Ontario residents and businesses are required to use specific tax forms to report income, claim tax credits, and file returns with the Canada Revenue Agency (CRA). Each form serves a distinct purpose, from personal income taxes to business filings, and from requesting tax credits to reporting overpayments. Understanding and utilizing the correct tax forms ensures that taxpayers in Ontario can accurately meet their tax obligations while taking advantage of available credits and deductions. This document provides a comprehensive list of common Ontario tax forms, including their form numbers and a brief description of their purpose.
| Form Number | Form Name |
| ON428 | Ontario Tax |
| ON-BEN | Application for the Ontario Trillium Benefit and the Ontario Senior Homeowners’ Property Tax Grant |
| ON479 | Ontario Credits |
| T2203 | Provincial and Territorial Taxes for Multiple Jurisdictions |
| ON479 | Ontario Tax Credits (General) |
| T1213ONT | Request to Reduce Tax Deductions for Ontario Credits |
| T2222 | Northern Residents Deductions |
| T777 | Statement of Employment Expenses |
| T1032 | Joint Election to Split Pension Income |
| T1-OVP | Individual Overpayment of Tax |
