Canada Revenue Agency

Canada Revenue Agency (CRA)
T.I.P.S. (Tax Information Phone Service) 1-800-267-6999
Individual income tax enquiries 1-800-959-8281
Income tax refund enquiries 1-800-959-1956
Information and services for businesses
and self-employed individuals 1-800-959-5525
GST/HST credit 1-800-959-1953
For a full list of contact information see:

Canada Revenue Agency Home Page

CRA Online Course – Learning About Taxes

Canada Income Tax

Business Taxation

Goods and Services Tax / Harmonize Sales Tax (GST/HST)

Other (Non-resident, Charities, Non-Profits, Trusts, etc.)