Extra-Provincial Registration in Ontario: When an Out-of-Province Corporation Must Register

A corporation incorporated federally, or in British Columbia, Alberta, or any other province, is a fully valid corporation across Canada. What it isn’t, automatically, is registered to carry on business in Ontario. That’s a separate step — extra-provincial registration — and it’s one that catches out-of-province and even federally incorporated businesses off guard once they start actually operating here.

This article explains when extra-provincial registration is required, what it costs depending on where your corporation is from, and what happens if you skip it.

Incorporation Somewhere Else Doesn’t Register You Everywhere

Both the CBCA (federal) and each province’s corporate statute create corporations that can legally operate anywhere in Canada. But "can operate" and "is registered to operate" are different things. Ontario, like other provinces, requires a corporation formed elsewhere to register extra-provincially once it’s actually carrying on business within Ontario.

This applies whether your corporation was incorporated federally under the CBCA, in another Canadian province, or outside Canada entirely.

What Generally Counts as "Carrying on Business" in Ontario

There’s no single bright-line test for this, and it depends on your specific facts — but the kinds of activity that generally point toward "carrying on business" in Ontario include having a physical location, employees, or a registered presence here, or regularly and substantially conducting business activity in the province rather than occasional, incidental contact. If your situation is genuinely borderline, this is worth reviewing with a lawyer rather than guessing.

Businesses sometimes assume that shipping products into Ontario, or having Ontario-based customers, is enough on its own to trigger the requirement. That’s not necessarily true — selling into a province is different from carrying on business within it. The distinction usually turns on whether the corporation has an actual, ongoing operational presence here, not simply revenue from Ontario customers.

Two Different Fee Paths, Depending on Where You’re From

Ontario’s fee structure for extra-provincial registration depends on whether your corporation is Canadian or was incorporated outside Canada:

These figures come from the Ontario government’s current fee schedule — verify the amount that applies to your corporation before you file, since fees can change.

What Happens If You Skip It

Operating in Ontario without registering when required can create real practical friction, even before it becomes a formal enforcement issue:

• Difficulty being taken seriously by Ontario landlords, lenders, or government agencies who expect to see a registered presence
• Complications signing certain contracts or completing financing
• Potential difficulty commencing or defending a lawsuit in Ontario courts until the registration gap is fixed

None of this means the corporation stops existing — it means you’re operating here in a way the province doesn’t yet formally recognize, which tends to surface at inconvenient moments, such as when a bank, landlord, or opposing party in a dispute asks for proof of your Ontario registration and there isn’t any.

How to Register

1. Confirm your home jurisdiction’s corporation is in good standing — Ontario will expect this before registering it here.
2. Determine which fee path applies — Canadian corporation (including CBCA) versus a corporation incorporated outside Canada.
3. File the appropriate registration through the Ontario Business Registry.
4. Keep your information current afterward — changes to directors, officers, or your Ontario address should be reported through a notice of change, and Canadian extra-provincial corporations also file ongoing returns to stay current.

Frequently asked questions