Credit card interest is the part most people find confusing. Here are the pieces, one at a time, from the Consumer Financial Protection Bureau.
By the Exsura Team · October 17, 2026
The CFPB says “A credit card’s interest rate is the price you pay for borrowing money.” It is typically stated as a yearly rate called the annual percentage rate, or APR.
The CFPB describes the APR as “the standard way to compare how much loans cost.” It compares the interest rate and fees to the amount you borrow, over a one-year period. Card issuers must disclose the APR before you agree to use the card.
“Many credit card companies calculate the interest you owe daily, based on your average daily account balance.” The interest charged each day is called the daily periodic rate.
Because interest accrues daily, if you do not have a grace period, paying down your balance sooner reduces the interest you owe.
Cards often charge different rates for different kinds of balances, such as purchases, cash advances and checks written against the account. Your statement must show each category with its own APR and the amount of the balance that falls in each category.
The CFPB defines it: “A grace period is the period between the end of a billing cycle and the date your payment is due.” If your card has a grace period and you pay the full balance by the due date each month, you can generally avoid interest on purchases.
The CFPB is direct about it: “You do not have to pay any more than the minimum amount shown on your statement.” Paying more reduces the interest you owe over time.
Each statement also shows how much you would need to pay each month to pay off your current balance in 36 months. That figure is based on your current balance and does not take into account any future purchases.
When you pay more than the minimum but less than the full balance, the issuer generally applies the amount above the minimum to the balance with the highest interest rate first, then works down through the others.
Some offers promise no interest on a purchase if you pay it off within a set time, such as 12 months. The CFPB explains that you will not owe interest on the purchase if you pay it off in time.
If you do not, “you will be charged interest on that balance,” and “you would owe all of the interest back to the original date of the charge.” Being more than 60 days late on a minimum payment can also cost you the promotion: “you could lose the deferred interest period.”
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No. The CFPB says you do not have to pay any more than the minimum amount shown on your statement. Paying more reduces the interest you owe over time.
No. The CFPB says credit card companies are not required to give a grace period, and grace periods typically apply only to purchases, not cash advances.
It is a promotion that lets you avoid interest on a purchase if you pay it off within a set time. If you do not, interest is charged on the balance, back to the original date of the charge.
APR is the annual percentage rate. The CFPB calls it the standard way to compare how much loans cost, and it reflects the interest rate and fees over one year.
Sources last checked October 17, 2026. This article is general education, not financial, legal or medical advice. Rules, fees and programs change, so confirm details with the organization before you act.
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