Introducing Ontario's new online tax service, ONT-TAXS online
Secure, convenient and free online access to your business tax account(s) 24 hours a day, seven days a week.
The tax professional community in Ontario provides taxpayers with a full range of business and personal tax services. The links below have been collected to highlight information and services that will help you do your job and assist others.
Account maintenance
- Authorizing or Canceling a Representative
Authorization is required for you and/or your business to deal with the ministry on behalf of your client. - Change of Address
- File, pay and view Ontario business taxes online
Forms and Publications
- Corporations Tax Returns, Guides and Schedules
- Employer Health Tax
- Guides for Real Estate Practitioners
- How to complete your Retail Sales Tax Return
- Ontario Budget
- Retail Sales Tax Clearance Certificate Checklist
- Retail Sales Tax Application and/or Refund Forms
- Tax Interpretations
Programs of Interest
- Credits, Benefits & Incentives
Ontario's tax system provides a variety of credits, benefits and incentives to encourage economic growth and job creation, and to assist Ontario residents with low to moderate incomes. - Employer Health Tax
- Harmonized Sales Tax
- Land Transfer Tax
- Land Transfer Tax Refund for First-Time Home Buyers
- Personal Income Tax
- Retail Sales Tax
- Single Administration of Corporate Tax
- Taxes Administration Act Project
Events
- Scientific Research & Experimental Development Seminars
- PST - GST/HST Seminars
- Tax Information Forums
Points of Reference
- Accounting acronyms
Access a quick guide to the acronyms and abbreviations commonly used by Ontario's chartered accountant profession - Canadian Legal Information Institute (CanLII)
Legislative and judicial texts, as well as legal commentaries, from federal, provincial and territorial jurisdictions. - e-Laws
Full text of the Acts and Regulations of the Province of Ontario. - Federal Court of Canada Decisions
- Justice Laws
Full text of the Acts and Regulations of the Canadian government. - LexUM
University of Montreal Law Faculty Public Law Research Center. - Ontario Gazette
