How to register a construction lien claim (Form 8) — and autofill cla-8 with my-id.ca
Register a lien claim without retyping contractor and owner details
Contractors and suppliers registering a claim for lien under section 34 of the Construction Act repeat their business identity, owner name and address, and premises particulars on every Form 8 claim. 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: Construction Act — ontario.ca
- Form (Central Forms Repository): Form 8 - Claim for Lien Under Section 34 of the Act Construction Lien Act — cla-8
What this form is about
Form cla-8 is Form 8 — Claim for Lien Under Section 34 of the Construction Act, the prescribed form for registering a lien claim — confirm deadlines on ontario.ca.
Before you start: what to gather
- Claimant business name and address for service.
- Owner name and address.
- Premises or project address and improvement description.
- Contract amount and last supply date — confirm with counsel.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your claimant and owner business identity 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 must a lien claim be registered?
- Within prescribed deadlines after last supply — confirm with counsel.
- How does my-id.ca help?
- It autofills claimant and owner business names and addresses.
- How does Form 4 (cla-4) relate?
- Form cla-4 is notice to a lien claimant; Form 8 is the lien claim itself.
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.