15-Year vs 30-Year Mortgage: How to Choose
Educational comparison only. This is not a quote, a recommendation, or an offer of credit. Your situation, credit, property, and program determine what actually makes sense for you.
15-Year Mortgage vs 30-Year Mortgage: side by side
The table below summarizes how the two options differ on the factors most readers ask about. Read it as a starting point, not a verdict.
| 15-Year Mortgage | 30-Year Mortgage | |
|---|---|---|
| Term length | Loan is paid off in 15 years | Loan is paid off in 30 years |
| Monthly principal and interest | Higher per month for the same loan amount | Lower per month for the same loan amount |
| Interest rate | Usually lower than the 30 year for the same borrower | Usually higher than the 15 year for the same borrower |
| Equity build | Principal pays down quickly | Principal pays down slowly in the early years |
| Cash flow flexibility | Tighter, the larger payment is contractual | More room to redirect cash to savings, investing, or extra principal |
| Total interest if held to payoff | Lower over the life of the loan | Higher over the life of the loan |
| Refinance break even sensitivity | Shorter horizon, smaller savings cushion | Longer horizon, more room for rate moves to matter |
When each option tends to make more sense
Neither option is universally better. The right call depends on your goals, your cash flow, and how long you plan to keep the loan or the home.
When 15-year mortgage tends to fit
When a 15 year tends to fit
- Cash flow comfortably absorbs the larger payment plus reserves
- Goal is to be debt free before a specific milestone, like retirement
- Borrower is highly motivated to build equity quickly
- Other tax advantaged savings are already on track
When 30-year mortgage tends to fit
When a 30 year tends to fit
- Monthly cash flow flexibility matters more than the lowest total interest
- Borrower plans to invest the payment difference or pay extra optionally
- Income is variable or expected to grow, and a smaller required payment is safer
- The home may not be held for the full 30 year term
Run the numbers
The only number that actually matters is the one for your situation. These calculators help you sanity-check it.
- 15 vs 30 Year Comparison
See the payment and total interest side by side for a specific loan amount.
- Mortgage Payment Calculator
Model both terms with taxes and insurance.
- Amortization Calculator
Watch how principal and interest split changes month by month.
- Prepayment Calculator
See how extra principal on a 30 year compares to a 15 year.
Frequently asked questions
Is the 15 year always cheaper in total interest?
Can a 30 year be paid off in 15 years?
Why is the 15 year rate usually lower?
Does a 15 year hurt mortgage qualification?
What about a 20 year?
Does prepaying a 30 year cost anything?
Other decision guides
Ready to talk it through?
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Mortgage Today is an educational brand and does not originate, broker, or fund loans of any kind. When you submit a request, we forward your information to a licensed loan officer in our network.