Question: How to I login to American Express credit card?
Answer: If you Amex was issued in the United States, go to American Express online, and enter your username and password. Once in your account, you can add new credit card account if it’s not already setup for you.
In order to login to your American Express credit card, you must have a American Express Online account.
For assistance, please call American Express at 1-800-528-4800 in the US.