Free calculator • 2026
Corporate Tax Planning Illustration
Estimate tax on eligible active business income while keeping the federal and provincial small-business limits separate and prorating rate changes by taxation year.
Rates last verified: August 5, 2026
Important limitation
This narrow illustration assumes eligible active business income of a qualifying CCPC. It does not determine associated-company allocations, taxable-capital or passive-income grinds, permanent-establishment allocations, investment income, refundable tax, losses, credits or special industry rules. Taxation-year dates are required for enacted rate transitions.
Official references:CRA corporation tax rates
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