When Should I Incorporate My Business? Signs It Is Time (Canada, 2026)
- Targeted Accounting
- Business
Table of Contents
When Should I Incorporate My Business?
Most sole proprietors start asking about incorporation once the business is making real money. The short answer: a corporation saves tax only on profit you leave inside it, and it adds cost and paperwork from day one. If you are still getting to grips with sole proprietorship taxes, start there, because the comparison below assumes you know what you pay today.
This guide runs the numbers with 2026 Ontario rates, then covers the signs it is time, the signs it is not, what incorporation costs and what changes once the corporation exists. For the legal differences between business structures, see our comparison of sole proprietorship vs corporation vs partnership.
How the Tax Deferral Works When You Incorporate
As a sole proprietor, every dollar of profit lands on your personal return in the year you earn it, spent or not. In Ontario, the top combined federal and provincial rate for 2026 is 53.53% on income above $258,482, and the rate on income above $181,440 is already close to 48% (see the CRA’s 2026 federal and Ontario tax brackets).
A Canadian-controlled private corporation pays tax on its active business income first. On the first $500,000 of that income, the federal rate after the small business deduction is 9%, and Ontario’s lower rate dropped from 3.2% to 2.2% on July 1, 2026. That makes the combined small business rate 11.2% for a tax year that starts after June 30, 2026. A tax year that straddles July 1 gets a blended rate. The CRA lists both rates on its corporation tax rates page.
The gap between those rates is the reason to incorporate, but it is a deferral, not a permanent saving. When the corporation later pays you a dividend, you pay personal tax on it. The system is designed for integration: corporate tax plus the personal tax on the dividend comes out close to what you would have paid earning the income directly, and in Ontario it is often slightly more. The deferral is real only for profit that stays in the corporation, where it can be reinvested in the business or held for a slow year, a large purchase or retirement. Our salary vs dividends worked example shows how the money you do take out is taxed.
One limit to know: once savings inside the corporation earn more than $50,000 of passive investment income in a year, the federal small business limit shrinks by $5 for every $1 over, and it reaches zero at $150,000. Ontario’s limit is not reduced this way.
Worked Example: Incorporating at $90,000 vs $220,000 of Profit
Here are two Ontario owners in 2026. Each needs $90,000 a year before tax to live on. If they incorporate, the corporation pays them a $90,000 salary and keeps the rest.
Assumptions: 2026 federal and Ontario brackets, the Ontario surtax and basic personal amounts only, and a corporate rate of 11.2%. CPP, the Ontario Health Premium and other credits are left out to keep the comparison simple. Figures are rounded.
| Scenario | Personal tax | Corporate tax | Tax paid now | Tax deferred |
|---|---|---|---|---|
| $90,000 profit, sole proprietor | $17,700 | None | $17,700 | None |
| $90,000 profit, incorporated | $17,700 | $0 | $17,700 | $0 |
| $220,000 profit, sole proprietor | $73,600 | None | $73,600 | None |
| $220,000 profit, incorporated | $17,700 | $14,560 | $32,260 | About $41,300 |
At $90,000 of profit, incorporating saves nothing. All of the profit goes out as salary, the corporation has no income left to tax, and you now pay for a corporate return and a second set of books.
At $220,000, the corporation keeps $130,000, pays $14,560 of tax and has $115,440 left to invest or hold. The $41,300 is not a saving. It is personal tax you will pay later if you take the money out as dividends. The value is the use of that money in the meantime, and the option to draw it in lower-income years. To test your own figures, try our salary vs dividend calculator.
Signs It Is Time to Incorporate Your Business
- Profit well above what you spend: If you consistently earn tens of thousands of dollars a year more than you need to live on, the deferral starts to outweigh the extra accounting cost. The larger and steadier that surplus, the stronger the case.
- Liability exposure: A corporation is a separate legal person, so business debts and claims generally stay with it. It does not shield you from your own professional negligence or from loans you personally guarantee, and lenders usually ask owners for a guarantee, so insurance still matters.
- Plans to sell: A sole proprietor sells business assets, and those gains do not qualify for the lifetime capital gains exemption. Shares of a qualifying corporation can, and the 2026 limit is $1,275,000. The corporation has to meet asset tests over the 24 months before a sale, so incorporating well ahead matters. Our guide to the lifetime capital gains exemption in Canada explains the tests.
- Clients that require it: Some larger clients, public sector buyers and staffing agencies only contract with corporations.
- Hiring and growth: Once you have staff, a lease and equipment loans, a separate entity makes contracts, financing and bringing in a partner cleaner.
When Incorporating a Sole Proprietorship Does Not Pay Off
Incorporation rarely makes sense when you spend all the profit. If every dollar comes out as salary or dividends each year, you pay roughly the same tax as before, plus the cost of a corporate return, separate books and payroll filings.
It can also backfire for a consultant with one client who would be an employee of that client if the corporation were not there. The CRA can treat that corporation as a personal services business, which loses the small business deduction, pays a higher corporate rate and can deduct very few expenses. Before incorporating a single long-term contract, look honestly at who controls the work, who supplies the tools, who carries the risk and how easily you could take on other clients.
Early losses are another reason to wait. As a sole proprietor, a business loss can offset your other income, such as employment income from a job you are leaving. A corporation’s losses stay in the corporation and can only be used against its own future profit.
What Incorporation Costs in Ontario and Federally
Government fees are modest. The real cost is the ongoing accounting.
- Ontario incorporation: $300 to file articles of incorporation through the Ontario Business Registry, and no fee for the annual return under the Corporations Information Act (see the Ontario Business Registry fee schedule).
- Federal incorporation: $200 online with Corporations Canada, plus $12 for each online annual return (see Corporations Canada fees). A federal corporation gets name protection across Canada but still has Ontario filings to keep up.
- Annual T2 and financial statements: Every corporation files a T2 return within six months of its year-end, even in a year with no income, along with financial statements, usually a compilation. Our T2 tax return guide covers what goes into it. This is normally the largest ongoing cost.
- Separate bank account and bookkeeping: The corporation’s money is not your money. Paying personal costs from the business account creates shareholder loan problems at year-end.
- Payroll: If you pay yourself a salary, the corporation needs a payroll account, remits income tax and CPP deductions and files T4 slips by the end of February.
How to Incorporate a Sole Proprietorship: What Changes on Day One
The corporation is a new taxpayer, so most of your setup starts over.
- Business number and GST/HST: The corporation gets its own business number and, once registered, its own GST/HST account. The sole proprietorship’s GST/HST account is closed with a final return. A joint election on Form GST44 can let the business assets move across without GST/HST being charged.
- Your last T2125: Your personal return reports the sole proprietorship’s income on Form T2125 up to the date the business moved into the corporation.
- Contracts and invoices: Update client contracts, invoice templates, your website and payment details to the corporation’s legal name, and ask clients to pay the new entity.
- Year-end choice: A corporation can choose a fiscal year-end other than December 31. Many owners pick a quieter month, and the first tax year can run up to 53 weeks from incorporation.
The business itself usually moves in through a section 85 rollover. You and the corporation jointly elect, on Form T2057, a transfer price for equipment, inventory, goodwill and other assets anywhere between their tax cost and fair market value, and you take shares in return. That moves the business in without triggering tax on built-up gains. The election has a filing deadline tied to the tax returns for the year of transfer, and late filing brings penalties, so it belongs in the plan from the start.
Rules and figures reflect CRA guidance as of October 2026. This is general information, not advice for your situation.
Is It Time to Incorporate Your Business?
We can run these numbers with your actual profit, draws and plans, and tell you plainly whether a corporation pays off now or later. If it does, we handle the setup, the section 85 rollover and the first T2.
