APR stands for Annual Percentage Rate — it’s the interest rate you’re charged when you carry a balance on your credit card. The average credit card APR is around 20–24%, which makes carrying a balance one of the most expensive financial decisions you can make.
How APR actually charges you
Even though it’s called an “annual” rate, credit card interest is calculated daily. Your APR is divided by 365 to get a daily periodic rate. If your APR is 22%, your daily rate is about 0.060%. That rate is applied to your average daily balance each day you carry a balance.
The secret most people don’t know
If you pay your full statement balance every month, you pay zero interest — regardless of your APR. APR only matters when you carry a balance. This is why treating your credit card like a debit card (spend what you have, pay in full) is the right approach.
Types of APR on a credit card
Most cards have multiple APRs: a purchase APR (for regular transactions), a cash advance APR (usually much higher, around 25–30%), a penalty APR (charged when you miss payments, can be up to 29.99%), and sometimes a promotional 0% intro APR for new cardholders.
How to use 0% intro APR
Many cards offer 0% APR for 12–21 months on new purchases or balance transfers. This can be powerful for paying off existing debt or financing a large purchase interest-free — as long as you pay off the full balance before the promotional period ends.
How to get a lower APR
The best way to get a lower APR is to have a higher credit score — better scores qualify for better rates. You can also call your card issuer and ask for a rate reduction. It works more often than you’d think, especially if you’ve been a customer for a while and paid on time.