How to Activate your Citi Bank Credit Card Online

by admin August 03, 2023
citi credit card activation tips

How to Activate Citi Bank Credit Card

To activate your Citi Bank Credit Card, you are only required to utilize either the Online Activation Page, or the Citi Mobile Application, or Call the Number printed on the back of your card. Each of the activation processes needs just 4 (four) part of information such as the Citi Bank Credit Card Account Number, the 3-Digit Security Code (printed on the backside of the card), the last 4-Digits of the Primary Cardholder’s Social Security Number (SSN), and the Cardholder’s Date of Birth (DOB).

It is pretty simple & quick to activate a Citi Bank Credit Card. The process is required as a fraud prevention measure. Its main purpose is to provide the primary user access to the card after protecting the account while mailing. The Credit Card is invalid until it’s activated.

Citi Bank Credit Card Activation Online

  • Visit the official website of Citi Bank.
  • You can directly tap on the link provided at
  • On the landing page of the website, you can find the “Activate a Card” link, just below the SIGN-ON
  • On a newly deferred webpage put on your “Card Number”, or directly go to the page.


citi card activate


  • Now, tap on the “Continue” button below and follow the on-screen guidelines.

Activation through Mobile Application

  • Firstly, download the Citi Mobile Application.
  • Open the application, press on the “Register” or “Activate” card option.
  • Now Tap on the “Credit Card” option & Scan your card.
  • Then just input your CVV, Date of Birth (DOB), & Social Security Number (the last 4 digits of your SSN), etc.
  • Lastly, tap on the “Continue” button and follow.


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Activation through Phone

If you are desperate to activate your Citi Bank Credit Card, & running short of time don’t worry. Now you can also activate your card through your phone. In any circumstances, if you cannot activate your Citi Bank Credit Card utilizing the online method then you can also consider this method. You can dial and activate your Citi Bank Credit Card over the phone by calling the number at 1 -800 -950 -5114, for TTY/TDD (Call): 1 -800 -325 -2865. Additionally, you have to share your Few Personal Information, Credit Card Details along with your Social Security Number (SSN).

Please Note: You can choose any of the above-mentioned Activation Processes, but at the end, you will receive a confirmation notification that your Citi Bank Credit Card is active & ready to use. Of course, you can easily test that by visiting any Citi Bank ATM or by making a small transaction at the retailer as per your choice. If there’s any issue regarding your Card’s Activation, then you can simply contact the Citi Bank Customer Service Number printed on the backside of your card & they’ll help you to resolve the issue.

How to Sign On or Log On for a Citi Bank Credit Card

To Sign On or Log On for a Citi Bank Credit Card, follow the simple steps below:

  • Move on to the authoritative website of Citi Bank.
  • On the homepage of the website, you will easily find the SIGN ON
  • Here you have to put down your “User ID” and “Password”.
  • Now by tapping on the “Sign On” tab below, access your Citi Bank Account.

How to Reset Password for Citi Bank Credit Card

To Reset or Forgot Password for Citi Bank Credit Card, go with the below steps:

On the home page of the official Citi Bank website, you will find the “Forgot Password” option easily. And on the next page, you have to select the “Credit Card Customers” option and put your “Credit Card Number” on the respective field & click on the “Continue” tab below and follow.

Various Credit Cards offered by Citi Bank

  • Citi Custom Cash Card
  • Citi Diamond Preferred Credit Card
  • Citi Bank Costco Anywhere Visa Credit Card
  • Citi Bank Costco Anywhere Visa Business Credit Card
  • Citi Bank Double Cash Credit Card
  • Citi Bank Rewards Credit Cards, etc.

Contact Details

For Citi Bank Credit Cards, & Other Banking Products (Mail to):

Citi Customer Service,
P.O. Box 790398,
St. Louis, MO 63179

Phone Numbers:

Citi Online Banking Support (Call): 1 -866 -405 -4036 & 1 -800 -374 -9700, for TTY/TDD (Call): 1 -800 -788 -6775

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