Short answer
It comes down to the monthly payment you're comfortable with. A 15-year loan has a higher monthly payment, but you pay interest for half as long and the rate is usually lower, so the total cost is lower. A 30-year loan has a lower monthly payment, which leaves more room in your budget, but costs more over the life of the loan. Comparing Loan Estimates for both terms shows the real numbers.
How do they compare?
| 15-year | 30-year | |
|---|---|---|
| Monthly payment | Higher | Lower |
| Interest rate | Typically lower | Typically higher |
| Total interest paid | Lower | Higher |
| Equity builds | Faster | Slower |
Source: Consumer Financial Protection Bureau. Terms like 20 or 25 years fall in between.
Who tends to pick each one?
A 15-year loan suits buyers with steady income and a comfortable cushion who want the home paid off sooner, for example before retirement. A 30-year loan suits buyers who want the lowest required payment, are stretching to afford a home in a higher-priced town, or want money free for savings, other goals or repairs. A higher payment also raises your debt-to-income ratio, so a 15-year loan can lower the price you qualify for.
Is there a middle path?
Many people take a 30-year loan and pay extra toward principal when they can. That keeps the required payment low but can shorten the loan a lot. The extra is optional, so a tight month isn't a problem. Try it with the mortgage payoff calculator, and see paying extra on your mortgage.
Can I switch later?
Yes, by refinancing into a shorter term, though that means new closing costs and qualifying again. See when it makes sense to refinance.
Sources
Checked November 2, 2026. Rules and dates change, so confirm current details before you rely on them.
General information only, not tax or legal advice. Program availability, eligibility and terms vary by lender and are subject to change and to underwriting approval. Not a commitment to lend.