Effective June 16, 2025, the Canada Revenue Agency (CRA) will begin transitioning all business correspondence to online mail. This change will apply to physicians with Medicine Professional Corporations (MPCs), holding corporations, and unincorporated medical practices that are registered for GST/HST, payroll, or other CRA business program accounts. If a medical practice operates under a business number in any form, this update will affect how CRA correspondence is delivered.

As part of this transition, the CRA will no longer issue paper mail for most business-related notices. Instead, business owners will be required to log into their My Business Account to view notices of assessment, installment reminders, GST/HST filings, and other important correspondence. It is the responsibility of the business account holder to monitor this online account regularly and ensure that contact information is current.

To avoid missing time-sensitive messages, it is essential to set up email notifications within the CRA account. Once enabled, an alert will be sent any time new mail is available in My Business Account. These notifications will not include sensitive details, but they serve as a prompt to log in and review any new correspondence. Email alerts will be sent with the subject line:  “New mail from the Canada Revenue Agency / Nouveau courrier de l’Agence du revenu du Canada.”

How to Prepare

  1. Sign in to CRA My Business Account.
  2. Select the Business account to access the My Business Account dashboard.
  3. From the navigation menu on the left, click Profile.
  4. In the “Notification preferences” section, select Manage notification preferences.
  5. Review any email addresses currently registered to receive notifications and verify their accuracy.
  6. If necessary, update or add additional email addresses (e.g., for a clinic administrator or office manager).

Once preferences are set to “Electronic mail,” the CRA will deliver notifications electronically and discontinue sending paper mail for applicable business accounts.

It is also important to note that CRA representatives (such as accountants or advisors) do not receive notifications when new mail is delivered to My Business Account. Only the business owner or authorized users with email notifications enabled will be alerted.

For more information on CRA’s transition to online mail, visit the official Online Mail for Business page: Online mail for business

Please get in contact with us at [email protected] Elliott Stone, CPA, CA, is the founder of MD Tax Physician Services in Toronto.

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