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Useful Ontario Tax Links

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General Tax Links


Retail Tax Links


Phone Numbers

  • Companies Branch: (416) 314-8880 / 1-800-361-3223 (in Ontario)
  • Employer's Health Tax: (416) 920-9048 / 1-800-263-7965 (in Ontario)
  • Ontario Business Connects Helpline: TF:1-800-565-1921 / 416-314-9151
  • Ontario Ministry of Labour: (416) 326-7400
  • Ministry of Finance Tax Office: 1-866-668-8297
  • Workplace Safety and Insurance Board: (416) 344 -1000 / TF:1-800-387-0750 (in Ontario)


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