Form
- CT23 Corporations Tax and Annual Return
Annual corporate tax return for corporations with permanent establishments in Ontario.
Publications
- Ontario New Technology Tax Incentive
Tax Legislation Bulletin 98-12 - In the 1997 Budget, Ontario announced the Ontario New Technology Tax Incentive (ONTTI) to encourage the development and transfer of new technology. - Taxpayer Requested Adjustments to Tax Credits and Incentives
Information Notice 6009 - This notice explains the ministry's policy on accepting and processing taxpayer requested adjustments to several tax credits and incentives. - Guide to the CT23 Corporations Tax and Annual Return
An information guide providing information and assistance for the completion of the CT23 return.
