To add an American Express Platinum card authorized user, log in to your online account and click the “Account Services” tab, or call customer service at 1 (800) 528-4800. You will need to provide the person's full name, Social Security number, and date of birth to add them as an authorized user.
A primary cardholder can make anyone an American Express Platinum card authorized user, as long as they are at least 13 years old.
How to Add an American Express Platinum card Authorized User Online
Log in to your American Express Platinum card account.
- Click the “Account Services” tab.
- Click “Add Someone to Account” under the “Manage Additional Card Members” menu.
- Enter the user’s full name, Social Security number, and date of birth.
- Click “Agree & Submit.”
When you add an American Express Platinum card authorized user, they will receive their own card, sent to your mailing address, within 14 days of being added to the account. The authorized user’s card will be linked to your account and will have full access to the account’s credit limit. American Express authorized users are able to make purchases, earn rewards, use the Amex app, and make payments. However, they cannot redeem rewards or set their spending limit.
In addition, any purchases an authorized user makes on the account will appear on your statement, and as the primary cardholder, you are responsible for all purchases on the account. American Express reports account information to all three of the major credit bureaus, which affects not only the user’s credit history, but also the primary cardholder’s. Authorized users may be removed from an account at the user’s or primary cardholder’s request at any time, and for any reason.
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