This article is for informational purposes only and does not constitute tax or financial advice. Consult a qualified accounting professional before making any tax or financial decisions.
Quick answer
Ontario’s small business corporate income tax rate falls from 3.2% to 2.2% on July 1, 2026. The lower rate applies to the first $500,000 of active business income earned by a Canadian-controlled private corporation, or CCPC. Combined with the 9% federal small business rate, the total rate on eligible income drops from roughly 12.2% in 2025 to about 11.2% once the change is fully in effect in 2027. A CCPC earning the full $500,000 of eligible income may save up to $5,000 per year. Corporations with fiscal years that straddle July 1, 2026 will apply a prorated rate.
Why Ontario’s 2026 tax cut matters for your corporation right now
On March 26, 2026, Ontario’s Finance Minister tabled the 2026 provincial budget. Tucked inside the headline numbers was a one-percentage-point cut to the small business corporate income tax rate, effective July 1, 2026. It is the first time the rate has moved in several years.
For incorporated professionals, family-owned SMEs, and owner-managed businesses across the province, that cut is not just a line item. It can free up cash for hiring, equipment, retained earnings, or a cushion against rising operating costs. A CCPC earning the full small business limit may see up to $5,000 in annual tax savings once the change is fully phased in.
The rate change also interacts with the 2026 Canadian tax landscape in ways many owner-managers will miss, including a personal tax change on dividends in 2027. This article walks through what changed, who benefits, how much, and exactly what to do before your next year-end.
What actually changed in Ontario’s 2026 budget
A few definitions matter here. A CCPC is a private corporation resident in Canada that is not controlled by non-residents or public companies. Active business income is income from a business actively carried on, as opposed to passive investment income. The small business deduction, or SBD, is the mechanism that gives CCPCs access to the reduced rate.
Two details often surprise owner-managers. First, the $500,000 business limit begins to phase out when a CCPC, or a group of associated CCPCs, has more than $10 million of taxable capital employed in Canada, and it is eliminated entirely at $50 million. Second, Ontario’s non-eligible dividend tax credit rate will drop from 2.9863% to 1.9863% effective January 1, 2027, which raises the personal tax rate on dividends paid out of small-business-rate income.
The rate cut is enabled through Bill 97, introduced after budget day. For context on how this fits into the broader package, see other 2026 tax changes for Canadian businesses.
Quick start: which path applies to you?
Before you plan, figure out which bucket your situation falls into. The tax cut does not apply equally to everyone who calls themselves a small business.
The cut does not apply. Unincorporated business income is taxed on your personal return at personal rates. If you have been weighing whether to incorporate, the wider rate gap may be worth revisiting.
You likely capture the full benefit, provided your corporation clears the CCPC tests and is under the taxable capital thresholds.
Only the first $500,000 qualifies for the reduced rate. Income above that limit is taxed at the general corporate rate, which is unchanged.
Your small business limit is reduced on a straight-line basis, so your benefit is partial. Above $50 million in taxable capital, the limit is eliminated.
How the new rate compares: 2025, 2026, and 2027 side by side
Two things do not change. The general corporate tax rate on active business income above the small business limit remains at approximately 26.5% combined. The rate on investment income earned inside a CCPC also remains unchanged at roughly 50.17%. If you want a full walkthrough of how these layers fit together, see a full breakdown of Canadian corporate tax rates.
What the cut looks like in real dollars
Rates on their own can feel abstract. Two worked examples make the impact concrete. Both assume a CCPC that qualifies for the full small business deduction, is based in Ontario, and has a calendar fiscal year.
Example A — the $200,000 CCPC. A typical incorporated consultant or clinic owner earning $200,000 in active business income would have paid approximately $24,400 in combined federal and Ontario corporate tax in 2025. In 2026, with the rate blended across the year, the bill falls to roughly $23,400. By 2027, with the 2.2% rate in effect for the full year, the bill lands near $22,400. That is approximately $2,000 in annual savings once the change is fully phased in.
Example B — the $500,000 CCPC. A family-owned SME hitting the small business limit would have paid around $61,000 in 2025, roughly $58,500 in 2026, and about $56,000 in 2027. That is savings of up to $5,000 per year, consistent with the figure cited by the Ontario Ministry of Finance.
For fiscal years that straddle July 1, 2026, the rate is prorated. In plain language, days in the fiscal year before July 1 are taxed at the old rate and days on or after July 1 are taxed at the new rate. A February year-end, for example, would see only a partial benefit in the fiscal year ending February 2027.
If you want to layer the rate cut on top of other deductions, read more small-business tax-saving strategies.
Your step-by-step roadmap before your next year-end
The rate cut is automatic once enacted, but capturing the full benefit and avoiding surprises generally requires a few deliberate steps. Work through these with your accountant well ahead of your fiscal year-end.
- 1Confirm your CCPC status.Verify that your corporation is Canadian-controlled, private, and resident in Canada. Recent share transactions, foreign investment, or changes in control can affect this.
- 2Project your active business income against the $500,000 limit.Only active business income qualifies. Investment income, rental income in some cases, and specified investment business income generally do not.
- 3Check for associated corporations.If you own, control, or share ownership of more than one corporation, you may have to share a single $500,000 limit across the group. This catches many owner-managers who set up a holding company or a sibling corporation.
- 4Review your taxable capital position.If your CCPC or associated group has taxable capital employed in Canada above $10 million, your small business limit is phased out. Above $50 million, it is eliminated.
- 5Model the straddle-year proration.If your fiscal year crosses July 1, 2026, ask your accountant to calculate the blended rate for your specific year-end. This matters most for non-calendar year-ends.
- 6Revisit your 2027 compensation mix.Because the non-eligible dividend tax credit is dropping on January 1, 2027, the long-running salary-versus-dividend analysis may tilt differently next year. Plan it in 2026, not the night before your T4 slips go out.
For deeper context on timing and cash-flow planning, see fiscal year 2026 planning.
The 2027 dividend catch most owner-managers will miss
Ontario is lowering corporate tax and, at the same time, raising the personal tax on non-eligible dividends. The result is that the top combined federal and Ontario personal tax rate on non-eligible dividends rises from 47.74% in 2026 to 48.89% in 2027, according to budget commentary from major firms including PwC and KPMG.
This is not a clawback. It is tax integration. The principle is that income earned through a corporation and distributed as a dividend should be taxed at roughly the same total rate as income earned directly. When the corporate rate goes down, the personal rate on dividends paid from that corporate income typically goes up by a corresponding amount.
What it means practically is that owner-managers who pay themselves through dividends should not simply assume they are better off. The total tax bill, corporate plus personal, may be similar. Where the cut helps most is when income is retained in the corporation for reinvestment rather than paid out as a dividend right away.
For related CRA guidance on how corporate dividends are taxed and reported, see recent CRA rules affecting dividends.
Common mistakes Ontario SME owners make with the rate cut
Even with the numbers in hand, owner-managers often stumble on the same handful of planning traps. Avoiding them is usually the difference between full savings and partial savings.
- →Assuming the cut applies to every dollar of business income. The reduced rate caps at $500,000 of active business income per CCPC or associated group.
- →Forgetting about associated corporation rules. Owning or controlling more than one corporation can force you to share a single $500,000 limit across the whole group.
- →Ignoring the $10 million to $50 million taxable capital phase-out. As your balance sheet grows, the small business limit shrinks, even if your income does not.
- →Mishandling the straddle-year proration. Non-calendar year-ends need a blended calculation, not a clean before-and-after snapshot.
- →Failing to update the 2027 salary-versus-dividend mix. A strategy built on 2025 dividend math may not be optimal once the dividend credit change takes effect.
- →Treating the cut as a standalone reason to incorporate. The rate is only one factor. Legal liability, cash-flow needs, and the cost of maintaining a corporation still matter.
For the broader list of common tax mistakes, read our companion guide.
Frequently asked questions about Ontario’s 2026 small business tax cut
What is Ontario’s new small business tax rate in 2026?
When does the 2.2% rate actually start?
Do I get the full savings if my fiscal year doesn’t line up with July 1?
Does the cut apply to my sole proprietorship?
How much will my corporation actually save?
What happens if my business earns more than $500,000?
Why is the dividend tax going up in 2027 if the corporate rate is going down?
Do I need to do anything with the CRA to claim this?
How ClearWealth helps you capture every dollar of the cut
The Ontario small business rate cut is good news, but the benefit is not automatic in the way most owner-managers assume. Our corporate tax planning services are built for exactly this kind of moving-target planning across Ontario SMEs and incorporated professionals.
Book a consultationThis article is for informational purposes only and does not constitute tax or financial advice. Consult a qualified accounting professional before making any tax or financial decisions.
Sources and references
- Ontario Ministry of Finance — 2026 Ontario Budget Annex: budget.ontario.ca/2026/annex.html
- Legislative Assembly of Ontario — Bill 97, Plan to Protect Ontario Act (Budget Measures), 2026: ola.org/en/legislative-business/bills/parliament-44/session-1/bill-97
- Canada Revenue Agency — Corporation tax rates: canada.ca/en/revenue-agency (corporation tax rates)
- Canada Revenue Agency — Small Business Deduction: canada.ca/en/revenue-agency (small business deduction)
- PwC Canada — Tax Insights: 2026 Ontario budget: pwc.com/ca/en/services/tax/budgets/2026/ontario.html
- KPMG Canada — Highlights of the 2026 Ontario budget: kpmg.com/ca/en/insights/2026/03/highlights-of-the-2026-ontario-budget.html
- Financial Accountability Office of Ontario: fao-on.org
