Should you incorporate your business in Ontario? A plain-language guide

In short: Incorporating usually pays off when your business earns more than you need to live on. Profit left in the corporation is taxed at 11.2% in Ontario (since July 1, 2026) instead of personal rates that reach 53.53%, and you pay personal tax only when you take the money out. It also adds yearly costs and paperwork, so the extra income has to be large enough to cover them.

Why owners incorporate

  • Tax deferral. Active business income up to $500,000 is taxed at 11.2% in the corporation. You pay personal tax later, when you take salary or dividends.
  • Limited liability. Business debts generally stay with the company, though banks often ask for personal guarantees.
  • Flexibility in paying yourself. Salary, dividends or a mix, timed to suit your personal tax bracket.
  • A future sale. Shares of a qualifying small business corporation may be eligible for the lifetime capital gains exemption.

What it costs

A corporation needs year-end financial statements, a T2 corporate return, an Ontario annual return and, if you pay yourself, payroll or dividend slips. That typically adds a few thousand dollars a year in accounting and filing fees compared with a sole proprietorship.

When it usually makes sense

A rough guide
Your situationIncorporate?
You spend almost everything the business earnsUsually not yet
The business earns well beyond what you need each yearUsually yes
You face real liability risk from customers or contractsWorth considering, alongside insurance
You plan to sell the business one dayWorth planning early

Things people overlook

  • Paying family members dividends is limited by the tax on split income rules
  • Money taken out of the company for personal use without salary or dividends can become a taxable shareholder loan
  • Investment income inside the company is taxed at a high rate and can reduce the small business limit
  • Regulated professionals, such as doctors and dentists, incorporate as professional corporations under their college’s rules

We look at your actual numbers and show you the after-tax result both ways before you decide. See incorporating a business in Ontario.

Common questions

How much income do I need before incorporating?

There is no single number. It depends on how much you need to live on, because the savings come from profit left in the company. We compare both options with your figures.

Ontario or federal incorporation?

If you operate mainly in Ontario, a provincial corporation is usually simpler and cheaper. Federal incorporation gives wider name protection across Canada.

Can I incorporate partway through the year?

Yes. The sole proprietorship ends, the corporation starts, and assets can usually be transferred to the corporation on a tax-deferred basis with the right election.

This article is general information based on the rules as of its date, not advice for your situation. Talk to us before acting on it.

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