How to file the 2001 CT23 and CT8 update — and autofill 013-1970 with my-id.ca
Update CT23 and CT8 returns without retyping corporate details
Corporations updating both CT23 and CT8 returns for 2001/2002 repeat corporation name, business number, and registered office address on every combined update 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 — ontario.ca
- Form (Central Forms Repository): 2001 CT23 Corporations Tax and Annual Return and CT8 Corporations Tax Return - 2001/2002 Update Form — 013-1970
What this form is about
Form 013-1970 is the 2001 CT23 and CT8 Corporations Tax Return 2001/2002 Update Form — confirm when this combined update applies on ontario.ca.
Before you start: what to gather
- Corporation legal name and Ontario corporation number.
- Registered office address and business number.
- Original CT23 and CT8 return references.
- Updated tax particulars — prepare with your accountant.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your corporation name, address, and director 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
- When is the combined update required?
- Confirm with the Ministry of Finance whether 013-1970 applies to your filing.
- How does my-id.ca help?
- It autofills corporation name, address, and director details.
- How does CT8 relate to CT23?
- CT8 is a separate corporations tax return — confirm which forms your corporation must file.
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.