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 Candidate profile	All	11:00 pm October 17, 2025	6:00 am October 20, 2025

Page details

2025-10-14