How to claim the Ontario Innovation Tax Credit — and use guide 013-1805c with my-id.ca
Complete the OITC claim without retyping corporation details
Corporations claiming the Ontario Innovation Tax Credit on their Ontario corporate tax return repeat legal name, business number, mailing address, and authorized signatory information on every OITC claim package. 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): Ontario Innovation Tax Credit (OITC) Claim — 013-1805c
What this form is about
Form 013-1805c is the guide for completing the Ontario Innovation Tax Credit (OITC) claim — confirm eligibility and calculation rules on ontario.ca.
Before you start: what to gather
- Corporation legal name and mailing address.
- Ontario corporation number and business number.
- Eligible innovation expenditure records for the claim year.
- Authorized signatory name, title, phone, and email.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your corporation name, address, and registration identifiers 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 claim the OITC?
- Qualifying Ontario corporations with eligible innovation expenditures — confirm on ontario.ca.
- How does my-id.ca help?
- It autofills corporation name, address, and registration identifiers.
- How does 013-1805c relate to form 013-1805d?
- Both are OITC claim guides; confirm which version applies to your tax year 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.