Activate Citi ThankYou Card
To activate your Citi ThankYou Card, you have several convenient options. Go to the Citi Card Activation website: Citi Online Activation. Enter your 16-digit card number, validate your Date of Birth, and follow the prompts to select your PIN.
Here’s a step-by-step guide to help you get started:
✅ 1. Activate via Citi Mobile® App
The Citi Mobile® App offers a quick and secure way to activate your card:
-
Download the App: Install the Citi Mobile® App from Google Play Store or Apple App Store.
-
Log In: Open the app and log in using your User ID and Password.
-
Activate Card: On the home screen, tap on ‘Activate Card’.
-
Enter Card Details: Input your 16-digit card number, expiry date, CVV, and your date of birth.
-
OTP Verification: You will receive a One-Time Password (OTP) on your registered mobile number. Enter this OTP to verify your identity.
-
Set PIN: Create a 4-digit PIN for your card.
-
Confirmation: Once activated, you will receive a confirmation message

Also Read : Aetna Precertification Lists PDF 2025
✅ 2. Activate via Citibank Online
If you prefer using a desktop or laptop:
-
Visit Citibank Online: Go to online.citi.com.
-
Log In: Enter your User ID and Password.
-
Navigate to Card Activation: Under the ‘Services’ menu, select ‘Activate Card’.
-
Enter Card Details: Provide your card number, expiry date, and date of birth.
-
OTP Verification: An OTP will be sent to your registered mobile number. Enter this OTP to proceed.
-
Set PIN: Create a 4-digit PIN for your card.
-
Confirmation: You will receive a confirmation message once your card is activated.
✅ 3. Activate via ATM
If you have a Citibank ATM card linked to your account:
-
Visit a Citibank ATM: Insert your Citibank ATM card.
-
Enter PIN: Input your ATM PIN.
-
Select ‘Create PIN using OTP’: Choose this option from the menu.
-
Receive OTP: An OTP will be sent to your registered mobile number.
-
Enter OTP: Input the received OTP.
-
Set Card PIN: Create a 4-digit PIN for your card.
-
Confirmation: You will receive a confirmation message once your card is activated.
✅ 4. Activate via Customer Care
For assistance, you can contact Citibank’s customer care:
-
Phone: Dial 1860 210 2484 from your registered mobile number.
-
Process: Follow the automated instructions to activate your card. You may need to provide your card details and personal information for verification
🔐 Important Tips
-
Secure Your PIN: Do not share your PIN with anyone.
-
Transaction Limits: Online, international, and contactless transactions are blocked by default for security. You can enable or set usage limits via the Citi Mobile® App or Citibank Online.
-
Regular Monitoring: Keep an eye on your account statements and report any suspicious activities immediately.