Your browser is out of date and not supported. We recommend you update your browser for a better online banking experience. Learn More

International Customers?

Find Citibank information for the countries we serve.

Credit Cards

Phone Numbers

  • Citi ® Consumer and College Student Cards

    Online Technical Assistance

    1-800-347-4934

    For help accessing your online Citi Consumer or College Student Card account.


    TTY: 1-800-325-2865

    CitiBusiness ® and Professional Cards

    Online Technical Assistance

    1-866-422-3091

    For help accessing Citi Online for your CitiBusiness or Professional credit card.


    TTY: 1-800-325-2865
  • Lost or Stolen Credit Cards or General Account Information

    1-800-950-5114
    TTY: 1-800-325-2865

    Outside the U.S. -- Call Collect

    1-605-335-2222
  • Internet Security Specialists

    1-888-285-9696

    Call us if you think you have received a fraudulent email or to report suspicious account activity.


    TTY: 1-800-325-2865
  • Costco Credit Card Application Status

    1-877-343-4118
    TTY: 1-866-210-0617
  • Credit Card Application Status

    1-888-201-4523
    TTY: 1-800-325-2865
  • Servicio al cliente español

    1-800-947-9100
    TTY: 1-800-325-2865
View More


Note: TTY/TDD phone services for the hearing impaired.

Mailing Addresses

  • Citi Consumer Cards

    Payments by Regular Mail 1

    Citibank / Choice
    BOX 9 0 0 1 0 3 7
    Louisville , 4 0 2 9 0-1 0 3 7

    CitiBusiness® Cards and CitiBusiness® Card with Citi® ThankYou® Rewards

    Payments by Regular Mail 1

    CitiBusiness® Card
    BOX 9 0 0 1 0 3 7
    Louisville , 4 0 2 9 0-1 0 3 7
  • Overnight Delivery / Express Payments

    Citibank
    Express Payments
    6 7 1 6 Grade Lane
    Building 9, Suite 910
    Louisville, 4 0 2 1 3

    Overnight Delivery / Express Payments

    CitiBusiness® Card
    Express Payments
    6 7 1 6 Grade Lane
    Building 9, Suite 910
    Louisville, 4 0 2 1 3
  • General Correspondence

    Citibank Customer Service
    Box 6 5 0 0
    Sioux Falls, 5 7 1 1 7

    General Correspondence

    CitiBusiness® Customer Service
    Box 6 2 3 5
    Sioux Falls, 5 7 1 1 7-6 2 3 5
View More
1Citi® Cards
Crediting of Payments by Mail:
If we receive your payment in proper form at our processing facility by 5 p.m. local time there, it will be credited as of that day. A payment received there in proper form after that time will be credited as of the next day. Allow 5 to 7 days for payments by regular mail to reach us. There may be a delay of up to 5 days in crediting a payment we receive that is not in proper form or not sent to the correct address.

Proper Form:
For a payment sent by mail or courier to be in proper form, you must:
• Enclose a valid check or money order. No cash or foreign currency please.
• Include your name and last four digits of your account number on the front of your check or money order.
Sign On to your credit card account to help us serve you better
What is the National Investor Center?

Learn more about the National Investor Center
Professional investment support when you have questions or want another opinion.
What is a Relationship Manager

What is a Relationship Manager
Your Citigold® Relationship Manager (RM) helps to simplify banking with personalized guidance, regular updates and attention to your priorities.
  • Assists with everyday banking and financial needs
  • Helps simplify your finances with access to Citi professionals
  • Connects you with the latest Citi products, services and resources
What is a Financial Advisor

What is a Financial Advisor
Your Citi® Personal Wealth Management Financial Advisor (FA) helps you build a plan connecting your future with your present - from retirement and education planning to daily finances.
  • Helps you identify and reach your goals
  • Helps simplify your finances through access to Citi professionals
  • Provides guidance in terms you can understand

Share Your Screen With A Phone Representative

During your call, you may be asked to share your screen for a faster, more efficient experience. If you agree, the phone representative you're speaking with will give you a Service Code to enter below.

If you need assistance from a Citi representative, contact us via chat or phone