Ontario business owners got good news in 2026. The Ontario small business tax rate dropped from 3.2% to 2.2%, effective July 1, 2026. Combined with the 9% federal rate, qualifying active business income is now taxed at about 11.2% inside a corporation. That gap compared with personal tax rates has more people asking: should I incorporate in Ontario? Here’s how I think about it as a CPA.
Ontario and Federal Small Business Tax Rates for 2026
A Canadian-controlled private corporation (CCPC) earning active business income can claim the small business deduction on its first $500,000 of that income each year.
| Rate | Federal | Ontario | Combined |
|---|---|---|---|
| Small business rate, before July 1, 2026 | 9% | 3.2% | 12.2% |
| Small business rate, from July 1, 2026 | 9% | 2.2% | 11.2% |
| General rate (income over $500,000) | 15% | 11.5% | 26.5% |
If your fiscal year straddles July 1, 2026, the Ontario rate is prorated by days. A corporation with a calendar 2026 year-end pays a blended provincial rate of about 2.7% for the year. (2026 corporate income tax rates)
The Catch: You Pay Personal Tax When Money Comes Out
A low corporate tax rate doesn’t mean low tax overall. It means tax deferral. When you take money out as salary or dividends, you pay personal tax, and Canada’s system is designed so total tax is roughly similar either way.
The real advantage comes when you don’t need all the profit to live on. Money left in the corporation is taxed at about 11%, and the rest can be reinvested in the business, used to pay down debt or invested for the future.
When Incorporating in Ontario Usually Makes Sense
- Your business earns more than you need for personal living costs.
- You want to keep profits in the business to grow, hire or buy equipment.
- You want limited liability for business debts and contracts (personal guarantees and professional liability still apply).
- You may sell one day, where incorporation can open up the lifetime capital gains exemption on qualifying small business shares.
- You want flexibility in how and when you pay yourself.
When Incorporation Often Doesn’t Make Sense
- You need every dollar the business earns to live on.
- Profits are modest, and incorporation and accounting costs would eat the benefit.
- Your work would be a “personal services business” (essentially an employee working through a company), which doesn’t get the small business rate.
Watch Out for Passive Investment Income
If your corporation builds up investments, be careful. When passive investment income goes above $50,000 in a year, the small business limit shrinks the following year, and it disappears entirely at $150,000. That can wipe out much of the benefit of saving inside the company, so plan investments with this in mind. If you own several companies, a holding company structure also needs to account for associated corporations sharing the $500,000 limit.
Salary or Dividends: How to Pay Yourself From Your Corporation
- Salary creates RRSP room and CPP contributions and is deductible to the company, but requires payroll remittances and T4s.
- Dividends are simpler to administer and don’t need payroll, but they don’t create RRSP room or CPP benefits.
Most owner-managers use a mix. With Ontario’s lower small business rate and dividend tax credit changes coming in 2027, it’s worth rerunning your salary-dividend plan this year.
Corporate Tax Deadlines in Canada
- T2 corporate tax return: due six months after your fiscal year-end.
- Balance owing: generally due two months after year-end (three months for many small CCPCs claiming the small business deduction).
- Instalments: may apply once your corporate tax is above $3,000.
Like the self-employed tax deadlines, a corporation’s payment deadline comes before its filing deadline.
Bottom Line: Should You Incorporate?
Ontario’s 2026 tax cut makes incorporation more attractive for profitable small businesses, especially owners who can leave money in the company. But it’s a structural decision with real costs and paperwork. Run the numbers for your situation before you file articles of incorporation.
Frequently Asked Questions
What is the Ontario small business tax rate in 2026?
Ontario’s small business corporate tax rate dropped from 3.2% to 2.2% effective July 1, 2026. Combined with the 9% federal rate, the total small business rate is 11.2%, prorated for fiscal years that straddle July 1.
What is the federal small business tax rate in Canada?
The federal small business rate is 9% on the first $500,000 of active business income earned by a Canadian-controlled private corporation.
When should I incorporate my business in Ontario?
Incorporation usually makes sense when your business earns more than you need to live on and you can leave profits in the company. If you need all the income personally, the benefit is often small.
Does passive income affect the small business deduction?
Yes. When a corporation’s passive investment income exceeds $50,000 in a year, its small business limit is reduced the following year, and it is eliminated at $150,000.
This article is general information, not tax advice. Rules and amounts change, so confirm details with the Canada Revenue Agency or a qualified professional.
Thinking about incorporating? Wealth Street Services can model the numbers for your business. Contact Gur Sian.
About the author: Gur Sian, MBA, CPA, is a Brampton, Ontario entrepreneur and the CEO of Wealth Street Services Inc. (accounting, tax, financial planning and investment management) and The Elev8 Media Inc. (digital marketing and video production). He also operates Sian Real Estate Inc.
[…] Registered businesses also have income tax obligations. See the CRA tax deadlines for self-employed Canadians, and if you’re growing fast, whether it’s time to incorporate in Ontario. […]