Generally speaking, the credit card is valid for three years. You can find the expiration date of the credit card under the card number. The date format marked on the card is that the month is before and the year is after. For example, the format marked on the card surface is: 03/20, indicating that your credit card is valid in March 2020.

One month before the validity of the credit card, the bank credit card center will automatically reissue the new card for the customer, and it is completely free to reissue the new card when the credit card expires. The credit card center will mail the new card to the customer's billing address by registered mail, without taking the initiative to handle any business. The old card is invalid after the expiration date marked on the card, but the magnetic stripe of the card may still contain personal information, so it is recommended to keep it properly.