When Sarah Nguyen started house-hunting in suburban Denver in early 2026, she assumed a $350,000 purchase meant a monthly principal-and-interest payment north of $2,200 at prevailing rates. Then her agent flagged a listing with an existing FHA loan at 3.25 percent. If Sarah could qualify to take over that loan, her payment would drop to roughly $1,523, nearly $750 a month less than a new mortgage at 6.75 percent. Over a full loan term, that gap adds up to more than $200,000 in interest savings.
Sarah’s scenario is not a loophole or a workaround. It is a mortgage assumption, and federal rules explicitly allow it on FHA, VA, and USDA loans. With the average 30-year fixed rate hovering near approximately 6.8 percent as of late May 2026, according to Freddie Mac’s Primary Mortgage Market Survey (which fluctuates weekly), millions of government-backed loans originated between 2020 and early 2022 still carry rates between 2.5 and 4 percent. Those rates do not expire when the market moves. The assumption right travels with the loan, not with the interest-rate environment.
“Assumptions are one of the most underused tools in the current market,” said Jessica Lautz, deputy chief economist at the National Association of Realtors, in a May 2026 interview. “Buyers are leaving significant savings on the table simply because they don’t know the option exists.”
Why government-backed loans are assumable
Most conventional mortgages include a due-on-sale clause that lets the lender demand full repayment the moment the property changes hands. That power traces back to the Garn-St Germain Depository Institutions Act of 1982, codified at 12 U.S.C. 1701j-3, which preempts state restrictions on due-on-sale enforcement. (The statute carves out narrow exemptions, such as transfers between spouses, but for a standard sale, the clause effectively kills assumability on conventional loans.)…