15-Year vs. 30-Year Mortgage: Here’s How to Choose

A 15-year mortgage will save you a fortune in interest. But a 30-year mortgage will keep your monthly payments manageable. That's the core trade-off, and it's a bigger deal than most buyers realize.

With a shorter term, you'll lock in a lower interest rate. You'll also pay far less in total interest over the life of the loan. The catch? Significantly higher monthly payments.

Landon Spitler, VP of Lending at Certainty Home Lending in San Luis Obispo, CA, has run the numbers, and they’re striking: about $27,000 more in principal payments over just the first two years of a 15-year mortgage compared to a 30-year loan.

That monthly squeeze is a big reason roughly 90% of U.S. homebuyers choose a 30-year mortgage, while only about 6% opt for a 15-year term.[1]

Spitler estimates that well under 1% of borrowers in his market are choosing a 15-year mortgage right now. "Compare that to 2020, when rates were at historic lows," he says. "At a 1.99% interest rate, the payments didn't look so bad on a 15-year fixed."

Josh Bradley, Executive Loan Officer at Best Interest Financial, sees the same pattern.

"I personally am not the biggest fan of shorter-term loans," Bradley says. "I would much rather have a lower monthly payment and more cash flow available so that I can invest money or do something along those lines."

Comparing 15-year and 30-year mortgage side by side

Plug in your own numbers — loan amount, rate, and term — to see how a 15-year payment compares to a 30-year in your situation.

When should you choose a 15-year mortgage?

Choosing a shorter mortgage can have certain advantages. For example, a 15-year mortgage might work if you:

• Are a mid-career professional at peak earning power, as the increased monthly payment probably won’t be a problem for you
• Have a deep emergency fund to fall back on (most financial advisors recommend three to six months of expenses saved)[2]
• Are approaching retirement, and want to be debt-free before you retire; The shorter term can allow you to pay off your home quickly

The key considerations: Can you comfortably sustain the higher payment? And are you giving up better uses of that money — retirement contributions, investing, paying down higher-interest debt?

Also, keep in mind that it can be slightly more difficult to qualify for a 15-year mortgage, since the higher monthly payments require a higher income, a lower debt-to-income ratio, and might even have stricter credit score requirements.

If you qualify, many mortgage professionals recommend a 15-year mortgage. But Spitler says the borrowers he sees choose 15-year loans almost always have two things in common: very high income, and a purchase price well below what they could afford.

"They can afford a $900,000 house, but they're actually buying a $300,000 house," he says. "In my entire 23-year career, I don't know that I've ever had anyone choose a 15-year fixed that didn't also have 20% down payment."

Bradley points to one specific scenario where a 15-year makes real sense: when you're selling soon.

"You build equity so much quicker on a 15-year loan," he says. "Some people will do that so that when they sell the home, they have more left from the profit."

When should you choose a 30-year mortgage?

A 30-year mortgage costs you a lot more in the long run. But it also offers flexibility and security. A 30-year mortgage makes sense if:

• You're a first-time buyer stretching to get into the market. In high-cost areas especially, a 15-year payment can be a nonstarter. Spitler works on California's central coast, where the median home price is around $900,000. "At that price point, a 15-year payment would eat up so much of a buyer's income that there's just no room left," he says.
• You have an inconsistent income. The low, predictable payments are easy to handle. For example, this could apply to seasonal workers, freelancers, commission-based workers like salespeople or real estate agents, small business owners, or gig workers.
• You need to save up for retirement. Or, you want to allocate your money into other investments, a lower mortgage payment frees up more of your cash.
• You want a safety net if your situation changes. One thing many buyers don't realize is that if you're locked into a 15-year mortgage and your financial situation changes (a job loss, a medical expense, a new baby), you can't simply switch to a 30-year payment.

The key consideration here is whether a 30-year mortgage fits your income more comfortably than a more expensive, shorter-term mortgage, or whether you prefer to put cash into investments you think will appreciate more than your home.

Spitler also points out that a 30-year mortgage can serve as a safety net if a homeowner goes through a period of financial adversity.

“If they were to have lost their job,” he says, “obviously it would be more suitable for them to have a 30-year fixed and have a monthly payment that's 35% lower than a 15-year fixed.

» Biweekly payments on a 30-year loan can shave years off your term. Try our biweekly mortgage payment calculator.

So how do you decide between a 15-year and 30-year mortgage?

If your circumstances don’t make it clear which option is better for you, there’s a general metric that might be able to help: the 28/36 rule.

This rule states that you shouldn’t pay more than 28% of your gross income towards housing, and your total debt payments shouldn't take up more than 36% of your gross income.[3]

Plug your potential mortgage payment, plus any other debt obligations (credit card payments, student loans, car payments) into that rule. If a 15-year payment blows past 28% but a 30-year fits comfortably, you have your answer.

But Spitler says buyers shouldn't overlook the more subjective concerns either — like comfort.

"You got to have a real honest conversation with yourself," he says. "If I take on this higher mortgage payment, am I going to be able to comfortably pay my utilities, buy my necessities, and maybe even have extra money to travel and do things I enjoy?"

Bradley makes a blunter case for the 30-year: in today's rate environment, the spread between a 15- and 30-year isn't as wide as people assume.

"The spread's usually anywhere from a half to a full percent lower," he says. "That reduction in term really changes things a ton, where you build up equity just so much quicker because it's half the amount of time you're making payments."

His own approach? Take the flexibility.

"I always think of it as, I could pay extra on a 30-year mortgage to pay it off quicker if I want, but then I'm not married to a higher payment."

An alternative: the hybrid strategy

An interesting approach that’s gaining momentum in some quarters is taking on a 30-year mortgage but paying it off as if it were a 15-year mortgage.

This strategy has a lot to recommend it: if you stick to the accelerated payment schedule, you’ll pay much less, total, than you would have if you took the full thirty years to pay off the loan. But you also preserve valuable flexibility – if your income takes a temporary hit, you can revert to the minimum 30-year payment level until you recover.

How the hybrid strategy plays out on a $320,000 loan

Say you bought a $400,000 home with 20% down ($80,000), leaving a $320,000 loan. At today's 30-year rate of 6.05%, your monthly principal and interest payment would be about $1,929.

Now add an extra $800 per month toward principal. You'd pay off the entire loan in roughly 14 years and 10 months — close to a 15-year schedule — and save about $209,000 in total interest compared to paying it off over the full 30 years.

Bradley says this is how he thinks about his own mortgage. Spitler likes the approach for the same reason.

"I think it's a really happy medium between the extremes of doing a 30-year fixed and having the very, very slow principal reduction that comes with that and being locked into the 15-year fixed mortgage and having rapid principal reduction, but having no flexibility," Spitler says.

He also stresses one real drawback.

"What you don't get, obviously, in that method, is the benefit of roughly half a percent lower interest rate for the 15-year fixed," Spitler says. Still, he thinks it's worth it. "I would love if all of my clients got on that sort of payment schedule."

You could also refinance your 30-year into a 15-year down the road if rates fall. That's less common in today's higher-rate environment: Only about 8% of refinancing borrowers shortened their loan term in early 2024, according to Freddie Mac's refi trends report.

Before you try the hybrid approach

One potential obstacle is a mortgage prepayment penalty. It's rare on today's conventional loans, but it does exist on some products. Check your loan documents — or ask your lender directly — before you start making extra payments.

» Compare rates on 15-year and 30-year loans with Best Interest today. Answer a few questions and we’ll connect you with a dedicated loan officer in minutes to guide you through available loan options and rates—no social or date of birth required.

Why you should trust us

This article was written by Franklin Schneider, a personal finance writer whose work has appeared in The Washington Post, Slate, and other national outlets. It was edited by Steve Nicastro, Content Lead at Best Interest Financial, a former licensed real estate agent in Charleston, SC, and a personal finance writer at NerdWallet for more than six years.

Direct input on the loan math, rate comparisons, and borrower scenarios came from three licensed loan officers on staff at Best Interest Financial: Chris Kuclo, Senior Director of Agent Relations and Sales (NMLS 926690); Josh Bradley, Executive Loan Officer (NMLS 1312222); and Bernie Frascarelli, Executive Loan Officer (NMLS 938329), who reviewed the draft for technical accuracy. The Kuclo and Bradley quotes come from recorded April 2026 interviews, not scripted marketing copy.

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