How Your Credit Card Interest Is Actually Calculated
What Credit Card Interest Really Means: Credit card interest is the cost you pay for borrowing money from your credit card issuer. If you do not pay your full balance by the due date, the remaining amount begins to collect interest. Many people see interest charges on their statements but do not fully understand how those numbers are created. Credit card companies use a system based on your Annual Percentage Rate, commonly called APR. This rate represents the yearly cost of borrowing, but interest is not applied once a year. Instead, it is calculated daily.