Ontario Articles of Incorporation: Key Choices Explained Before You File

When you incorporate in Ontario, you file articles of incorporation — the founding document of your corporation under the Ontario Business Corporations Act (OBCA). Think of the articles as your company's constitution. Most of what's in them can technically be amended later, but amendments cost time and money. Making the right calls at the start is far cheaper.

This article walks through every major section of Ontario articles of incorporation and explains what each choice means in practice.

What Are Articles of Incorporation?

Articles of incorporation are the statutory document you submit to the Ontario Business Registry to create a corporation. Once accepted, the government issues a Certificate of Incorporation, and your corporation legally exists from the date shown on that certificate.

The articles are a public document — anyone can search the Ontario Business Registry and see your corporate name, incorporation date, registered office address, and authorized share structure.

Section-by-Section Breakdown

Corporate Name

You must provide the exact proposed corporate name, including the required corporate identifier: Limited, Ltd., Incorporated, Inc., Corporation, or Corp.

If you file as a numbered company, leave the name field blank and Ontario assigns the number. For named companies, you attach a NUANS report (see our companion article on the NUANS name search).

Registered Office Address

Every Ontario corporation must have a registered office in Ontario — a physical address (not a P.O. box) where legal documents can be served. This address is public. Many founders use their law firm or a registered agent's address to avoid putting their home address on the public record.

Number of Directors

You declare a minimum and maximum number of directors, or a fixed number.

• Fixed number (e.g., "1 director"): simple and common for solo founders.
• Range (e.g., "minimum 1, maximum 10"): common for companies that anticipate growth or investor involvement.

A corporation can have a single director, who can also be the sole officer. Under the OBCA as of writing, there is no Canadian residency requirement for directors (the requirement was removed in 2021 — verify the current rule applies to your situation).

Restrictions on Business Activity

Most incorporations leave this blank, which allows the corporation to carry on any lawful business. You only fill this in if you want to restrict the company to specific activities.

Certain regulated professions require specific wording here (professional corporations for lawyers, doctors, accountants, etc.). If you're incorporating a professional corporation, get this section right — the Law Society, CPSO, or relevant regulatory body has prescribed requirements.

Authorized Share Structure

This is the section most founders spend the least time on — and where the most consequential decisions hide.

#### What to authorize Most private Ontario corporations authorize one or more of:

• Unlimited common shares — the standard, flexible choice for operating companies
• One or more classes of preferred shares — useful for income splitting, future financing, or bringing in investors

You can authorize unlimited shares without actually issuing all of them. The articles define what can exist; share issuance is what actually creates ownership.

#### Describing rights, privileges, restrictions, and conditions If you create more than one class, you must describe each class's:

• Voting rights (or absence thereof)
• Dividend rights (fixed, discretionary, or none)
• Priority on wind-up (who gets paid first if the company dissolves)
• Any other special features

A common setup for an Ontario operating company:

• Class A Common Shares: voting, participating in dividends and wind-up proceeds
• Class B Common Shares: non-voting, participating
• Class A Preferred Shares: non-voting, fixed dividend, redeemable, retractable — used for income splitting or holding accumulated value

The exact rights you give each class should be thought through with your accountant and lawyer together, because the share structure interacts directly with your tax planning.

Restrictions on Transfer of Shares

Private corporations in Ontario almost always include a restriction that shares cannot be transferred without the approval of the directors (or sometimes shareholders). This prevents a co-founder from selling their shares to a stranger without your consent.

Without this restriction, your corporation might inadvertently become a "distributing corporation" under the OBCA, triggering heavier public-company-style obligations. Always include a transfer restriction for a private company.

Other Provisions

This catch-all section can include provisions affecting the rights of shareholders or the management of the company that don't fit elsewhere. Most incorporations leave it blank or include only standard boilerplate.

What You Cannot Easily Change Later

The articles can be amended — but amendments require:

• A special resolution of shareholders (usually two-thirds in favour)
• Filing articles of amendment and paying a fee (verify current amount with ServiceOntario)

Things that tend to be expensive or complicated to unwind after the fact:

• Share structure: Adding a new class of shares after investors have relied on the existing structure can be contentious.
• Founder share allocations: Once shares are issued at a price, restructuring them may trigger personal tax consequences.
• Corporate name: Changing the name requires a new NUANS search and articles of amendment.

Getting these decisions right upfront is worth the cost of a lawyer's time.

Articles vs. By-Laws vs. Resolutions

Founders often confuse three distinct layers of corporate documentation:

The articles are the hardest to change; by-laws and resolutions are more flexible.

Frequently asked questions