Key Takeaways

FHA, VA and USDA loans can be assumed with the servicer’s approval. Most conventional loans cannot, because of their due-on-sale clause.
Assuming keeps the seller’s rate, remaining balance and remaining term. You still have to qualify on credit and income.
The catch is the equity gap: price minus the loan balance. A $550,000 home with a $380,000 balance needs $170,000 from you, in cash or a second loan.
Plan for a longer closing, an assumption fee (FHA caps it at $1,800) and, on VA loans, a 0.5% funding fee on the balance you assume.
VA sellers: unless the buyer is an eligible veteran who substitutes their entitlement, yours stays tied to the loan until it is paid off.

Many homeowners are sitting on a first mortgage with a rate no new loan can match today. An assumable mortgage lets a buyer take that loan over instead of starting fresh. It can be one of the best deals in a purchase, or a slow, cash-heavy detour. The difference comes down to one number, the equity gap, and a little math. Here is how assumptions work, what they cost, and how to tell whether one actually beats a new loan.

What is an assumable mortgage?

An assumable mortgage is a home loan a buyer can take over from the seller. Instead of getting a new loan, you step into the seller’s existing one: same interest rate, same remaining balance, same remaining term. The seller’s loan servicer has to approve you, just as a lender would, and when the assumption is done properly the seller receives a release of liability and walks away from the debt.

Assumptions matter most when the seller’s rate is well below today’s market. You cannot recreate that rate with a new loan, but you may be able to inherit it.

Which loans are assumable?

Government-backed loans are assumable by design. Most conventional loans are not.

Loan type	Assumable?	What to know
FHA	Yes, with servicer approval	You must qualify and live in the home as your primary residence. The loan’s FHA mortgage insurance carries over. Assumption fee capped at $1,800.
VA	Yes, with servicer approval	You do not have to be a veteran, but you must meet VA credit and income standards. A 0.5% VA funding fee applies to the balance assumed.
USDA	Yes, with USDA approval	You must meet USDA income and occupancy rules, and the property must still be in an eligible area.
Conventional	Generally no	A due-on-sale clause lets the lender call the loan when the home is sold. The legal exceptions (transfers to a spouse, in a divorce or at death) do not help an outside buyer.

Not sure what the seller has? Ask the listing agent for the loan type, servicer, current balance and remaining term. More agents now call out “assumable” loans in the listing itself.

How does the equity gap work?

When you assume a loan, you take over the balance, not the price. Everything in between is the seller’s equity, and you have to pay it at closing.

Equity gap = purchase price − assumed loan balance

Say you are buying a $550,000 home. The seller took out a 30-year FHA loan in 2021, and $380,000 is left on it.

Equity gap: $550,000 − $380,000 = $170,000
That is about 31% of the price, which is far more cash than many buyers would bring to a new loan.
Term: five years into a 30-year loan, about 25 years remain. You would be on track to pay it off five years sooner than with a new 30-year loan, and because the early interest-heavy years are behind it, more of each payment goes to principal from day one.

Buyers usually cover the gap with some combination of:

Cash, including proceeds from selling your current home
A second loan. VA formally allows secondary financing on assumptions, as long as it sits behind the VA loan, pays only the seller’s equity and closing costs (no cash back to you), and its payment counts when you qualify. Other programs and servicers have their own rules, so confirm before you write the offer.
Equity from another property, for example a line of credit on a home you already own (see HELOC vs. Home Equity Loan)
Negotiating the price. Some sellers will trade price for a buyer who can close on their assumable loan.

Is assuming a loan cheaper than getting a new mortgage?

Often, but not automatically. If you borrow part of the gap, you end up with two loans at two different rates, so compare them on a blended basis against a single new loan for the same total.

Continuing the example, suppose you have $60,000 in cash and borrow the other $110,000 of the gap:

Total financed: $380,000 assumed + $110,000 second loan = $490,000
Share carried at the seller’s rate: $380,000 ÷ $490,000 = about 78%

Blended rate = ($380,000 × assumed rate + $110,000 × second-loan rate) ÷ $490,000

Compare that figure to what a new $490,000 loan would cost you. Because most of the weight sits on the seller’s rate, the blend usually wins when that rate is far below today’s market. But the math turns against you as the gap grows. If the assumed balance were only $250,000 and you borrowed $240,000 of the gap, barely half the money would carry the seller’s rate. Second loans also tend to have shorter terms, which can push the combined monthly cost higher in the early years even when the blended rate looks better.

The rule of thumb: assumptions work best when the assumed balance is a large share of the price, or when you have the cash to cover the gap without draining your reserves.

What does an assumption cost and how long does it take?

Assumption fee. FHA caps what the servicer can charge at $1,800. VA also caps the servicer’s processing fee.
VA funding fee. 0.5% of the balance you assume. On $380,000, that is $380,000 × 0.005 = $1,900.
Normal closing costs for title, recording, escrow and prepaid taxes and insurance (see Closing Costs Explained).
Time. The seller’s servicer handles the assumption, not a lender you choose. Plan on 45 to 90 days, and sometimes longer. VA expects servicers to decide on an assumption within 45 days of receiving a complete package.

Build that timeline into your offer: a realistic closing date and an assumption-approval contingency, so you are protected if the servicer declines or stalls (see Contingencies in a Home Offer).

What should VA sellers know before agreeing to an assumption?

Assumptions can help a VA-financed home sell, but sellers need to understand one thing first: entitlement.

Your entitlement can stay tied up. If the buyer is not a veteran, or is a veteran who does not substitute their own entitlement, the entitlement you used stays attached to that loan until it is paid off. That can limit what you can borrow with your next VA loan.
Substitution restores it. If the buyer is an eligible veteran with enough entitlement and agrees to substitute it, yours is freed for reuse.
Get a release of liability. Make sure the assumption goes through the servicer formally and ends with a release of liability. Without it, you remain responsible if the buyer stops paying.
Avoid informal “subject-to” deals. Handing over the deed while the loan stays in your name leaves you liable, exposes the loan to the due-on-sale clause, and puts your credit in the buyer’s hands.

If you are weighing an offer like this, my VA loans page covers how entitlement works, and my Colorado Springs VA guide covers the local picture.

Why do assumable loans matter in Colorado?

Colorado’s Front Range has one of the country’s larger military communities, with Fort Carson, the Air Force Academy, and Peterson, Schriever and Buckley Space Force Bases. That makes VA loans common in Colorado Springs, Fountain and Aurora, and FHA loans are a staple for first-time buyers across the Denver metro. A good share of the homes for sale here carry a loan that can legally be assumed. For buyers, that is worth asking about on every listing. For sellers and their agents, an assumable loan can be a real selling point when it is marketed clearly.

How do you assume a mortgage? Step by step

Confirm the loan type with the listing agent: FHA, VA, USDA or conventional.
Get the numbers: current balance, remaining term, servicer, and for VA loans whether the seller needs entitlement substitution.
Run the gap and blended math against a new loan for the same price.
Line up the gap funds: proof of cash and, if needed, approval for a second loan the servicer will accept.
Write the offer with an assumption contingency and a closing date the servicer can realistically meet.
Apply with the servicer and send a complete document package quickly. Incomplete files are the most common cause of delays.
Close. You sign the assumption agreement, pay the equity and closing costs, and the seller receives a release of liability.

When is an assumption not worth it?

The gap is too big relative to the balance, and you would have to borrow most of it at a higher cost.
You need speed. In a multiple-offer situation, a 60- to 90-day servicer timeline can lose you the house.
It would drain your reserves. Putting every dollar into the gap leaves nothing for repairs, moving or emergencies.
The mortgage insurance is permanent. Many FHA loans carry mortgage insurance for the life of the loan, and it transfers with the assumption. A new conventional loan may let you remove mortgage insurance later (see PMI Explained).
The balance is small. If only a modest amount is left on the seller’s loan, the rate advantage does not have much money to work on.

Frequently Asked Questions

Can anyone assume a VA loan?

A buyer does not have to be a veteran to assume a VA loan, but they must meet VA credit and income standards and be approved by the servicer. If the buyer is not an eligible veteran who substitutes entitlement, the seller’s entitlement stays tied to the loan until it is paid off.

Are conventional loans assumable?

Generally no. Most conventional loans have a due-on-sale clause that lets the lender require payoff when the home is sold. FHA, VA and USDA loans are the assumable options.

Do I keep the seller’s interest rate when I assume a loan?

Yes. The rate, remaining balance and remaining term all stay the same. You take over the loan exactly where the seller left off.

How do I pay the seller’s equity?

At closing, with cash, proceeds from selling another home, or a second loan where the program and servicer allow it. VA formally permits subordinate financing on assumptions, provided it covers only the seller’s equity and closing costs and its payment is counted when you qualify.

How long does a mortgage assumption take?

Commonly 45 to 90 days, depending on the servicer. VA expects servicers to decide within 45 days of a complete application. Build the timeline and an assumption contingency into your offer.

Does the seller stay liable after an assumption?

Not if the servicer approves the buyer and issues a release of liability. Informal transfers where the loan stays in the seller’s name leave the seller responsible for it.

Can I assume an FHA loan on an investment property?

Generally no. FHA assumptions require the buyer to qualify and occupy the home as a primary residence.

Official sources: VA Circular 26-23-10 on assumptions and Circular 26-24-17 on secondary financing.

Assumable Mortgages: How to Take Over a Seller’s FHA or VA Loan