APR vs. Interest Rate: What's the Difference?

When you shop for a loan, you'll see two percentages side by side: the interest rate and the APR. They're often different — and if you only look at the interest rate, you could pick the more expensive loan without realizing it.

Here's the difference, and why it matters.

The Short Version

• Interest rate = the yearly cost of borrowing the money, as a percentage of the loan amount.
• APR (Annual Percentage Rate) = the interest rate plus the fees and other costs of getting the loan, expressed as a yearly percentage.

In other words, APR is the "all-in" number. It tells you what the loan actually costs after factoring in origination fees, points, and other charges.

What Fees Does APR Include?

APR rolls in costs that the interest rate alone ignores, such as:

• Origination fees
• Discount points (prepaid interest to lower your rate)
• Mortgage broker fees
• Some closing costs

Because of these, the APR is always equal to or higher than the interest rate.

A Real Example: Two Loans, Same Rate, Different Cost

Imagine two $200,000 loans, both at 6% interest:

Both loans have the same monthly payment — but Loan B costs you $4,000 more to set up. The higher APR (6.4%) reveals that hidden cost. If you only compared interest rates, you'd think the two loans were identical.

How APR Is Calculated

APR takes your total borrowing cost — interest plus fees — and spreads it over the full loan term as an annual percentage. The formula is complex, which is why lenders are legally required to show it in a standardized way (in the U.S., under the Truth in Lending Act).

The key takeaway: when comparing loans, compare APRs, not just rates. The loan with the lower APR is usually the cheaper loan overall.

When the Interest Rate Matters More

APR is the fair comparison tool, but there's one exception: if you plan to pay off the loan early.

Why? Because APR spreads the upfront fees over the full loan term. If you sell the house or refinance in 3 years, those fees are concentrated into a short period — making the effective cost much higher than the APR suggests. In that case, focus on fees and the interest rate separately.

Frequently Asked Questions

Is APR always higher than the interest rate? Almost always, yes. APR includes the interest rate plus fees, so it's equal to or greater than the rate. If there are no fees at all, they can be identical.

Which should I compare when shopping for a loan? Compare APRs to see the true total cost. But also check the fees and your timeline — if you'll pay the loan off early, look closely at upfront costs, not just APR.

Does APR apply to credit cards? Yes. For credit cards, APR is the annual cost of carrying a balance — though it usually doesn't include annual fees, so it's a slightly different animal than mortgage APR.

Why is the mortgage APR different from my rate? Because the APR folds in closing costs and points, which are real costs of getting the loan that the rate alone doesn't capture.

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