Welcome to the seventh NREB Premium briefing. This one is about an asset that can disappear at closing without anyone stopping to ask whether it could transfer with the property.

Here is the scene. Your seller bought in early 2021 with an FHA loan. The listing goes live, a buyer appears, and everyone follows the standard script: the buyer gets a new mortgage at today's rate, the seller's old loan gets paid off at closing, and the title company wires the payoff without a second thought. Somewhere in that wire, a 3.25% mortgage, the kind of financing nobody can originate anymore at any price, simply ceases to exist. The buyer starts over near 6.7%. And in some FHA and VA transactions, paying off that low-rate loan is not the only route available.

Most agents believe mortgage assumptions are a relic: something from the 1980s that banks killed off, or a technicality that only works between family members, or a veterans-only program. Each of those beliefs is checkably wrong, and the money attached to being wrong about this in 2026 is larger than almost any other mistake in the transaction.

Start with the scale, using the most defensible numbers available.

By the Federal Reserve Bank of New York's analysis, FHA-insured loans made up about 12% of outstanding U.S. mortgage balances as of mid-2025, and VA-guaranteed loans about 8%. Call it roughly a fifth of all mortgage debt sitting in the two major government-backed programs. That is a balance share, not a share of homes or listings, but it establishes the point that matters: these are not niche products. They are a fifth of the market's debt.

Now the vintage. Freddie Mac's own weekly survey averaged near 3% through 2020 and 2021, touching an all-time low of 2.65% in January 2021. Many FHA and VA loans originated during that window carry rates in that neighborhood, fixed for the remaining life of the loan. This week, the same survey reads 6.69%, a 2026 high. So the market contains an enormous stock of government-backed loans written at roughly half of today's rate.

Here is what separates those loans from everything else. Conventional mortgages carry due-on-sale clauses that lenders have been entitled to enforce since the Garn-St. Germain Act of 1982, which is why an ordinary Fannie Mae or Freddie Mac loan effectively dies when the home sells, and why you should never imply otherwise to a client. But FHA and VA loans are assumable by design. A qualified buyer can step into the seller's existing loan: same rate, same remaining balance, same amortization schedule. On FHA loans closed since late 1989, the buyer must pass a full creditworthiness review with the servicer. On VA loans, the servicer must approve the assumption. And the fact that surprises nearly everyone, agents included: the buyer assuming a VA loan does not need to be a veteran. Any buyer who meets the financial requirements can assume one, subject to servicer approval and considerations for the seller we will get to, because they matter enormously.

None of this is marketed to you. Existing loan type is often difficult to identify or search consistently through ordinary MLS workflows, so an assumable 3% loan and a nontransferable 7% loan can look identical in every search your buyers run. The asset is invisible unless someone asks about it, and the question is easy to overlook.

Put real numbers on it, principal and interest only, so the comparison isolates the rate.

The home: $450,000. The seller's loan: an FHA mortgage from early 2021, $320,000 remaining balance at 3.25%, roughly 24 and a half years left on the original 30-year schedule.

The standard script: your buyer puts 10% down and borrows $405,000 at this week's 6.69%. Principal and interest: about $2,611 a month.

The assumption: your buyer steps into the seller's $320,000 balance at 3.25%. Principal and interest: about $1,580 a month.

The difference is roughly $1,031 a month, more than $12,000 a year, on the same house. Not from negotiating harder, not from any concession, but from not extinguishing the financing that already exists on the property. Before solving the equity gap, the assumed first alone cuts principal and interest by roughly a thousand dollars a month. How much of that advantage survives once the seller's equity is funded is the question that matters, and it is exactly where this is heading.

One honesty note before anyone quotes net savings to a client: this comparison is principal and interest only, and mortgage insurance runs separately on both paths. A 2020-2021 FHA loan carries that era's annual mortgage insurance premium, typically 0.80% to 0.85%, and when the original down payment was under 10%, it generally runs for the life of the loan. A new FHA loan today carries a lower annual rate on a larger balance; a 90% conventional loan will typically carry private mortgage insurance, which may later be cancellable subject to the loan and applicable requirements. Which insurance picture wins depends on the file, so the lender prices both sides before anyone promises a net number. The rate advantage is the headline; the insurance is a real line item under it.

Now the part of the story where most people who discover assumptions give up, and where the real transaction either gets built or dies.

The buyer assumes a $320,000 balance. The home costs $450,000. The difference, $130,000, is the seller's equity, and the seller does not donate it. That equity has to be satisfied as part of the closing, through buyer cash, approved secondary financing, seller financing where permitted, or some combination. Your buyer had $45,000 ready for their planned 10% down payment, which means they are $85,000 short of making this transaction exist.

This is the equity gap, and it is why the folk wisdom says assumptions only work for cash-heavy buyers, which would make everything above a curiosity instead of a strategy. The instinctive fix, borrowing the difference, raises its own alarm: second-lien money is expensive, close to 9% right now, and stacking a high-rate second on top of the assumed loan feels like it should burn up the whole advantage. And structured carelessly, the fix can be worse than expensive: done wrong, it can jeopardize the servicer's approval, the assumed first mortgage itself, or a veteran seller's most valuable benefit.

So the question that decides whether this is a parlor trick or one of the most powerful financing tools available in 2026 is precise: does financing the $85,000 gap destroy the $1,031 advantage, and how do you structure the transaction so the gap gets bridged without harming the assumed first, the servicer approval, or the seller?

That answer has actual math and an actual system, and both are below.

Past the break: the blended-payment math that answers the gap question with a number, the secondary-financing structures that work and the ones that endanger the deal, the FHA and VA assumption mechanics with current fees and the buyer-qualification rules, the timing reality and how to write a contract around it, the section every agent with veteran sellers owes their clients on release of liability and entitlement (this is where a well-meaning agent can genuinely damage a veteran, and where an informed one becomes indispensable), how to actually find assumable loans when the MLS will not show them, the buyer and seller scripts, the four objections, a client one-pager, and the weekly audit that turns this into a repeatable source of business….