CARD ACTIVATION GUIDE

Card security.

Activation on demand.

Card security. Activation on demand.
  • Activation and de-activation of all credit cards, debit cards and ATM cards
  • Instant and 24/7 channels for activating and de-activating your card
New Card

All new, renewal and replacement Citibank Credit/Debit/ATM Cards sent via mail will be in a de-activated(blocked)
status. As part of this safeguard, any transactions attempted on a de-activated card will be declined.

Please refer below to find out how to activate/de-activate your Credit/Debit/ATM Card(s) via our various convenient channels available anytime, anywhere.

Channel Activate De-Activate

SMS

  • Please send the SMS from the mobile phone number registered in our records
  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us
  • De-activation via this channel is only applicable for Credit Cards.

SMS ACT<space><Last four digits of your card number> to 72484.

If you are overseas, please SMS to +65 9657 2484 instead.

SMS DEACT<space><Last four digits of your card number> to 72484.

If you are overseas, please SMS to +65 9657 2484 instead.

Self Service Phone Banking

  • You will be requested to enter your Credit/Debit/ATM Card details, so please have it with you.
  • Activation of your Credit/Debit/ATM Cards is immediate and you will receive a confirmation SMS from us.
  • Deactivation for Credit/Debit/ATM Card is not applicable via Self Service Phone Banking.
  • Call Card Activation Hotline 6334 2484.
  • Enter your NRIC or card number.
  • Follow the voice instructions and enter the details requested
  • Upon completion of the above steps, you will receive an SMS with 6-digit One-Time PIN (OTP). Enter the OTP

Citi Mobile

  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us.
  • De-activation via this channel is only applicable for Credit Cards.
  • Open "Citibank SG" mobile application
  • Login with your Username & Password
  • Go to “Services” >> "Online Card Activation"
  • Please enter the One-Time PIN (OTP) displayed on your Online Security Device (OSD) or request for a One-Time PIN (OTP) via SMS. Click 'Continue' to proceed.

  • Select “Local usage for Credit/ATM/Debit Card Activation”

  • Select the respective card(s) to activate/de-activate, then tap on “Activate/Deactivate”
  • Tap on confirm to complete the process

Citibank Online

  • If you access www.citibank.com.sg using your mobile, you will be automatically redirected to a mobile site.
  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us.
  • De-activation via this channel is only applicable for Credit Cards

To activate/de-activate your cards online using your Internet Banking PIN:

  • Visit www.citibank.com.sg via computer/laptop/tablet
  • Click on "LOGIN TO", followed by "Citibank Online"
  • Enter:
    • User ID
    • Password
  • Under "Services" > "My Profile", click on "Card Activation" link and follow the steps on-screen.

Citibank Online - Express Login

  • The activation channel is not available if you access www.citibank.com.sg using your mobile phone
  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us
  • De-activation via this channel is only applicable for Credit Cards.

To activate/de-activate your credit card(s) online without using your Internet Banking PIN:

  • Visit www.citibank.com.sg via computer/ laptop/ tablet.
  • Click on "LOGIN TO", followed by "Express Login"
  • Enter:
    • Credit Card Number
    • Card Expiry Date
    • 6-digit One Time PIN (OTP)
  • Under "Services" > "My Profile", click on "Card Activation" link and follow the steps on-screen.
Overseas Usage

From 1 October 2013 onwards, all new, renewal and replacement Citibank ATM/Debit/Credit Cards will have their overseas usage feature de-activated as a default unless:

  • You had specifically selected to activate the overseas usage feature on your account opening application form.
  • The card being renewed/ replaced was previously activated for overseas usage.

Remember to activate the overseas usage feature on your Credit/ATM/Debit Card(s) before traveling to enjoy your global privileges.

Please note that overseas usage de-activation for Credit Cards will only disable overseas ATM cash withdrawals and point-of-sale (POS) magnetic stripe transactions. POS EMV Chip transactions will not be disabled.

Please refer below to find out how to activate/de-activate your Credit/Debit/ATM Card(s) for overseas usage via our various convenient channels available anytime, anywhere.

Channel Activate De-Activate

SMS

  • Please send the SMS from the mobile phone number registered in our records
  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us

For perpetual

SMS ACT<space>OS<space><Last four digits of your card number> to 72484.

If you are overseas, please SMS to +65 9657 2484 instead.

For time bound overseas use

SMS ACT<SPACE>OS<SPACE><Last four digits of your card number><SPACE><number of days>

If you are overseas, please SMS to +65 9657 2484 instead.

Time bound overseas activation will start from the day that the SMS is sent.

SMS DEACT<space>OS<space><Last four digits of your card number> to 72484.

If you are overseas, please SMS to +65 9657 2484 instead.

Self Service Phone Banking

  • You will be requested to enter your Credit/Debit/ATM Card details, so please have it with you.
  • Activation of your Credit/Debit/ATM Cards is immediate and you will receive a confirmation SMS from us
  • Call Card Activation Hotline 6334 2484.
  • Enter your NRIC or card number.
  • Follow the voice instructions and enter the details requested .
  • Upon completion of the above steps, you will receive an SMS with 6-digit One-Time PIN (OTP). Enter the OTP.

Citi Mobile

  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us.
  • Open "Citibank SG" mobile application
  • Login with your Username & Password
  • Go to “Services” >> "Online Card Activation"
  • Please enter the One-Time PIN (OTP) displayed on your Online Security Device (OSD) or request for a One-Time PIN (OTP) via SMS. Click 'Continue' to proceed.

  • Select “Overseas Card Activation”

  • Select the respective card to activate/de-activate
  • To activate, either select “Perpetual” or specify a date range for which to activate the card for overseas usage, then tap on “Activate”
  • To deactivate, tap on “Deactivate”
  • Tap on confirm to complete the process

Citibank Online

  • If you access www.citibank.com.sg using your mobile, you will be automatically redirected to a mobile site.
  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us.

To activate/de-activate your cards online using your Internet Banking PIN:

  • Visit www.citibank.com.sg via computer/laptop/tablet.
  • Click on "LOGIN TO", followed by "Citibank Online"
  • Enter:
    • User ID
    • Password
  • Under "Services" > "My Profile", click on "Overseas Card Activation" link and follow the steps on-screen.

Citibank Express login

  • The activation channel is not available if you access www.citibank.com.sg using your mobile phone
  • Activation/De-activation of your card is immediate and you will receive a confirmation SMS from us
  • De-activation via this channel is only applicable for Credit Cards.

To activate/de-activate your credit card(s) online without using your Internet Banking PIN:

  • Visit www.citibank.com.sg via computer/ laptop/ tablet.
  • Click on "LOGIN TO", followed by "Express Login"
  • Enter:
    • Credit Card Number
    • Card Expiry Date
    • 6-digit One Time PIN (OTP)
  • Under "Services" > "My Profile", click on "Overseas Card Activation" link and follow the steps on-screen.
FAQs

Click here to view FAQs on Card Activation and De-activation.

Click here to view FAQs on Overseas Usage Activation.