If you have a U.S. Government Travel Charge Card (GTCC), you can pay your bill in a number of ways:
- Online: Log in to your account (through Citibank) at https://home.cards.citidirect.com/CommercialCard/ux/index.html#/login
- By Mail: Send payment to the following address: Citibank Government Card Services, PO Box 78025, Phoenix, AZ 85062-8025. Be sure you mail in the remittance slip from your paper statement and/or have your account number written on the check.
- By Phone: The phone number is 1-800-200-7056 to reach the automated account system.