How a Mortgage Assumption Agreement Works and How to Get One
Key Takeaways
- A mortgage assumption agreement transfers the financial responsibility of an existing home loan from the seller to a new buyer, allowing the buyer to inherit the original, potentially lower interest rate and save on traditional closing costs.
- Only specific loan types are eligible for transfer—including FHA, VA, USDA, and certain conventional mortgages—and buyers must undergo a standard lender underwriting process that typically takes 45 to 90 days.
- The primary financial hurdle is the equity gap; buyers must pay the seller for their accumulated home equity upfront, which often requires a significantly larger cash down payment than a standard home loan.
- While assuming a mortgage offers the advantages of a shorter remaining loan term and reduced fees, buyers should compare these savings against the upfront cash requirements to determine if a mortgage refinance is a more viable option.
Think back to the last time you made an assumption. Maybe it was at work with your boss or at home with your spouse. In any case, you assumed something to be true rather than seek clarification.
You can find yourself in quite a predicament when you assume. But when we’re discussing home loans, an assumption turns out to be a positive thing. Let’s dive into the ins and outs of a mortgage assumption agreement.
What is a mortgage assumption agreement?
A mortgage assumption agreement is a legal transfer of an existing home loan from the current homeowner to a new borrower, who takes over the remaining balance, interest rate, and monthly payments instead of opening a brand-new loan. American Financing helps buyers and family members walk through whether a specific loan qualifies for assumption before they commit to the process.
Consider the following scenario. You’re interested in buying a home yet want to avoid obtaining an entirely new loan. As long as you understand that you’ll be on the hook for someone else’s debt, a mortgage assumption agreement could be a viable option.
Now for the follow-up question: Why would you decide to assume a home loan instead of getting your own mortgage?
It really depends on the situation. If rates are unfavorable for buyers and the current homeowner has a significantly better rate, then it makes sense to explore a mortgage assumption. Just know that only certain loans are assumable and that you will need to learn about restrictions.
How long does it take?
By no means is mortgage assumption an easy process. You’ll be asked to provide extensive documentation, much like you would when securing financing the traditional way. That’s why it’s important to have copies of pay stubs and W-2’s ready ahead of time.
Keep in mind that the average loan assumption takes anywhere from 45-90 days to complete. The more issues there are with underwriting, the longer you’ll have to wait to finalize your agreement. Do yourself a favor and get the necessary criteria organized in advance.
How to assume a mortgage
To assume a mortgage, a buyer confirms the loan type is eligible for transfer, applies with the current lender to be underwritten in their own name, pays the seller for their built-up equity, and closes once the lender approves the transfer. American Financing can review a specific loan's assumability and walk a buyer through each of those steps before they make an offer.
How to assume a mortgage from a family member
Say one of your family members plans to move into a larger house in the near future. Knowing you’re in the market for your own place, they ask you about assuming their mortgage. Here’s what you should do before accepting their offer.
Confirm the type of mortgage they have
As we mentioned earlier, not all home loans are assumable. The good news is that conventional and government-backed loans, such as FHA, VA, and USDA, allow for transfers between borrowers. Other mortgages require the seller to pay off the loan when they hand over the property.
Have enough saved for a down payment
While you may not have to worry about closing costs with a mortgage assumption, you’ll still have to come up with a down payment. These funds essentially pay off the original borrower’s equity. So if the seller previously took out a $300,000 loan and has since paid it down to $250,000, you would pay them $50,000 in cash for their equity.
See if you benefit from a refinance
Not exactly thrilled with the terms of your family member’s loan? You could refinance and enjoy significant savings if you have your credit in order. What’s more, today’s mortgage rates are some of the lowest we’ve seen in years. American Financing's refinance team can compare both scenarios side by side before you decide.
Does it hurt your credit?
We should mention that the seller’s payment and credit history have no impact on this transaction. That said, be prepared for a lender to check your credit score and employment status. Doing so helps them determine if you are, in fact, able to assume the mortgage.
Mortgage assumption FAQs
What is an assumption request? An assumption request is the paperwork a buyer submits to a lender asking to take over an existing mortgage in their own name. The lender reviews it the same way it would a new loan application, checking credit, income, and employment before approving the transfer.
What are the requirements for a mortgage assumption? A buyer typically needs to qualify through the current lender's underwriting process, have enough cash to cover the seller's equity, and confirm the loan type allows transfers. Documentation requirements are similar to a standard mortgage application, including pay stubs and W-2s.
Pros and cons
Not all aspiring homeowners should opt for a mortgage assumption. Be sure to familiarize yourself with the advantages and disadvantages before making a decision.
Pros
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Possible lower rate - A lower interest rate could save you hundreds of dollars a month or more. It’s why many hopeful buyers jump at the chance to assume a loan that was originated in a low-rate environment.
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Pay less in closing costs - We touched on this earlier. Since you won’t need a lender to generate a new loan, you won’t have to worry about typical underwriting fees.
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Smaller mortgage amount - Not sure you can stomach a 30-year mortgage but don’t earn enough income to manage a 15-year mortgage? You’ll likely find yourself somewhere in between when you take on another person’s loan. This potentially translates to fewer payments and less of your hard-earned money going toward interest.
Cons
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Higher down payment - This is the biggest drawback when entering into a mortgage assumption agreement. With home prices continuing to rise, equity amounts are at all-time highs. Unless you have a sizable savings account, your best bet may be to research down payment assistance programs for your own home loan.