Fee and Loan Closing Costs
8
U.S. Department of Housing and Urban Development. Release of Personal Liability on FHA-Insured Mortgages
9
U.S. Department of Veterans Affairs. VA Form 26-6381 – Application for Assumption Approval and Release from Personal Liability