Key insights:

• You need to activate your new Citi credit card before using it
• You can typically activate your Citi credit card online, by phone or through the Citi Mobile App
• Once activated, you can generally start using your card right away

When your new Citi credit card arrives, you’ll need to activate it before you can use it for purchases. Your card may come with a sticker or instructions explaining how to complete the activation process. Depending on your card and account, you may be able to activate it online, by phone or through the Citi Mobile App.

Activating a credit card is generally a quick and simple process. Here’s what to know about activating your Citi credit card, including how to activate it, when you can use it and what to do if you have trouble.

3 ways to activate your Citi credit card

When you receive your new Citi credit card, check the accompanying information for activation instructions. You may have several options for activating your card, including online, by phone or through the Citi Mobile App.

The exact steps may vary depending on your card and the activation method you choose. You may be asked to provide information from your card or account to verify your identity.

Online

One of the easiest ways to activate your Citi credit card is online. You can visit Citi.com/activate and follow the instructions provided on the page. You may need to enter information from your new card and complete the required verification steps.

By phone

You may also activate your Citi credit card by phone. Use the activation or customer service number provided with your new card or on the back of the card.

Follow the automated prompts and provide the requested information to complete the activation.

Through the Citi Mobile App

If you use the Citi Mobile App, you may be able to activate your new credit card directly through the app. Sign in to the app and follow the activation prompts to complete the process.

When can you use your credit card after it’s activated?

In general, you can start using your Citi credit card after it has been successfully activated. There typically isn't a separate waiting period between activation and using the card.

If your card doesn't work after activation, check your account or contact Citi for assistance.

Why do you need to activate your credit card?

Credit card activation is a security measure designed to help confirm that the card has been received by the intended cardholder. Since new cards are often delivered by mail, activation helps prevent someone else from using the card if it is intercepted during delivery.

What if you don’t activate your credit card?

If you don't activate your Citi credit card, you generally won't be able to use that physical card for purchases.

However, not activating the card doesn't necessarily mean the underlying credit account is automatically closed. Depending on your account terms, fees or other account obligations may still apply.

If you don't plan to use the card, consider contacting Citi for information about your account and available options.

How do you know your credit card is activated?

If you're unsure whether your Citi credit card has already been activated, you can check your Citi account or contact customer support.

You can also try following the activation instructions again. If your card has already been activated, you may receive a message indicating that no additional activation is required.

What to do if you have trouble activating your credit card?

Activating a credit card is usually a straightforward process, but you may occasionally encounter an issue. If you're having trouble activating your Citi credit card, try these steps:

• Double-check the information you entered: Make sure the card and account information you provided is correct.
• Try another activation method: If online activation through Citi.com/activate isn't working, you may be able to activate your card by phone or through the Citi Mobile App.
• Check your internet connection: If you're activating online, make sure your connection is stable.
• Follow the instructions that came with your card: Your card may include specific activation instructions.
• Contact Citi customer support: If you're still unable to activate your card, contact Citi using the official contact information provided with your card.

Once your Citi credit card has been successfully activated, you can generally begin using it for eligible purchases.

Disclosure: This article is for informational and educational purposes only. It is not intended to provide financial, legal or investment advice and does not guarantee the availability of any Citi product or service. For information about your specific account or card, contact Citi directly.