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An S corporation is a US tax status, and Canada doesn’t have one. The closest thing here is the Canadian-controlled private corporation, which pays 9% federal tax on its first $500,000 of active business profit and 15% above that.
What is an S corporation, and who can be one?
The IRS describes it as a corporation that elects to pass its income, losses, deductions and credits through to its shareholders. Those owners then report the profit on their own personal returns. The election is made on Form 2553.
The limits are tight: the corporation has to be domestic, with no more than 100 shareholders and one class of stock, and its owners can be individuals, certain trusts and estates, but not partnerships, other corporations or non-resident aliens.
If you’re a Canadian resident with no US tax status, that last rule is the one to notice. It suggests you can’t hold shares in an S corporation at all. If you’re a US citizen living in Canada, the answer may be different, and it’s a question for someone who prepares both countries’ returns.
What does a Canadian owner use instead?
You either run the business yourself as a sole proprietor, or you incorporate. A sole proprietor pays personal tax on the profit, as with the S corporation idea. An incorporated company pays its own tax first, and you pay a second layer when you take money out as salary or dividends. If you go into business with someone else without incorporating, a partnership works much like the sole proprietor case: each partner reports their share of the profit.
The small business rate is the reason people incorporate. The CRA says the net rate is 9% for a Canadian-controlled private corporation that claims the small business deduction. Provinces add their own rate on top.
| Item | Rate or limit |
|---|---|
| Federal rate, small business | 9% on the first $500,000 |
| Federal rate, general | 15% |
| Ontario combined, small business, calendar 2026 | 11.7% |
| Ontario combined, above the limit | 26.5% |
| Alberta combined, small business | 11.0% |
| Alberta combined, above the limit | 23.0% |
The Ontario figure is a blend. Ontario cut its small business rate on 1 July 2026, so a corporation with a calendar year sits between the old and new rate. We’d expect about 11.2% from 2027, but that number is our own working, not a published one.
What does $100,000 of profit look like in Ontario?
Put $100,000 of active business profit in an Ontario company and the corporate tax calculator shows $11,696 of tax, split into $9,000 federal and $2,696 Ontario. That leaves $88,304 inside the company.
Now pay all of it out as a non-eligible dividend to an owner with no other income. The dividend tax calculator gives $9,684 of personal tax, so you keep $78,620. Total tax is about $21,380.
Compare that with running the same $100,000 as a sole proprietor. The self-employed tax calculator shows $28,338 of income tax and CPP, which leaves $71,662. So the corporation route leaves about $6,958 more in your pocket in this one case. The sole proprietor’s bill includes $9,293 of CPP, though, and CPP isn’t a pure cost: it builds your future pension, and a dividend doesn’t earn that room. So the corporation isn’t a free win. You give up pension credit and pay for accounting and filing.
Do the sums before you pay for incorporation.
Leave the profit in the company and the saving looks bigger, because you haven’t paid the second layer yet. That deferral is the real benefit for many owners, though it only works if you don’t need the cash. Say Maya, a contractor in Mississauga, spends nearly all of what she earns. For her, the deferral is worth little, and the extra paperwork is a real cost.
Where does incorporating go wrong?
Three limits catch people. The small business limit is shared among associated corporations, so two companies under common control don’t get $500,000 each. The limit shrinks when a corporation has large taxable capital or passive investment income above $50,000. And the federal rate only helps a Canadian-controlled private corporation, not any company.
The calculators skip those cases, plus credits and the tax on paying money out in ways other than dividends. Quebec adds a paid hours test for the full reduction, and its details aren’t something we could confirm from a Revenu Quebec page, so treat Quebec numbers as approximate.
If you also want to know what your own pay looks like after tax, the take-home pay calculator covers salary. Many owner-managers mix salary and dividends, and the right mix is a job for an accountant with your books in front of them.
Can you still get an S corporation if you move to Canada?
It depends on who owns the shares. The IRS lists non-resident alien shareholders as ineligible, so an owner’s residence and citizenship matter before any shares change hands. Canadian tax treatment of a US S corporation is also its own topic, since the two countries see the entity differently. If this is your situation, get written advice from someone who prepares both countries’ returns before you move shares or change residence.
Where we got these figures
US eligibility comes from the IRS page on S corporations. Canadian rates come from the CRA‘s corporation tax rates page and the T2 guide, and the provincial figures from the provincial pages linked to it, all rechecked on 29 September 2026. This site has no connection with the CRA, the IRS or any other government body.
Frequently asked questions
Can a Canadian company be an S corporation?
No. The IRS rules require a domestic US corporation, and the list of allowed shareholders leaves out non-resident aliens.
What is the Canadian version of an S corporation?
There isn't an exact one. The closest option is a Canadian-controlled private corporation, which pays 9% federal tax on its first $500,000 of active business profit.
Does an S corporation avoid double taxation?
The IRS says income passes through to shareholders' personal returns. A Canadian company pays its own tax first and the owner pays again on dividends or salary.
How much tax does a Canadian small business pay on $100,000?
In Ontario for a calendar 2026 year, $11,696 at a combined 11.7%. Rates change by province and Ontario's rate fell on 1 July 2026.
Should I incorporate or stay a sole proprietor?
Compare your own numbers in both calculators. On $100,000 the sole proprietor figure includes $9,293 of CPP that a dividend-only owner doesn't pay or earn.
- Self-employed taxes in Canada: income, CPP and GST
How tax works when you are self-employed in Canada: reporting income and expenses, paying both halves of CPP, instalments and when to register for GST