Single Administration of Corporate Tax
The governments of Canada and Ontario signed a Memorandum of Agreement on October 6, 2006, that will lead to the Canada Revenue Agency (CRA) administering certain Ontario corporate taxes.
Why are we making this change?
Ontario businesses will benefit from one form, one set of rules, one audit and one appeals process.
What does this mean for businesses?
Corporate taxpayers will start:
- making blended instalment payments to the CRA in February 2008;
- seeing compliance cost savings starting in April 2008, from integrated audits, objections, appeals and rulings for pre-2009 taxation years;
- filing a single T2 Corporate Tax return (including the Ontario annual information return) with the CRA for taxation years ending after December 31, 2008.
The CRA will assume some responsibilities for taxation years ending before December 31, 2008 as a means of providing early compliance gains to business.
For now the Ontario Ministry of Revenue continues to be your first point of contact for all matters related to your Ontario corporate tax account.
Beginning with the 2009 taxation year, the CRA will administer the following corporate taxes on behalf of Ontario:
- Corporate income tax
- Corporate minimum tax
- Capital tax
- Special additional tax on life insurers
Ontario will continue to administer:
- Mining tax
- Insurance premiums tax
- Electricity Act payments-in-lieu of federal and Ontario corporate taxes
Learn more
- Information Pamphlet: Single Administration of Ontario Corporate Tax
January 2008 - Frequently Asked Questions
- Joint Canada Revenue Agency/Ontario presentation on the Single Administration of Corporate Tax
- News Release: Human Resources Agreement reached for harmonization of Ontario corporations tax with federal regime
July 31, 2007
About the Legislation - Bill 174
- News Release: Ontario businesses will benefit from transformation to a single tax collector
May 31, 2007 - Backgrounder: Strengthening Business through a Simpler Tax Act, 2006
December 13, 2006 - News Release: McGuinty government introduces bill that will transform corporate income tax system
December 13, 2006 - Bill 174: An Act to enact the Taxation Act, 2007 and make complementary and other amendments to other Acts
Memorandum of Agreement
- News Release: Ontario businesses will benefit from new Tax Collection Agreement
October 6, 2006 - Memorandum of Agreement Concerning a Single Administration of Ontario Corporate Tax
October 6, 2006
Canada-Ontario Joint Service Delivery Strategy
- Backgrounder: Canada-Ontario Memorandum of Agreement on Collaboration in the Delivery of Public Service
May 13, 2004 - News Release: Canada and Ontario launch joint service delivery strategy
May 13, 2004


