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15-Year vs 30-Year Mortgage

A 15-year loan has a higher payment and less total interest; a 30-year loan has a lower payment and more cash flow. There is no universal answer: it depends on whether you can carry the higher payment, invest the difference, and when you will sell.

更新 2026-10-31 · 公式可核验

Compare total cost

Use the same loan and rate to compare 15- and 30-year payments and total interest; the 15-year usually pays much less interest.

But the extra cash flow from a 30-year may be better used for high-interest debt or investing.

TermStrengthTradeoff
15-yearLess total interest, faster payoffHigher payment, tighter cash flow
30-yearLower payment, flexibilityMore total interest

Paying early

You can pay a 30-year loan at a 15-year pace, getting close to the same payoff while keeping the lower required payment.

Confirm there is no prepayment penalty and mark extra payments for principal.

FAQ

Is 15 years always cheaper?

Usually less interest, but a higher payment; compare cash flow and investment returns.

How fast can a 30-year loan be paid off?

At a 15-year payment pace, about 15 years; use an extra-payment calculator for exact numbers.

Sources

Related calculators

Mortgage Payment CalculatorCalculate monthly principal and interest, taxes, insurance and total interest from price, down payment, rate and term.

More guides

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