15-Year Fixed vs 20-Year Fixed
Last updated July 2026
15-Year Fixed Mortgage
Faster payoff, lower rate, higher monthly payment
Advantages
- Rate typically 0.50-0.75% lower than 30-year fixed
- Pay off the loan in half the time
- Build equity dramatically faster
- Total interest paid can be 60-70% less than 30-year on the same loan
- Frees you from mortgage debt earlier
Drawbacks
- Monthly payment 30-50% higher than 30-year on the same loan
- Less monthly cash flow flexibility
- Qualifies you for a smaller loan amount
- Ties up more disposable income in the mortgage
20-Year Fixed Mortgage
Faster payoff than 30-year without the payment jump of 15-year
Advantages
- Rate typically 0.25-0.50% below 30-year
- Monthly payment ~10-20% higher than 30-year, not 30-50% like 15-year
- Payoff in 20 years builds equity faster
- Total interest much less than 30-year on same loan
- Middle ground between 15 and 30-year
Drawbacks
- Less common than 30-year, fewer lender options
- Higher payment than 30-year
- Rate savings vs 30-year smaller than 15-year vs 30-year
- Qualifies you for a smaller loan than 30-year
15-Year Fixed and 20-Year Fixed both play in mortgage rate structures, but they're aimed at different buyers. 15-Year Fixed is built for buyers with strong income who prioritize paying off the mortgage quickly and minimizing lifetime interest. 20-Year Fixed is built for buyers who want faster payoff than 30-year but can't or won't stretch to a 15-year payment. Which one fits depends on which of those descriptions sounds more like you.
Feature Comparison
| Feature | 15-Year Fixed Mortgage | 20-Year Fixed Mortgage |
|---|---|---|
| Rate Structure | Fixed for 15 years | Fixed for 20 years |
| Common Loan Terms | 15-year only | 20-year only |
| Initial Interest Rate | Typically 0.50-0.75% below 30-year | Typically 0.25-0.50% below 30-year |
| Rate Adjustment Schedule | Never, rate is locked | Never |
| Payment Predictability | 100% predictable | 100% predictable |
| Qualifying Loan Amount | Lower loan amount due to higher payment | Lower than 30-year, higher than 15-year |
| Payoff Speed | Full payoff in 15 years | Full payoff in 20 years |
| Total Interest Paid | 60-70% less than 30-year on same loan | Materially less than 30-year |
15-Year Fixed Mortgage Wins
15-Year Fixed takes it overall (8/10 vs 7/10), but 20-Year Fixed is still the sharper pick for buyers who want faster payoff than 30-year but can't or won't stretch to a 15-year payment.
15-Year Fixed's standout strength: Rate typically 0.50-0.75% lower than 30-year fixed. Its biggest drawback (monthly payment 30-50% higher than 30-year on the same loan) is easier to live with than 20-Year Fixed's (less common than 30-year, fewer lender options). 20-Year Fixed isn't out of the running though — its own standout strength is rate typically 0.25-0.50% below 30-year. If you fit the profile of buyers who want faster payoff than 30-year but can't or won't stretch to a 15-year payment, that alone can flip the decision.
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