- CT23 2007 Corporations Tax and Annual Return [PDF - 290 KB]
Annual corporate tax return for corporations with permanent establishments in Ontario. - Ontario Innovation Tax Credit (OITC) Claim Form/Guide [PDF - 33 KB]
This form is to be used when claiming an Ontario innovation tax credit (OITC) for taxation years commencing after February 27, 1995 and ending before 2003. - Ontario Innovation Tax Credit (OITC) Claim Form/Guide for 2003 and subsequent taxation years [PDF - 100 KB]
Use this form if your corporation's taxation year ends after December 31, 2002 - Ontario Innovation Tax Credit (OITC) Claim Form/Guide for 2005 and subsequent taxation years [PDF - 100 KB]
Use this form if your corporation's taxation year ends after December 31, 2004.
Forms
Publications
- Guide to the 2007 CT23 Corporations Tax and Annual Return
- Highlights from the 2004 Ontario Budget - Corporations Tax Act Measures
On May 18, 2004, a number of measures relating to the Corporations Tax Act were proposed in the 2004 Ontario Budget. - Highlights from the 2008 Ontario Budget - Corporations Tax Act, Taxation Act 2007
On March 25, 2008, a number of proposed measures relating to the Corporations Tax Act and the Taxation Act, 2007 were announced in the 2008 Ontario Budget. The proposals must be passed by the Legislature and receive Royal Assent to become law. This notice provides general information and is not a substitute for the legislation. - Highlights from the 2009 Ontario Budget - Corporations Tax
On March 26, 2009, a number of proposed measures relating to the Corporations Tax and Related Programs were announced in the 2009 Ontario Budget. - Taxpayer Requested Adjustments to Tax Credits and Incentives - Corporations Tax
Explains the Ministry of Finance's policy on accepting and processing taxpayer requested adjustments to several tax credits and incentives.
