Small Business Tax Rates by Province in Canada

Combined federal and provincial small business and general corporate rates for each province and territory, the small business deduction and passive income.

One of the biggest advantages of incorporating a small business in Canada is the reduced corporate tax rate on the first $500,000 of active business income. This rate comes from the combination of the federal Small Business Deduction (SBD) and each province's own small business rate, and the total varies significantly depending on where your business is located.

This guide breaks down the combined rates for every province and territory, explains how the SBD works, and covers the rules that can reduce or eliminate your access to it.

How the Small Business Deduction Works

The federal corporate tax rate is 38%, but after the federal abatement (10%) and the general rate reduction, the effective federal rate for active business income is 15% for regular corporations.

For Canadian-controlled private corporations (CCPCs), the Small Business Deduction reduces the federal rate on the first $500,000 of active business income to 9%. This is a significant benefit: the difference between 9% and 15% on $500,000 is $30,000 in tax savings.

Each province and territory then applies its own corporate tax rate on top of the federal rate. Every province and territory also offers a reduced small business rate, on the same $500,000 of income in most of them (Saskatchewan, Prince Edward Island and Nova Scotia use a higher limit, covered below).

Combined Federal + Provincial Small Business Tax Rates

The following table shows the combined effective tax rate on the first $500,000 of active business income for a CCPC eligible for the full SBD, using the 2026 rates.

Province / Territory	Provincial Small Business Rate	Combined Rate (Federal 9% + Provincial)
Alberta	2.0%	11.0%
British Columbia	2.0%	11.0%
Manitoba	0.0%	9.0%
New Brunswick	2.5%	11.5%
Newfoundland and Labrador	2.0%	11.0%
Northwest Territories	2.0%	11.0%
Nova Scotia	1.5%	10.5%
Nunavut	3.0%	12.0%
Ontario	2.7% (blended)	11.7%
Prince Edward Island	1.0%	10.0%
Quebec	3.2%	12.2%
Saskatchewan	1.0%	10.0%
Yukon	0.0%	9.0%

Lowest combined rates: Manitoba (9.0%) and Yukon (9.0%) offer the lowest combined small business tax rates in Canada because their provincial/territorial small business rate is 0%.

Highest combined rates: Quebec is highest at 12.2% for a calendar 2026 year, followed by Nunavut at 12.0%.

The Ontario and Quebec rows are for a corporation whose tax year is the 2026 calendar year, and both provinces have cut their rate (below), so they differ for other year-ends.

Recent changes to know about:

Ontario cut its small business rate from 3.2% to 2.2% effective July 1, 2026. A corporation whose tax year straddles that date gets a prorated rate, so a calendar 2026 year blends the two (about 2.7%, or 11.7% combined).
Quebec cut its small business rate from 3.2% to 2.2% for tax years beginning after April 29, 2026 (Revenu Québec, May 4, 2026), so a calendar 2026 year is still at 3.2% and a year starting in May 2026 or later gets 2.2% (11.2% combined). Quebec's deduction also requires at least 5,500 paid employee hours in the year (or in the prior year, counting associated corporations), and shrinks linearly to nil at 5,000 hours.
Newfoundland and Labrador cut its rate from 2.5% to 2.0% effective January 1, 2026 (Budget 2026).
Nova Scotia cut its rate from 2.5% to 1.5% and raised its limit to $700,000, both effective April 1, 2025.

Combined General Corporate Tax Rates (Above $500K)

Once your active business income exceeds $500,000, the higher general rate applies to income above that threshold.

Province / Territory	Provincial General Rate	Combined General Rate (Federal 15% + Provincial)
Alberta	8.0%	23.0%
British Columbia	12.0%	27.0%
Manitoba	12.0%	27.0%
New Brunswick	14.0%	29.0%
Newfoundland and Labrador	15.0%	30.0%
Northwest Territories	11.5%	26.5%
Nova Scotia	14.0%	29.0%
Nunavut	12.0%	27.0%
Ontario	11.5%	26.5%
Prince Edward Island	15.0%	30.0%
Quebec	11.5%	26.5%
Saskatchewan	12.0%	27.0%
Yukon	12.0%	27.0%

Note: Alberta has the lowest general corporate rate in Canada at 23.0% for 2026, making it an attractive jurisdiction for corporations with income well above the $500,000 threshold. Prince Edward Island lowered its general rate from 16% to 15% effective July 1, 2025.

What "Active Business Income" Means

The SBD only applies to active business income earned in Canada. This distinction is critical because different types of corporate income are taxed at different rates.

Active business income includes:

Revenue from selling goods or services
Consulting and professional fees
Contract income
Any income from a business you actively operate

What does NOT qualify as active business income:

Investment income (interest, dividends, capital gains): taxed at a much higher rate inside a CCPC (roughly 47% to 54% combined, depending on the province, for 2026)
Rental income: may be classified as investment income unless your corporation employs more than five full-time employees in the rental business
Specified investment business income: income from a business whose principal purpose is to earn investment income
Personal services business income: income from a corporation where the individual would be considered an employee if not for the corporation (no SBD and no general rate reduction, plus an additional 5% federal tax, for a federal rate of 33%)

The $500,000 Business Limit

The federal business limit is $500,000. Active business income up to this amount qualifies for the 9% federal rate. Income above it is taxed at the general 15% federal rate (rates for 2026).

Sharing the Business Limit

If you own multiple corporations that are associated (common ownership or control), they must share the $500,000 limit. You cannot create three corporations and claim $500,000 each. The total limit across all associated corporations is $500,000.

Example: You own 100% of Corporation A and Corporation B. They are associated. You must allocate the $500,000 limit between them, perhaps $300,000 to A and $200,000 to B, or any split that totals $500,000.

Provincial Business Limits

Most provinces align their business limit with the federal $500,000. Three do not, for 2026:

Saskatchewan: $600,000 (combined rate on the $500,000 to $600,000 slice: 16%, which is 15% federal plus 1% provincial)
Prince Edward Island: $600,000, up from $500,000 effective July 1, 2025 (16% combined on that slice)
Nova Scotia: $700,000, up from $500,000 effective April 1, 2025 (16.5% combined on the $500,000 to $700,000 slice, which is 15% federal plus 1.5% provincial)

The federal 9% rate still stops at $500,000 everywhere. Check the rules for your jurisdiction before relying on a limit.

The Passive Income Clawback

For tax years beginning after 2018, the federal business limit is reduced for CCPCs that earn significant passive investment income. This is one of the most important rules for incorporated small business owners to understand.

How It Works

If your corporation's adjusted aggregate investment income (AAII) exceeds $50,000 for your last tax year ending in the previous calendar year, your $500,000 business limit is reduced by $5 for every $1 of AAII above $50,000.

The math:

At $50,000 of AAII: Full $500,000 business limit
At $100,000 of AAII: Business limit reduced to $250,000
At $150,000 of AAII: Business limit reduced to $0, so you lose the SBD entirely

What Counts as AAII

AAII includes:

Interest income
Taxable capital gains (net of allowable capital losses)
Rental income (in most cases)
Foreign investment income
Dividends from portfolio (non-connected) corporations
Income from a specified investment business

AAII does not include:

Dividends from connected Canadian corporations
Capital gains from the sale of assets used in the active business

Practical Impact

A CCPC with $500,000 of active business income and $150,000 of investment income will pay the general corporate rate (15% federal) on all of its active business income instead of the 9% small business rate. The additional tax cost is $30,000 at the federal level alone, plus the provincial differential.

Strategy: Many tax advisors recommend keeping passive investments outside the corporation (in personal RRSPs or TFSAs) or using strategies to minimize AAII to preserve the SBD. This is a complex area where professional advice is essential.

Sole Proprietorship vs. Corporation: When Do Rates Matter?

The small business tax rate only applies if you are incorporated. Sole proprietors and partners pay personal income tax rates on their business income, which can exceed 50% at the top marginal bracket in most provinces (for 2026).

However, the comparison is not as simple as "12% is less than 50%." When you eventually take money out of the corporation as salary or dividends, you pay personal tax at that point. The total tax paid (corporate tax plus personal tax on withdrawal) is designed to be roughly similar to what you would pay as a sole proprietor, thanks to the integration principle in Canadian tax law.

The real advantage of incorporation is tax deferral: if you do not need all of your business income for personal expenses, the portion left in the corporation is taxed at only 9-12% (in 2026, depending on the province) instead of your marginal personal rate. That deferred tax can be invested and grown inside the corporation.

When incorporation makes sense for the tax rate advantage:

Your business consistently earns more than you need for personal living expenses
You can leave a meaningful amount in the corporation each year
You want to income-split with family members through dividends (subject to TOSI rules)

When it may not be worth it:

You withdraw all business income as salary each year
Your business income is modest
The administrative costs of maintaining a corporation (accounting, filing and legal fees) outweigh the deferral benefit

Sources

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