How to authorize a tax representative — and autofill 013-0009 with my-id.ca
Appoint or cancel an Ontario tax representative without retyping both parties' details
Taxpayers and authorized representatives repeat legal names, addresses, business numbers, and contact information on every Ministry of Finance authorization or cancellation form. This guide is an example of storing them once in my-id.ca.
Official form and source
Start from the official source and always use the current version — form numbers and links can change:
- Service page: Corporations tax forms and publications — ontario.ca
- Form (Central Forms Repository): Authorizing or Cancelling a Representative — 013-0009
What this form is about
Form 013-0009 is Authorizing or Cancelling a Representative for Ontario Ministry of Finance tax matters — confirm permitted representation on ontario.ca.
Before you start: what to gather
- Taxpayer legal name and mailing address.
- Business number or Ontario tax account identifiers if applicable.
- Representative name, firm, address, and contact details.
- Authorization scope and signature date — confirm on ontario.ca.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your taxpayer and representative name and address details in your my-id.ca profile.
- Keep documents ready. Upload supporting documents to my-id.ca Files so you are not searching at form time.
- Autofill the form. Use the my-id.ca Chrome extension on a web form, or fill a PDF from your saved profile inside my-id.ca.
- Review and submit yourself through the official channel.
Why do it in my-id.ca
Related Ontario forms repeat the same personal details. Captured once in my-id.ca — stored in Canada, with AI on its own servers — every form starts mostly complete.
Frequently asked questions
- Who may be a representative?
- Accountants, lawyers, or other authorized agents — confirm permitted roles on ontario.ca.
- How does my-id.ca help?
- It autofills taxpayer and representative name and address fields.
- How does 013-0009 differ from form 9966?
- Both authorize representatives; confirm which version your tax program requires on ontario.ca.
Fill it once. Reuse it everywhere.
Save your information in my-id.ca once, then autofill this form and the next one — web forms with the Chrome extension, PDFs right in the app. Your data is stored in Canada and AI runs on my-id.ca's own servers, never sent to third-party AI providers.