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Tax professionals

Information for tax professionals. For additional topics of interest, see Individuals; Businesses; International and non-resident; Charities; Non-profit organizations; Trust administrators; Registered plans administrators; and Aboriginal peoples.

What’s new

Internet filing of Information Returns - As of January 2006, Internet File Transfer (XML) will be available for a number of information returns. Users will require a Business Number (BN) and Web Access Code (WAC) to file these returns.

  • Originals and amended: NR4, RSP Contribution Receipt, T3, T4, T4A, T4A-NR, T4RIF, T4RSP, T5, and T5008.
  • Originals only: T4E, T5007, and T5018.
Topics for tax professionals
Income tax rulings and interpretations
Request a ruling or interpretation on income tax matters.
GST/HST rulings and interpretations
Request a ruling or interpretation on GST/HST matters.
CPP/EI Rulings
Request a ruling or interpretation on the determination of employment status, pensionable and insurable employment and earnings.
Services and resources
Quick access to services and resources for Individuals, Businesses, Trusts, etc.
(I.C., T1, T2, T3, T4, GST/HST, RRSP, CCTB, etc.)
Resolving disputes
Information on what to do if you disagree with an assessment.
Tax professionals advisory committee
Information about the committee's mandate, scope, and membership.
Electronic services for tax preparers
Links to our electronic services for your individual and business clients.
Technical information
Find information on news, notices, rulings, circulars, bulletins, memoranda, policy papers, regulation, and legislation relating to income tax, GST/HST, excise duty and excise tax and special levies.
Events and seminars
Events and seminars provided by the CRA for clients across Canada.
Important dates for: individuals and businesses

Provincial and Territorial government partners (in alphabetical order)

Federal Government Sites (in alphabetical order)


Foreign governments (in alphabetical order)


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Date modified:
2005-05-24
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