- Tax packages for all years
- 2007 CT23 Corporations Tax and Annual Return
- Application for Refund of Ontario Retail Sales Tax for Motor Vehicles Purchased Privately
- Application for Refund of Retail Sales Tax on Insurance or Benefit Plan Premiums
- Apply for a Social Insurance Number
- Change the address on your health card, driver's license and/or outdoors card
- Change your business/mailing address, telephone and fax numbers, account contact information
- Direct Deposit Request / Direct Deposit Authorization
- Ontario First Nations Harmonized Sales Tax (HST) rebate
- Ontario Land Transfer Tax Refund Affidavit for First-time Homebuyers
- Update corporate information such as directors, officers or registered head office address
Forms
The forms on this site are the most current version and have been provided by the Government of Ontario, the Government of Canada and other organizations. To avoid using outdated versions, we recommend that you do not download files to your hard drive. New and revised forms are added to this site frequently.
Some forms may be viewed and filled-in on screen. Due to internet security and privacy issues, forms must be returned to the ministry by fax (where applicable), mail, or in person.
You can search for forms by topic, for example, child care; by client, such as farmers; by title, such as Change of Address; and by popularity (see most popular forms below).
If you cannot find the form you are looking for, please contact us.
Most popular forms
List of forms by topic
More
- Authorizing or Cancelling a Representative
- Beer and Wine Tax
- Capital Tax
- Change of Address
- Child Care Supplement for Working Families
- Corporations Tax
- Corporate Income Tax
- Debt Retirement Charge
- Direct Deposit Request / Direct Deposit Authorization
- Employer Health Tax
- Fuel Tax
- Gasoline Tax
- Harmonized Sales Tax
- Income Tax
