Form
- CT23 Corporations Tax and Annual Return
Annual corporate tax return for corporations with permanent establishments in Ontario.
Publications
- Ontario School Bus Safety Tax Incentive
Tax Bulletin Number 003 - The rules discussed in this bulletin are contained in section 13.4 of the Corporations Tax Act. This bulletin is provided as a guide for taxpayers. It is not intended as a substitute for the legislation. For precise details, the reader should consult the Corporations Tax Act. - 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. - Guide to the CT23 Corporations Tax and Annual Return
An information guide providing information and assistance for the completion of the CT23 return.
