Decision guide
15-Year vs 30-Year Mortgage: Which Is Better?
Both loans buy the same house. The difference is how fast you pay it off and how much of your monthly cash flow you commit. A 15-year loan usually has a higher payment and less total interest; a 30-year loan usually has a lower payment and more interest. The right choice depends on your budget, income stability and what else you would do with the monthly difference.
Side by side
| Factor | 15-year mortgage | 30-year mortgage |
|---|---|---|
| Monthly principal & interest | Higher | Lower |
| Total interest over the loan | Lower | Higher |
| Payoff speed | 15 years | 30 years |
| Monthly cash flow | Tighter | More flexible |
| Room to invest or save | Less monthly room | More monthly room |
| Risk if income drops | Higher payment risk | Lower payment risk |
Choose 15-year mortgage if…
- Your income is stable and the higher payment still leaves an emergency fund.
- You want the lowest total interest and plan to stay in the home.
- You are close to retirement and want the mortgage gone before fixed income.
Choose 30-year mortgage if…
- The higher payment would make your budget fragile.
- You want more monthly cash for investing, emergencies or other goals.
- Your income is variable or you may move before the loan is paid off.
Run your own numbers
The comparison above is qualitative. Use the free calculators for your actual figures.
Common questions
- Is a 15-year mortgage always better?
- No. It usually costs less in total interest, but the higher payment can crowd out savings and emergency funds. Compare the payment with your full budget, not just the interest savings.
- Can I prepay a 30-year mortgage?
- Usually yes, but check the lender’s prepayment rules. Extra principal payments can shorten the term and reduce interest without locking you into a higher required payment.
- Does this comparison include taxes and insurance?
- No. The comparison focuses on principal and interest. Property taxes, insurance, HOA dues and maintenance can change the monthly cost significantly.
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General information only, not financial, tax or legal advice. Rules and rates change; confirm with the official source or a licensed professional. Last reviewed 2026-11-11.