 TITLE: How Does Credit Card Interest Work? CONTENT: How to Avoid Paying Credit Card Interest\n----------------------------------------\nOf course, none of these interest rate calculations are relevant if your card issuer waives the interest charges. Nearly all card issuers won't impose interest charges when the entire statement balance is paid in full on or before the due date. The period of time between the statement closing date and the due date is called a grace period.\nTechnically, interest charges apply during this period, but they are waived if the entire balance is paid in full and on time. By law, credit cards that offer a grace period must give you at least 21 days to avoid interest by paying your balance in full. For more information, see \"What Is a Good APR for a Credit Card?\" END