Free calculator • 2026
Corporate Tax Estimator
Estimate corporate income tax using the federal small-business or general rate and the selected province’s rates.
Important limitation
This tool provides a simplified estimate from the information entered. It does not account for every deduction, credit, benefit, surtax, premium, repayment, special rule or personal circumstance. The estimate does not determine CCPC status, associated-corporation limits, taxable-capital or passive-income grinds, provincial allocation, refundable taxes, investment income, loss utilization, credits or special industry rules. Quebec small-business-rate eligibility has additional conditions.
Official references:CRA corporation tax rates
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