Form
- CT23 Corporations Tax and Annual Return
Annual corporate tax return for corporations with permanent establishments in Ontario.
Publications
- Guide to the CT23 Corporations Tax and Annual Return
An information guide providing information and assistance for the completion of the CT23 return. - Highlights from the 2007 Ontario Budget - Corporations Tax
Information Notice 6020 - Provides information on a number of measures relating to the proposed Taxation Act, 2006 and the Corporations Tax Act that were announced in the 2007 Ontario Budget. - Ontario Budget 2005 – Corporations Tax Act Measures
Information Notice 6008 - On May 11, 2005, a number of measures relating to the Corporations Tax Act were proposed in the 2005 Ontario Budget. The legislation must be passed by the Legislature and receive Royal Assent to become law. - Taxpayer Requested Adjustments to Tax Credits and Incentives
Information Notice 6009 - This notice explains the Ministry of Revenue's policy on accepting and processing taxpayer requested adjustments to several tax credits and incentives.
