American Express Credit Cards are a convenient way to pay for everyday purchases. A credit card is a lending product, when you make a transaction using your Card, American Express is lending you that amount. As a Cardmember, you have flexibility when paying your monthly bill. You can choose to pay your balance in full by the payment due date or you can spread your payments out over a longer period of time.
When interest is charged
If you pay your balance in full so that we receive your payment by the payment due date, interest will not be applied to any of your purchases. If you choose to carry a balance, or if we receive your payment late, interest charges are calculated and charged to your account. Interest is charged on balance transfers and cash advances from the day the transaction occurs.