Customers using American Express gift cards can check their card balances and transaction histories on the American Express website. To find out their cards' remaining value, customers can enter their gift card numbers in the search box that appears after clicking "Check Balance."
American Express gift cards have no additional charges after purchase and activation, and the funds on the card do not expire, although the card itself has an expiration date. If a gift card expires, the customer can contact American Express for a new card. For this reason, customers should keep their card information on file, recommends American Express.