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Finance comparison

15-Year vs 30-Year Mortgage

Compare 15-year and 30-year mortgage payments, total interest, and monthly affordability trade-offs.

Quick comparison

Aspect15-year mortgage30-year mortgage
Monthly paymentHigherLower
Total interestUsually much lowerUsually higher
Payoff time15 years30 years
RateOften lowerOften higher

Side-by-side pros and cons

15-year mortgage

Higher payment, faster equity, less total interest.

Pros

  • Pays off home in half the time of a 30-year loan.
  • Typically lower interest rate than 30-year products.
  • Builds equity faster with more principal each month.
  • Less total interest over the life of the loan.

Cons

  • Monthly payment is substantially higher.
  • Less cash flow for savings, investing, or emergencies.
  • Harder to qualify at the same home price.
  • Less flexibility if income drops temporarily.

When to use 15-year mortgage

  • You can comfortably afford the higher payment.
  • You want to be mortgage-free before retirement.
  • Minimizing total interest is a top priority.

30-year mortgage

Lower payment, more flexibility, higher total interest.

Pros

  • Lower monthly payment improves affordability.
  • Frees cash for investments or other goals.
  • Easier to qualify for the same purchase price.
  • Can still prepay when extra cash is available.

Cons

  • Pays more total interest over the full term.
  • Equity builds more slowly early on.
  • Temptation to spend the payment savings elsewhere.
  • Longer debt obligation if not prepaid.

When to use 30-year mortgage

  • Payment comfort matters more than total interest.
  • You want room in the budget for other priorities.
  • You may invest the payment difference for higher returns.

Overview

A 15-year mortgage accelerates payoff and cuts total interest but requires a larger monthly payment. A 30-year mortgage spreads payments over a longer horizon, improving affordability at the cost of more interest if you keep the loan full term.

Use mortgage calculators with the same home price, down payment, and rate assumptions for each term. Compare monthly payment, total interest, and how each fits your cash-flow plan.

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Frequently asked questions

Is a 15-year mortgage always cheaper overall?

Usually yes on total interest, but only if you keep the loan full term and the rate spread favors the shorter term. Run both scenarios with your actual rate quotes.

Can I switch from 30-year to 15-year later?

You can refinance into a shorter term or make extra principal payments on a 30-year loan. Both approaches accelerate payoff without committing to the higher 15-year payment from day one.

How much higher is a 15-year payment?

Often 25–40% higher than a 30-year payment at similar rates, depending on loan amount and rate spread. Use the mortgage calculator with your numbers.

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