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Canada Corporate Tax Calculator

Calculate your federal and provincial corporate tax liability with our comprehensive Canadian tax calculator.

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Canada Corporate Tax Calculator (2026)

Calculate your federal and provincial tax liability with confidence.

Looking for current tax rates? View our comprehensive2026 Corporate Tax Rates Guide with detailed rate tables for all provinces and territories.

Key Features:

  • 2026 federal and provincial tax rates
  • CCPC small business deduction calculations
  • Investment income and capital gains support
  • All Canadian provinces and territories

What's Updated for 2026:

  • Latest federal corporate tax rates
  • Updated provincial and territorial rates
  • Current small business thresholds
  • Revised investment income rules

How this calculator works

We show our assumptions and sources so you can audit the logic.

Calculation steps

  1. Determine corporation type and jurisdiction.
  2. Apply federal corporate tax rate for the income type.
  3. Add the applicable provincial/territorial rate.
  4. Apply small business deduction where eligible.
  5. Handle investment income and capital gains separately.

Key assumptions

  • Rates are based on current public federal and provincial schedules.
  • Small business deduction applies only to active business income.
  • Results are estimates and exclude industry-specific credits.
  • Taxable capital and associated corporation rules can reduce limits.

Sources

Last updated: December 2025.

Publisher

TaxDesk provides Canadian tax tools and educational resources for business owners and finance teams.

Reviewed by TaxDesk Research Team.

Corporate Tax Frequently Asked Questions

Clear explanations of CCPC rules, rate differences, and when to use this calculator.

CCPC

What is a CCPC (Canadian-Controlled Private Corporation)?

v
A CCPC is a Canadian-controlled private corporation that meets residency, ownership, and control requirements. CCPCs may qualify for the small business deduction and other tax benefits.
CCPC

What is the Small Business Deduction and how much can I claim?

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The Small Business Deduction allows eligible CCPCs to pay a reduced federal rate on active business income up to the federal business limit. Provincial limits can vary by jurisdiction.
RATES

How are provincial corporate tax rates applied?

v
Provincial and territorial corporate tax rates are added to the federal rate based on the corporation's jurisdiction. The calculator combines these rates to estimate total tax.
RATES

How is investment income taxed for CCPCs?

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Investment income is generally taxed at higher rates for CCPCs and may create refundable tax balances. The calculator separates investment income from active business income.
GENERAL

When should I use this corporate tax calculator?

v
Use it for estimates and planning. It does not replace professional advice or CRA guidance for complex situations.

Updated for 2026 - Information based on current CRA and Department of Finance publications.

This FAQ is for informational purposes only. Always consult official CRA guidance or a qualified tax professional for specific situations.

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Rates accurate as of substantively enacted legislation. This calculator is for estimation purposes only.

© 2026 TaxDesk. This tool is not affiliated with the Canada Revenue Agency or the Department of Finance.