Canada Revenue Agency Government of Canada
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Tax professionals

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

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.
Represent a client
This secure service will let you and/or your business deal with us as a representative.
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:
2006-02-17
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