Technical Support – Professional Representatives of Businesses
Before calling us, make sure your computer meets the system requirements for using our website and online services.
Frequently asked questions:
- How to Complete a Business's Income Tax Return or Information Return (in French only)
- How to File a Business's Income Tax Return or Information Return (in French only)
Didn't find what you were looking for? We can help!
Technical support hours
See the list of holidays to find out when our client services are closed.
If you are asking a question by secure email, make sure to give a phone number where we can reach you because we will answer by phone and not by email. When we call, you will need certain confidential documents (such as the business's last notice of assessment or consumption tax return) to confirm your identity. Also, to view or make changes in the business's file, you need to be an authorized representative or have a valid power of attorney.