By Prerna Kapoor, CLHMS | REAL Brokerage | June 11, 2026
Here’s a number that surprises almost everyone I work with: the gap between the average mortgage rate from 2021 and what you’d pay today is wide enough to change your whole monthly budget. A buyer who locked in around 3% back then is sitting on a payment that looks nothing like what a new loan would cost in 2026. So it’s fair to ask the question more buyers are asking me lately: can you just take over that lower rate when you buy their house?
Sometimes, yes. It’s called assuming a mortgage, and for the right buyer and the right home, it can save real money. But there are rules, limits, and one big catch that trips people up. Let me walk you through how it actually works in Colorado.
What an assumable mortgage actually is
When you assume a mortgage, you take over the seller’s existing home loan instead of getting a brand-new one. You keep their interest rate, their remaining balance, and their repayment timeline. If they had 26 years left at 3.25%, that’s what you step into.
The lender still has to approve you. You go through underwriting, prove your income, and show you can carry the payment, just like any loan. What’s different is the rate you inherit, and in a market where new 30-year rates have hovered well above 6% for a while, inheriting a 3% loan is the kind of thing that makes a deal worth a closer look.
One thing to be clear about: assuming a loan is not the same as “subject-to,” where a buyer takes over payments without the lender’s sign-off. That’s a different, riskier arrangement, and it’s not what I’m talking about here. A real assumption is approved by the lender and puts the loan formally in your name.
Which Colorado loans you can assume, and which you can’t
Free Colorado Real Estate Guides
Prerna's no-fluff buyer & seller playbooks — built from real Colorado deals.
Or ask Prerna’s assistant a question directly — chat icon, bottom right.
This is where most of the confusion lives. The short version: government-backed loans are usually assumable, and most conventional loans are not.
FHA, VA, and USDA loans all allow a qualified buyer to assume them. According to the Consumer Financial Protection Bureau, these government-insured loans are generally assumable as long as the new borrower meets the lender’s requirements. That covers a big slice of Colorado buyers, since VA loans are common around military communities and FHA loans show up constantly with first-time buyers.
Conventional loans, which most move-up buyers use, almost always include a “due-on-sale” clause. That clause lets the lender demand the full balance when the home changes hands, which effectively blocks an assumption. So if a seller financed with a standard conventional loan, assuming it usually isn’t on the table.
The practical takeaway: when you’re looking at a home and the rate sounds appealing, the first question is what kind of loan the seller has. A VA loan from 2020 is a very different conversation than a conventional loan from last year.
The catch most people miss: the equity gap
Now for the part that surprises buyers. When you assume a loan, you take over the balance, not the price. The seller still wants to be paid for the equity they’ve built, and you have to cover the difference between the sale price and the remaining loan amount.
Picture a home selling for $650,000 with an assumable loan that has $380,000 left on it. You’d be responsible for that $270,000 gap, either in cash or through a second loan at today’s rates. That second piece of financing won’t carry the dreamy 3% rate, so your blended cost ends up somewhere in the middle.
For VA loans there’s an added wrinkle. If a non-veteran assumes a veteran’s VA loan, the original veteran’s entitlement can stay tied up until the loan is paid off, which matters a lot to the seller’s ability to use their VA benefit again. The VA’s home loan program spells out how entitlement works, and it’s worth a careful read before anyone signs.
How the process works in a Colorado transaction
An assumption runs on a different track than a regular sale, and the timeline tends to be longer. You apply directly with the seller’s current loan servicer, not a lender of your choosing. That servicer underwrites you, and their pace is their pace, which can stretch the closing out by weeks compared to a conventional loan.
Because of that, the contract matters. You’ll want your purchase agreement to spell out that the deal depends on the servicer approving your assumption, with enough time built in for their review. This is the kind of detail I make sure gets handled up front, because a vague timeline on an assumption can put your earnest money at risk if the servicer drags. If you want a refresher on how that deposit works, my guide on earnest money in Colorado covers it.
You’ll also pay assumption fees to the servicer, though they’re typically far lower than the origination costs on a fresh loan. For a fuller picture of what closing involves, take a look at my breakdown of Colorado closing costs for buyers.
Who this actually makes sense for
An assumption shines when two things line up: the seller has a low-rate government loan, and you have enough cash or financing to cover the equity gap without wrecking your budget. That second part is the real filter. Plenty of buyers love the idea of a 3% rate until they see the size of the gap they’d need to fund.
It tends to work best for buyers with strong savings, veterans assuming another veteran’s VA loan so entitlement transfers cleanly, and anyone buying a home where the seller’s balance is high relative to the price. When the loan balance is small, the gap is large, and the math gets harder to love.
My honest take: assumable mortgages are underused in Colorado, mostly because buyers don’t know to ask and a lot of agents don’t bring them up. They won’t fit every deal. But when the pieces line up, taking over a sub-4% loan in a 6%-plus world is one of the few legitimate ways to beat the rate environment. It’s always worth asking the question.
If you’re house hunting and want to know whether a particular home has an assumable loan, that’s something I can help you find out before you write an offer. No pressure, no pitch, just a clearer picture of your options.
Prerna Kapoor | REALTOR® | Luxury Home Specialist
REAL Brokerage | 720-949-5450 | info@prernakapoor.com
CLHMS • RENE • PSA • ABR | International Sterling Society Award Winner
Prerna specializes in residential real estate across Parker, Aurora, Lone Tree, Castle Pines, Highlands Ranch, Cherry Creek, Greenwood Village, and Centennial. She speaks English, Japanese, and Hindi.
