15-Year Mortgage vs 30-Year Mortgage: 2026 Comparison
Interactive Data Tool Explore mortgage & home-price data across all four verticals in our live explorer Open the explorer →A 15-year mortgage will always save more money in total interest — about $354,600 on a $400,000 loan at Freddie Mac PMMS rates for the week of October 1, 2026 (6.60% vs 7.28%) — but the monthly payment runs about 28% ($770) higher.
Higher payments now vs more interest forever — which mortgage term actually wins in 2026?
By Dreamy Leads Research · Updated 2026-10-02Decided? Act on it — free, no obligation.
A 15-year mortgage will always save more money in total interest — about $354,600 on a $400,000 loan at Freddie Mac PMMS rates for the week of October 1, 2026 (6.60% vs 7.28%) — but the monthly payment runs about 28% ($770) higher. Choose a 15-year if you can comfortably afford the payment and want to be debt-free faster. Choose a 30-year if cash flow is a priority, you are investing the payment difference in higher-returning assets, or you want flexibility to make extra payments voluntarily rather than being contractually obligated to the higher amount.
How do 15-Year Mortgage and 30-Year Mortgage compare side by side?
| Feature | 15-Year Mortgage | 30-Year Mortgage |
|---|---|---|
| Freddie Mac PMMS rate (week of Oct 1, 2026) | 6.60% | 7.28% |
| Monthly Payment ($400K loan) | ~$3,510 | ~$2,740 |
| Monthly Difference | +$770 more | Baseline |
| Total Interest Paid | ~$231,800 | ~$586,400 |
| Interest Saved vs 30-yr | $354,600 saved | Baseline |
| Payoff Timeline | 15 years | 30 years |
| Equity Buildup Speed | 2x faster | Standard pace |
| Tax Deduction (mortgage interest) | Less — paid off sooner | More — higher balance longer |
| Refinance Flexibility | Locked to higher payment | Can pay extra or not |
| Best For | Income-stable, debt-averse buyers | Cash-flow sensitive, investors |
When 15-Year Mortgage is the better choice
The higher payment is comfortably under 25% of your gross monthly income — financial planners often recommend keeping all housing costs below 28%.
You are within 20 years of retirement and want to eliminate your mortgage payment before stopping work.
You have no other high-interest debt — if you carry credit card or auto loan debt above 7%, eliminating those first makes more financial sense.
Psychological debt freedom matters to you — many homeowners report significantly reduced financial stress once their mortgage is eliminated.
When 30-Year Mortgage is the better choice
The difference in monthly payment ($770+ on a $400K loan) would strain your budget or eliminate your emergency fund — cash flow is more important than interest optimization.
You plan to invest the payment difference in index funds or retirement accounts that historically return 8–10% per year — the opportunity cost may exceed the mortgage interest savings.
You expect income growth — a 30-year keeps your required payment low now, and you can always make extra principal payments when cash flow improves.
You are buying in a high-cost market and the 15-year payment is simply unaffordable at your current income, even if you would prefer the shorter term.
How they compare on total cost of ownership
On a $400,000 home loan at Freddie Mac PMMS rates for the week of October 1, 2026: a 15-year at 6.60% costs $3,510/month and $231,800 in total interest. A 30-year at 7.28% costs $2,740/month and $586,400 in total interest — $354,600 more. A 30-year borrower who invests the $770 monthly difference at an 8% annual return accumulates ~$266,400 over 15 years, but still owes ~$299,000 on the 30-year loan at that point — so at these rates the 15-year comes out ahead unless the invested difference earns about 9.3% a year or more. Most people do not invest the difference consistently either, which is why the 15-year is often the right behavioral choice.
Pricing
15-Year — $400K Loan @ 6.60%
Total interest: $231,800 over life of loan
30-Year — $400K Loan @ 7.28%
Total interest: $586,400 over life of loan
Interest Savings (15yr)
Lifetime savings vs 30-year
30-Year Extra Payment Strategy
Pays off the 7.28% 30-year in 15 years without commitment
Customer reviews and reputation
Both 15-year and 30-year mortgages are standard conventional loan products offered by every major U.S. lender. Rates are set by bond market conditions — the 15-year rate is typically 0.5–0.75% lower than the 30-year because lenders hold less interest-rate risk over the shorter term. Both are fixed-rate products with fully amortizing payments.
Frequently Asked Questions
Common questions about 15-Year Mortgage vs 30-Year Mortgage.
Is a 15-year mortgage better than a 30-year?
It depends on your financial priorities. On a $400,000 loan at Freddie Mac PMMS rates for the week of October 1, 2026, a 15-year saves about $354,600 in interest but requires a monthly payment about 28% ($770) higher. A 30-year preserves cash flow and flexibility. Mathematically, a 30-year with consistent investing of the payment difference can outperform, but few people maintain that discipline.
Which is cheaper — 15-year or 30-year?
A 15-year mortgage has a lower interest rate (typically 0.5–0.75% less) and far less total interest paid. Monthly payments are higher, but total cost of ownership is significantly lower. On a $400K loan at Freddie Mac PMMS rates for the week of October 1, 2026, the 15-year saves ~$354,600 in interest.
Can I pay off a 30-year mortgage in 15 years?
Yes — making extra principal payments on a 30-year mortgage can replicate the 15-year payoff timeline. This gives you the flexibility of the lower required payment with the option to pay it off faster. Many financial advisors recommend this approach.
What are 15-year vs 30-year mortgage rates in 2026?
Freddie Mac’s Primary Mortgage Market Survey (PMMS) for the week of October 1, 2026 puts the 30-year fixed at 7.28% and the 15-year fixed at 6.60%; the 30-year has ranged from 5.98% to 7.28% so far in 2026. Rates vary by lender, credit score, down payment, and loan type. Get quotes from at least three lenders to find your best rate.
Which is better for building equity?
A 15-year mortgage builds equity roughly twice as fast because a larger portion of each payment goes toward principal from the start. This matters most if you plan to sell within 10 years and want to capture more equity at sale.
Which mortgage term is better for retirement planning?
If you are 10–15 years from retirement, a 15-year mortgage can eliminate your monthly housing payment before you retire — significantly reducing your income needs. A 30-year started at age 50 would extend payments to age 80, often undesirable.