Credit Card Rates and Fees, Explained

What Is APR?

APR stands for Annual Percentage Rate. It represents the cost of borrowing on a credit card, expressed as a yearly rate. When you carry a balance from month to month, the APR is used to calculate the interest you owe.

APR is not the same as the interest rate on a simple loan. Credit card APRs typically include not only interest but also certain fees, and they are applied to balances in a way that can compound if you don't pay in full.

For everyday use, the APR tells you how expensive it is to carry a balance. A higher APR means higher interest charges on any unpaid amount. Credit card issuers are required to disclose the APR before you apply, usually in a table known as the Schumer Box.

A good APR depends on your creditworthiness and the current rate environment. APRs vary widely; cards for excellent credit often offer lower rates, while cards for lower credit scores may have higher rates. The best APR is one you can avoid entirely by paying your balance in full each month.

A penalty APR is a higher interest rate that the issuer can apply if you violate the card terms, most commonly by making a late payment or having a payment returned. It may apply to new purchases and sometimes to the entire balance. The issuer will disclose the penalty APR in the card agreement and may review your account periodically to decide whether to revert to the standard APR.

• APR is the yearly cost of borrowing on a credit card.
• Interest is charged on balances you carry past the due date.
• The APR does not include all fees, like late fees or foreign transaction fees.

Types of APRs

Credit cards can have different APRs for different types of transactions. The most common are:

Purchase APR: the rate applied to everyday purchases you make with the card.

Balance Transfer APR: the rate applied to balances you move from another card.

Cash Advance APR: usually higher than the purchase APR and often has no grace period, meaning interest starts accruing immediately.

Penalty APR: a higher rate that can be triggered by a late payment or other violations of the card agreement. This rate may apply to new transactions and sometimes to your existing balance.

• Introductory APRs (teaser rates) are temporary and revert to a standard APR after a set period.
• Variable APRs are tied to an index, like the prime rate, and can change over time.
• Fixed APRs can still change under certain conditions, like if you miss payments.

How APR Is Calculated

Credit card interest is typically calculated using the daily periodic rate, which is the APR divided by 365. Each day, the issuer multiplies your balance by this daily rate and adds the result to your balance, so interest can compound if you don't pay it off.

For example, if your APR is 18%, the daily periodic rate is approximately 0.0493% (18 ÷ 365). If you carry a $1,000 balance for a month, you'd be charged about $15 in interest at that rate (given no other charges).

Most cards offer a grace period—often a few weeks—between the end of a billing cycle and the payment due date. If you pay your full statement balance by the due date, you won't be charged interest on new purchases. However, grace periods usually do not apply to cash advances or balance transfers.

If you carry a balance, interest is charged on your average daily balance. This is calculated by adding up your balance for each day in the billing cycle and dividing by the number of days. The daily periodic rate is then applied to that average.

• Daily periodic rate = APR ÷ 365.
• Interest is usually based on your average daily balance.
• Paying the full statement balance each month avoids interest on purchases.

Common Fees

Beyond interest, credit cards often charge various fees. Being aware of them can help you compare cards and avoid unnecessary costs.

Annual fee: a yearly charge for the privilege of having the card. Not all cards have one; many perks-focused cards do.

Foreign transaction fee: typically 1%–3% of each transaction made in a foreign currency or with a foreign merchant.

Balance transfer fee: often 3%–5% of the amount transferred, charged when you move a balance from another card.

Cash advance fee: a percentage (often around 5%) of the cash advance, plus a minimum dollar amount. Interest also accrues immediately, and cash advance APR is usually higher.

Late payment fee: charged when you don't make at least the minimum payment by the due date. The exact amount can vary by card and by how late the payment is.

Over-the-limit fee: if you opt in to transactions that exceed your credit limit, the issuer may charge a fee. These fees have become less common due to regulations.

• Annual fees can be $0 to several hundred dollars.
• Foreign transaction fees are often 3% but can be avoided with certain cards.
• Balance transfer fees can make a transfer expensive, so calculate before you transfer.

Penalty Fees

Penalty fees are charges triggered by specific actions, like missing a payment or exceeding your credit limit.

The most common penalty is a late payment fee. Late fees are regulated and vary by issuer; you can find the exact amount in the Schumer Box.

A penalty APR is a higher ongoing interest rate that can be applied if you make a late payment or if your payment is returned. The penalty APR can be significantly higher than the standard APR, and it may last for several months or longer. Issuers are required to give you a written notice at least 45 days before increasing your APR, and they are required to review your account periodically to consider reverting to the standard APR.

• Late payment fees are regulated, but actual amounts vary by issuer.
• Penalty APRs are some of the highest rates on credit cards.
• You can often avoid late fees by setting up automatic minimum payments, but check terms.

Reading the Schumer Box

The Schumer Box is a standardized table that appears in credit card applications and agreements. It summarizes key rates and fees in plain language, making it easier to compare cards.

The table typically shows:

APRs for purchases, balance transfers, and cash advances, each showing the rate and any applicable introductory periods.

Grace period for purchases, which tells you how many days you have to pay off your balance before interest starts.

Annual fee, if any.

Other fees: balance transfer fees, cash advance fees, foreign transaction fees, late payment fees, and returned payment fees.

Penalty APR and how it can be triggered.

When comparing cards, focus on the purchase APR (if you expect to carry a balance), the annual fee, and any fees you are likely to incur based on how you plan to use the card.

• The Schumer Box is required by federal law and is found on every application.
• Look for the grace period—it's not always listed as a number, but it's often a few weeks for most cards.
• Compare the APR range shown, which reflects variable vs. fixed rates.
• Check the penalty APR and late fee amounts, as they can be significant.

APR Types at a Glance

The table below summarizes the common APR types and typical characteristics. Exact rates and terms vary by card and are always disclosed in the Schumer Box.