How to register an extra-provincial LLP firm name — and autofill 5304 with my-id.ca
Register your extra-provincial LLP firm name without retyping partner details
Extra-provincial limited liability partnerships registering a firm name in Ontario repeat partnership legal name, home jurisdiction, partner names and addresses, and contact information on every Business Names Act registration. 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: Ontario Business Registry — ontario.ca
- Form (Central Forms Repository): Register a Firm Name for an Extra-Provincial Limited Liability Partnership - Business Names Act — 5304
What this form is about
Form 5304 registers an extra-provincial LLP's firm name under the Business Names Act — confirm filing on ontario.ca.
Before you start: what to gather
- Partnership legal name and home jurisdiction.
- Proposed firm name and principal place of business in Ontario.
- Partner names and addresses and authorized contact details.
- Name search or consent — confirm on ontario.ca.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your partnership name, partner addresses, and contact 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
- What is an extra-provincial limited liability partnership?
- A partnership formed outside Ontario that registers to operate in Ontario — confirm on ontario.ca.
- How does my-id.ca help?
- It autofills partnership name, partner addresses, and contact details.
- How does 5304 relate to form 5305?
- Form 5304 registers a new firm name; 5305 amends an existing registration.
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.