System maintenance details

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System maintenance details

Due to system maintenance, the following services will be unavailable.

Maintenance times
Service Application Interruption begins (ET) Interruption ends (ET)
  • CRA account (My Account, My Business Account, Represent a Client)
  • Tax information web service
  • CRA Sign in
  • Business Registration Online
  • All
11:00 pm May 9, 2025 6:00 am May 12, 2025


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Date modified:
2025-05-06