What does APR mean on a credit card

Read an APR as the yearly price of carrying a balance, and avoid paying it by clearing the full statement balance by the due date.

High-quality close-up of credit and debit cards. — Photo: Towfiqu barbhuiya / Pexels

Area: MoneyFrom age 16Time to learn: 20 minutes

A credit card's APR is the yearly interest rate it charges on balances you carry. Divide it by 365 to get the daily rate and multiply by your balance to see the cost; APY is a different number that includes compounding and is used for savings.

Why it matters

Card interest is quoted as a yearly rate but charged daily, so a percentage that looks small adds up. In the second quarter of 2026, US bank credit card accounts that were charged interest paid an average rate of 22.15 percent. Turning an APR into dollars shows what carrying a balance really costs.

How to do it

Find the APRs on your statement or cardholder agreement. One card can have several: a purchase APR, a cash advance APR, a balance transfer APR, a penalty APR, and an introductory rate with an end date.
Know what the number means. For a loan, the APR is the interest rate plus certain fees, expressed as a yearly rate, which is how APR differs from the interest rate. For a credit card, the APR is the yearly interest rate the issuer charges.
Find the daily rate by dividing the APR by 365; some issuers use 360. At 22.15 percent, that is about 0.0607 percent a day.
Estimate a month: balance × daily rate × days in the billing cycle. A $1,000 balance at 22.15 percent for 30 days costs about 1,000 × 0.000607 × 30, or about $18.
Estimate a year: balance × APR. Carrying $1,000 at 22.15 percent for a year costs about $222 in simple interest, and about $248 if you make no payments, because interest is added to the balance each day and is then charged interest itself.
Tell APR from APY. APY, the annual percentage yield, shows what a savings account pays over 365 days including compounding, so it is equal to or higher than the plain rate. Banks quote APY for what savings earn; card issuers quote APR for what borrowing costs.
Use the grace period. On most cards, if you pay the full statement balance by the due date, you pay no interest on purchases. In the US, issuers do not have to offer a grace period, but your statement must arrive at least 21 days before the due date. In Canada, federally regulated issuers must give a grace period of at least 21 days. If you carry a balance, interest is charged on the unpaid amount until it is paid off.
Treat cash advances separately. They usually have a higher APR and no grace period, so interest starts the day you take the cash.

Common mistakes

Comparing a card's APR with a savings account's APY as if they were the same kind of number.
Paying only the minimum and assuming the rate is small. At about 22 percent, every $1,000 carried costs about $18 a month.
Missing the end date of an introductory 0 percent APR; the regular rate applies to whatever balance is left.
Taking a cash advance on a credit card, which starts charging interest immediately.

You can do this when …you can look at any card statement and say, in dollars, what the balance would cost over a month and over a year if you left it unpaid.