Last updated: October 5, 2026 · Rates and fees in the example are illustrations, not quotes.
Every mortgage offer shows two percentages: the interest rate and the APR. They answer different questions. The interest rate sets your monthly payment. The APR (annual percentage rate) adds the upfront cost of getting the loan, so you can compare offers with different fees. Using both, plus how long you will keep the loan, gives you the real answer.
The difference in one sentence each
- Interest rate: the yearly cost of borrowing the loan amount. It determines principal-and-interest payments.
- APR: the interest rate plus certain finance charges, such as points, origination fees and mortgage insurance, spread over the life of the loan and expressed as a yearly rate.
Example: two offers on a $300,000 loan
| Lender A | Lender B | |
|---|---|---|
| Interest rate | 6.50% | 6.75% |
| Points and lender fees | $6,000 | $1,000 |
| Monthly P&I | $1,896.20 | $1,945.79 |
| APR | 6.695% | 6.783% |
Lender A has the lower APR, so it is cheaper if you keep the loan for its full term. But it costs $5,000 more upfront to save $49.59 a month.
Why time matters more than APR
Counting upfront fees, payments made and the balance you would still owe, here is the total cost of each offer if you sell or refinance after a given number of years:
| Keep the loan | Lender A cost vs. Lender B |
|---|---|
| 3 years | $2,742 more |
| 5 years | $1,230 more |
| 7 years | $279 less |
| 10 years | $2,525 less |
| 30 years | $12,852 less |
Lender A becomes the better deal only after about six to seven years. If there is a good chance you will move or refinance before then, Lender B is cheaper despite its higher APR. This is the same trade-off as buying mortgage points.
What APR includes and excludes
- Usually included: interest, discount points, origination and underwriting fees, mortgage broker fees and mortgage insurance.
- Usually excluded: appraisal, credit report, title insurance, recording fees and other third-party costs. Review them separately in your closing costs.
APR on adjustable-rate loans
For an ARM, the APR is calculated using assumptions about future rates, so it says little about what you might actually pay after the fixed period. Focus on the caps and the maximum possible payment instead. See ARM vs. fixed-rate mortgage.
How to compare offers
- Get Loan Estimates from at least three lenders on the same day.
- Compare the interest rate, the APR and the “Loan Costs” section.
- Decide how long you are likely to keep the loan.
- Calculate when the lower-rate option breaks even, then choose.
Check the monthly payment at each rate in our mortgage calculator, and see what 1% extra interest costs over time.
Frequently asked questions
What is the difference between APR and interest rate?
The interest rate is the cost of borrowing the loan amount, used to calculate your monthly payment. The APR adds certain upfront costs, such as points and lender fees, and expresses the total as a yearly rate, so it is usually higher than the interest rate.
Is a lower APR always better?
Not always. APR assumes you keep the loan for its full term. If you sell or refinance early, a loan with a slightly higher rate and lower upfront fees can cost less, even with a higher APR.
What fees are included in APR?
APR generally includes interest plus finance charges such as discount points, origination fees and mortgage insurance. It usually excludes costs like appraisal, title and recording fees.
Where do I find the APR on my loan offer?
On page 3 of your Loan Estimate, in the Comparisons section, along with the Total Interest Percentage and the amount you will have paid in five years.
Sources: CFPB: Mortgage interest rate vs. APR; CFPB: Buying a House. Example calculations by ToolStackIA.
This article is for educational purposes only and is not financial advice. Loan programs, rates and rules change; confirm details with your lender or a HUD-approved housing counselor.