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Canada Revenue Agency
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e-service Helpdesk for businesses

How you can contact us

e-service Helpdesk for businesses
To get help using My Business Account, GST/HST NETFILE, GST/HST TELEFILE, Information Returns Electronic Filing, Represent a client, or Payroll Deductions Online Calculator
If you're calling from outside Canada and the United States, call us collect at 709-772-8371
TTY e-service Helpdesk for businesses 1-888-768-0951

e-service Helpdesk hours of service

Time zone Monday to Friday
Pacific Time 7:00 a.m. to 4:30 p.m.
Mountain Time 8:00 a.m. to 5:30 p.m.
Central Time 9:00 a.m. to 6:30 p.m.
Eastern Time 10:00 a.m. to 7:30 p.m.
Atlantic Time 11:00 a.m. to 8:30 p.m.
Newfoundland and Labrador Time 11:30 a.m. to 9:00 p.m.
Outside Canada and the US (Eastern Time) 10:00 a.m. to 7:30 p.m.


  1. The e-service Helpdesk is not available on weekends and statutory or civic holidays.
  2. If your question is about a screen, please have the screen reference number handy. You will find the number at the bottom right corner of your screen. If your question is about an error message, please have the message and error number handy.