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Ontario Tax Specialist
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Free Tax Tools

Interactive calculators and resources to help you understand your taxes. No login required.

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Federal + Ontario Income Tax Calculator

Estimate your personal income tax with real-time Federal and Ontario calculations. Enter your employment income and RRSP contributions to see your tax breakdown.

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RRSP Contribution Room Estimator

Estimate your RRSP contribution room based on your earned income. Includes over-contribution warnings and tax savings estimates.

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Tax Deadline Calendar

Key CRA and Ontario filing deadlines for personal, corporate, HST, and instalment payments.

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Forms & Resources

Links to official CRA forms, Ontario tax guides, and downloadable checklists for tax preparation.

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Estimates only — not professional tax advice. Consult a qualified tax professional for your specific situation.

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© 2026 ARG Accountax. All rights reserved. Professional Tax Services in Ontario.

Information on this website is for general educational purposes only and does not constitute professional tax or legal advice. Please consult a qualified accountant for advice specific to your situation.