You may wonder: is APR the same as interest rate? When it comes to credit cards, the answer is yes.

Many loans have a separate interest rate and APR, with the APR wrapping in loan fees on top of the rate. Credit cards work differently. Here, APR and interest rate are synonymous. Cards often charge fees on top of that rate, but those fees aren't part of the APR figure itself.

If you don't use your account, or you pay off what you charge each month, you won't pay your card's APR at all. But if you carry a balance month to month, pay it off as soon as you can. The interest adds up fast.

"APR typically compounds on a daily basis, so the longer you carry a balance, the more interest you'll pay. So, if you start building up a balance, the entire amount you owe starts to accrue interest, not just the face value of what you purchased," says R.J. Weiss, certified financial planner (CFP®) and founder of The Ways to Wealth.

A higher APR means a higher bill when you carry a balance. But your rate likely won't stay put for long, since most cards carry a variable interest rate. "Most credit card companies tie [APRs] to the federal funds rate, so if [that] changes, your APR can also change throughout the year," reminds Weiss.

Here's a simple credit card APR calculation to show what carrying a balance actually costs you, day by day. Say you made a $500 purchase, your APR is 20%, and you carried that balance for 30 days.

Your average daily balance is $16.67 ($500 divided by 30 days). Your daily periodic rate is 0.05% (your 20% APR divided by 365 days). Multiply the two and your debt costs $0.83 per day.

Over the month, that's $24.90 in interest. Your $500 purchase ends up costing you roughly $525 total, assuming you don't carry the balance into another month.

Types of Credit Card APRs

Your card likely charges several different APRs depending on how you use it:

• Purchase APR: what you pay when you use the card for goods and services

• Cash advance APR: what you pay on any cash you pull from your credit line

• Balance transfer APR: what you pay on debt you move over from another card

• Penalty APR: a higher rate triggered by a missed payment, which can stick around for months

• Promotional APR: often 0% for a limited time after you open an account, make a big purchase, or transfer a balance

Not every card charges every type. A card that doesn't allow cash advances or balance transfers won't have APRs for those.

The type of card you carry affects your APR. Weiss says easier-to-get cards, like store credit cards, tend to run higher. "As a general rule of thumb, if it's not advertised as a low-APR card, it's going to have a higher APR," he says. Balance transfer cards tend to buck that trend, offering low promotional rates to lure your existing debt over.

How is Credit Card APR Determined?

APR can vary from person to person on the exact same card. Yours will fall somewhere in a published range, like 17% to 22%. "Generally, the better your credit score and credit history, the lower the APR will be on the card," Weiss says. "However, credit card companies may weigh other variables they know about you besides your credit score, such as your income or history with their products. So, it's not standalone credit-score-based."

According to the Federal Reserve, the average credit card APR was 22.80% as of November 2024. [EDITOR NOTE: check Federal Reserve G.19 release for a more current average before publishing, since this figure is over a year old.]

"Good" depends entirely on what you're comparing it to. A 23% APR looks great next to a 29.99% card. That same 23% looks expensive next to a 0% promotional rate on a balance you just transferred.

How to avoid paying credit card APR

The simplest fix is paying your full balance every billing cycle. Beyond that:

• Use a promotional APR offer for a big purchase, but pay it off before the promo period ends

• Consolidate high-interest debt with a balance transfer card or low-interest personal loan (you'll generally need good credit to qualify)

• Ask your issuer for a rate reduction if your credit score has improved and you've been a reliable customer

• Apply for a new card with a lower APR, since many issuers offer promotional rates to new customers

Bottom line

APR can get expensive fast, but it's manageable. Keep your credit score strong, pick cards with a low APR, and keep your balance as low as you can, and you get the benefits of a credit card without paying for the privilege.

What's the difference between APR and APY?

APR is what you pay in interest on a credit card balance each year. APY, or annual percentage yield, is the opposite side of the coin: it's what you earn on a deposit account, like a high-yield savings account or CD.

Where can I find my credit card's APR?

Check your billing statement, log into your account online, or call customer service. Your APR was also disclosed during the application process and in the paperwork you got after opening the account.

What's the lowest credit card APR?

0%. You'll typically only see this rate through a promotional offer for new account holders, purchases, or balance transfers, and only for a limited time.

Where We Got Our Information

• Federal Reserve — average credit card interest rate data

• Interview with R.J. Weiss, CFP®, founder of The Ways to Wealth