The grace period for credit cards is the amount of time purchases or cash advances can remain on your bill without being charged interest. Grace periods vary but are generally 20 to 25 days, although some credit cards have no grace period.

Credit cards with a low interest rate and generous grace periods are the best choice. Grace periods vary from company to company, so it is worthwhile to research credit card offers to find the best one. Interest charges will apply once the grace period is over if you carry over a balance from month to month. The interest charges are computed based on the monthly interest rate and APR. The only way to avoid interest charges is to pay your balance in full every month, within the grace period limits.