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What Is APR and How Does It Affect Your Mortgage?

Mortgage APR reflects the interest rate plus the fees charged by the lender. APR helps you compare mortgage offers.

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Updated · 2 min read
Robin Rothstein
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Contributing Writer
Chris Jennings
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Annual percentage rate, or APR, reflects the true cost of borrowing. Mortgage APR measures costs including the interest rate, points and fees charged by the lender. APR is higher than the interest rate because it encompasses all these loan costs.
Here’s a primer on the difference between APR and interest rate, and how to use it to evaluate mortgage offers.
» MORE: Looking for information on credit card APR?
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Interest rate vs. APR

Knowing the APR helps you compare offers as you choose the best mortgage lenders to work with.
  • Interest rate: The percentage that reflects the basic cost a lender charges annually for lending you money. 
  • APR: The interest rate plus the fees you paid directly to the lender or broker or both (i.e. origination charges, discount points and any other costs). It’s calculated using a formula found in Appendix J of Regulation Z, also known as the Truth in Lending Act, which requires lenders to disclose loan charges and fees.
Mortgage fees add to the cost of the loan, and APR takes them into account. That's why APR is higher than the interest rate.

Calculate your mortgage APR

You don’t have to wait for a Loan Estimate to get a sense of your total loan costs on top of the basic interest rate. Plug various rates, costs and fees into our APR calculator to compare scenarios before submitting your loan application.

APR comparison

APR is a tool that lets you compare mortgage offers that have different combinations of interest rates, discount points and fees. Comparing APRs is most useful when you plan to keep the loan for more than five or six years. That's because the APR calculation assumes that you'll keep the loan for its entire term. But not every borrower does that. Most people sell the home or refinance the loan before it's paid off.
As a hypothetical example, let's say you're comparing two offers on a $200,000 loan for 30 years:
  • Loan A: You could borrow $400,000 with an interest rate of 6.5%, paying a 1% origination fee of $4,000, with no discount points and $2,000 in other fees. Total fees: $6,000.
  • Loan B: You could buy a discount point to reduce the interest rate. In this offer, you could borrow $400,000 with an interest rate of 6.25%. You would pay a 1% origination fee of $4,000, another $4,000 for one discount point and $2,000 in other fees. Total fees: $10,000.
Bottom line: Loan A has a higher interest rate and lower fees, while Loan B has a lower interest rate and higher fees, so how do you compare them?. As you see in the table below, Loan B has a lower APR, which means that you would end up paying less over the 30-year life of the loan when you include principal, interest and upfront fees.
Loan A
Loan B
Interest rate
6.50%
6.25%
Lender fees
$6,000
$6,000
Discount point
None
$4,000
APR
6.64%
6.49%

Mortgage loans from our partners

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How long you have the loan matters

The loan with the lower APR costs less over the mortgage's 30-year term. But what if you plan to keep the loan for less than that?
Loan A, without discount points, costs less in the first five years and one month. Loan B, with discount points, begins to cost less when you have the loan for longer than five years and two months.
Loan A total costs
Loan B total costs
3 years
$97,018
$98,663
5 years
$157,696
$157,772
5 years, 1 month
$160,225
$160,235
5 years, 2 months
$162,753
$162,698
10 years
$309,393
$305,544
30 years
$916,178
$896,633
In this example, the break-even period for paying points is five years and two months, meaning it will take that long to see the savings from paying those points. Not every loan has the same break-even period, which varies depending on the loan amount, interest rates and cost of fees and discount points.
APR is useful for comparison in some cases, but not all. Fortunately, there's another way to compare loan offers. It's in a section of the Loan Estimate that calculates how much the loan will cost in the first five years.
» MORE: Find a lender and get preapproved for a home loan

Using the Loan Estimate to compare mortgage offers

Within three business days of applying for a mortgage, your lender must provide you with a three-page document called a Loan Estimate. Page 3 of the Loan Estimate has a "Comparisons" section that lists not only the APR but also how much the loan will cost you when you reach the five-year mark, and includes:
  • 60 months of paid principal 
  • 60 months of paid interest
  • Fees you paid to get the loan
  • Mortgage insurance (if applicable)
Did you know...
In addition to the Loan Estimate, lenders are required to give you a Closing Disclosure, a five-page form that shows the actual costs of your loan. You’ll receive your Closing Disclosure three business days before your scheduled closing date. Always compare the Closing Disclosure to the Loan Estimate to ensure the terms and costs align with your expectations. If you have questions or see errors, you should contact your lender immediately.
In the earlier example, Loan A (6.64% APR) would cost $157,696 in the first five years, and Loan B (6.49% APR) would cost $157,772. So Loan A would cost $76 less in the first five years. Even though Loan A has a higher APR, it would be the better deal if you kept the loan for only five years.
When you get multiple loan offers, line up the "Comparisons" sections of the Loan Estimates side by side to help you decide.
» MORE: Compare mortgage rates

Mortgage loans from our partners

NBKC

on NBKC

NBKC

4.5

NerdWallet rating
Min. credit score

620

Min. down payment

3%

New American Funding

on New American Funding

New American Funding

4.0

NerdWallet rating
Min. credit score

N/A

Min. down payment

0%

GO Mortgage

on GO Mortgage

GO Mortgage

4.0

NerdWallet rating
Min. credit score

620

Min. down payment

3%

COMPARE MORE LENDERS
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