Glossary term

Annual Percentage Rate (APR)

Annual percentage rate (APR) is the yearly cost of borrowing expressed as a rate, helping consumers compare loans and credit products beyond the stated interest rate alone.

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Written by: Editorial Team

Updated

April 21, 2026

What Is Annual Percentage Rate (APR)?

Annual percentage rate, or APR, is the yearly cost of borrowing expressed as a rate. It is designed to help consumers compare loans and credit products beyond the stated interest rate alone. A borrowing product can look cheaper than it really is if the borrower focuses only on the note rate and ignores other required costs.

APR is especially useful in mortgage shopping because lenders can present similar rates with very different fee structures. That makes APR one of the clearest comparison tools on a Loan Estimate.

Key Takeaways

  • APR is a borrowing-cost measure expressed on an annual basis.
  • It helps consumers compare loans and credit products more consistently.
  • APR is often broader than the simple interest rate because it can reflect certain fees and finance charges.
  • Consumers commonly see APR on credit cards, mortgages, auto loans, and personal loans.
  • APR is different from APY, which is used for deposit-account earnings.

How APR Works

A lender may advertise an interest rate, but the full borrowing cost can also depend on finance charges and required loan costs. APR is the standardized rate used to express that annual borrowing cost more completely. The precise calculation can vary by product type and disclosure rules, but the consumer purpose is the same: make it easier to compare borrowing options on a more apples-to-apples basis.

A simplified way to think about APR is:

APR = annualized borrowing cost including interest and certain required finance charges

APR often becomes one of the most important disclosure figures when evaluating a credit product.

APR Versus Interest Rate

APR and interest rate are related but not identical. The interest rate is the rate charged on the principal balance. APR is the broader annual borrowing-cost disclosure. In some products the difference may be small. In others, the gap can be meaningful because of fees or financing structure.

Measure

What it tells you

Interest rate

The base rate charged on the balance

APR

The annualized borrowing cost including certain required charges

This distinction is why a low advertised rate does not always mean a loan is the cheaper option.

How APR Changes Loan Comparison

APR is especially useful in mortgage shopping because a lower mortgage rate can still come with higher points or other upfront charges. Borrowers comparing lenders need to know not just the note rate, but how the pricing package changes the effective borrowing cost.

That is why borrowers should compare APR, rate, points, credits, and cash-to-close together rather than relying on the headline rate alone.

APR Versus APY

APR is also often confused with APY. APR generally describes what borrowing costs. APY generally describes what deposit accounts earn. They are both annualized comparison tools, but they apply to different sides of personal finance.

The Bottom Line

Annual percentage rate is the annualized cost of borrowing expressed as a rate. It helps consumers compare loans and credit products more realistically than a simple interest-rate quote alone, especially when fees and finance charges differ across offers.