15-Year vs. 30-Year Mortgage: Compare Payment and Interest
A shorter mortgage term generally means a higher required monthly principal-and-interest payment and less time paying interest. A longer term usually lowers the required payment but can increase total interest.
Updated October 14, 2026 · Educational information
The right comparison is not just “which has the lower payment?” Consider the payment you can sustain, the interest cost, fees, emergency savings, and how each option fits your other financial goals. Rates and pricing may differ by term and lender.
Run both terms with comparable assumptions
Use the same loan amount and compare available rate quotes for each term. Note the monthly payment and total scheduled payments. Then add taxes, insurance, mortgage insurance, HOA dues, and maintenance to understand affordability.
Understand the tradeoff
A 15-year loan pays principal faster, so it typically costs less interest over the scheduled life of the loan. Its required payment is higher, which leaves less monthly flexibility. A 30-year loan spreads repayment out and typically costs more interest if held to term.
Compare quotes beyond the rate
Review APR, points, lender fees, cash to close, and whether a quoted rate assumes discount points. Use official Loan Estimates for the same type of loan and compare them side by side.
Protect your flexibility
A lower required payment can preserve cash for repairs or savings. A higher payment can be manageable if the rest of your budget is resilient. Extra principal payments may be an option, but check your loan terms and avoid draining your reserve.
Common questions
Does a 15-year mortgage always have a lower rate?
Not always. Pricing varies by lender, market, points, and borrower. Compare current written offers.
Can I compare monthly payment alone?
No. Compare total interest, fees, cash to close, monthly budget, and how long you expect to keep the loan.
Sources and further reading
Related tools and guides
This guide is general education, not individualized financial, legal, or tax advice. Product terms, costs, and personal circumstances vary. Verify details with official documents and current providers before acting.