A low APR is the top quality of a good credit card for those individuals that keep an outstanding balance on their credit card. An APR is the Annual Percentage Rate of the credit card, which is the interest rate that the credit card company charges you on the amount of money you owe on the card. The lower the APR (or Interest Rate), the more you save. This is why there is so much interest in 0 percent APR credit cards. A 0 percent APR credit card is meant to give you a break on credit card interest rates for a while to get you as a customer. People save money by transferring their existing credit card balance to a newer low APR credit cards. But the thing to remember is that a 0 percent APR does not last forever. Typically you will get 0% Interest for up to 12 months on all purchases and balance transfers. Because 0 and low percentage APRs dont last for more than a year the permanent APR should also be considered when choosing a credit card. Also besides APRs you should look at annual fee, charges for late payments, excess fees on cash advances, cost of transferring balances, and grace period when choosing a credit card.