Corporate Tax Estimator
A quick planning estimate of what your incorporated Canadian small business will owe in corporate income tax on this year's profit. Enter your expected profit, pick your province, done.
Estimate Your Corporate Tax
For Canadian-controlled private corporations (CCPCs) earning active business income.
Enter your expected profit before tax to see the estimate.
This is a planning estimate, not tax advice
I am a bookkeeper, not a CPA. I do not prepare or file T2 returns. This is a number to help you set money aside, nothing more.
It also covers corporate tax only. Paying yourself a salary or a dividend out of what is left is a separate tax bill, and how you split that is a conversation for your accountant.
The estimate assumes a Canadian-controlled private corporation earning active business income, with the full small business deduction available. It will be off if any of these apply to you:
- Your corporation earns investment or rental income (taxed at much higher rates, and over $50,000 it also shrinks your small business limit)
- You own or are associated with more than one corporation (they share one small business limit)
- Your fiscal year straddles a provincial rate change (the rates get prorated)
- Quebec has extra qualification rules based on hours paid
- You have losses carried forward, capital gains, or dividends being paid out
If any of those sound like you, this number is a starting point at best. Talk to an accountant, or reach out and I'll point you in the right direction.
2026 Combined Corporate Tax Rates
Federal plus provincial, as of September 2026. The small business rate applies to active business income up to the limit; the general rate applies above it.
| Province / Territory | Small Business Rate | General Rate | Business Limit |
|---|---|---|---|
| Alberta | 11.0% | 23.0% | $500,000 |
| British Columbia | 11.0% | 27.0% | $500,000 |
| Manitoba | 9.0% | 27.0% | $500,000 |
| New Brunswick | 11.5% | 29.0% | $500,000 |
| Newfoundland and Labrador | 11.0% | 30.0% | $500,000 |
| Nova Scotia | 10.5% | 29.0% | $700,000 |
| Northwest Territories | 11.0% | 26.5% | $500,000 |
| Nunavut | 12.0% | 27.0% | $500,000 |
| Ontario* | 11.2% | 26.5% | $500,000 |
| Prince Edward Island | 10.0% | 30.0% | $600,000 |
| Quebec* | 11.2% | 26.5% | $500,000 |
| Saskatchewan | 10.0% | 27.0% | $600,000 |
| Yukon | 9.0% | 27.0% | $500,000 |
Your selected province is highlighted. Rates change with provincial budgets; this table reflects rates in effect September 2026.
* Ontario and Quebec both cut their small business rate part way through 2026, so a corporation whose tax year spans the change pays a higher blended rate than the one shown. Select the province above to see what that does to your estimate.