The American Express Platinum Card is traditionally a "charge card," meaning the basic expectation is that you pay your balance in full every month. However, Amex has modernized this by adding the "Pay Over Time" feature, which allows eligible cardholders to carry a balance on certain purchases over $100 with a set interest rate. If you have this feature active, your statement will show a "Pay Over Time Limit." Any spending beyond that limit must still be paid in full by the due date. While this provides the flexibility of a traditional credit card, it is generally advised to avoid carrying a balance because the interest rates on the Platinum card are often higher than standard credit cards. If you do not use "Pay Over Time," failing to pay the full balance can result in significant late fees and a temporary suspension of your purchasing power until the account is settled.