How to Change Your Phone Number with the CRA

Updating your phone number with the Canada Revenue Agency (CRA) is an important step in keeping your tax account secure and ensuring you receive timely communication. CRA may use your phone number to contact you about your tax return, benefits, credits, or account security.

Why Updating Your Phone Number Is Important

An up-to-date phone number allows CRA to:

• Contact you about your tax return or account issues
• Provide security verification when you access CRA services
• Send alerts related to benefits, credits, or account changes

Ways to Change Your Phone Number

Online Using CRA My Account

The fastest way to update your phone number is through CRA My Account. Once logged in, you can update your contact information securely, and changes usually take effect immediately.

By Phone

You may also update your phone number by calling CRA. You will be required to verify your identity before any changes can be made to your account.

By Mail

In certain situations, you may need to submit your request by mail. Include your full name, Social Insurance Number, new phone number, and your signature to help CRA process the update.

Visit CRA website

When Should You Update Your Phone Number?

You should update your phone number as soon as it changes, especially if you recently moved, changed service providers, or no longer have access to your previous number.

Protecting Your Information

Only update your phone number using official CRA services. Never provide personal or contact information to unknown callers, emails, or text messages claiming to be from the CRA.

Need Help?

If you are unable to update your phone number online, a CRA agent, tax professional, or free tax clinic may be able to assist you.

Additional Read: FREE income tax clinic

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