Last updated: May 2026
For Informational Purposes Only
OntarioCommissionTaxCalc.ca provides estimates for informational and planning purposes only. Results produced by this calculator do not constitute tax advice, legal advice, financial advice, or any professional advisory service. Nothing on this site should be relied upon as a substitute for consultation with a qualified tax professional, accountant, or the Canada Revenue Agency (CRA).
Estimates Only — Not Guaranteed
Calculator results are estimates based on the tax rates, thresholds, and methodology described on this site. Actual withholding amounts calculated by your employer's payroll system may differ due to factors including but not limited to:
- Additional non-refundable tax credits beyond the Basic Personal Amount
- RRSP contributions, pension adjustments, or other income deductions
- Union dues, RPP contributions, or employer-specific payroll arrangements
- Differences in pay period definitions or payroll software methodologies
- Provincial tax credits or other personal credits not modelled here
- Ontario Health Premium (explicitly excluded from this calculator)
No Warranty
This site and its calculator are provided "as is" without warranty of any kind, express or implied. We make no representations or warranties regarding the accuracy, completeness, or fitness for a particular purpose of any results produced. We reserve the right to correct errors without notice.
Rates and Annual Updates
Tax rates, thresholds, and contribution limits are updated annually. While we make every effort to ensure rates reflect the current tax year, we cannot guarantee that all values are current at the time of your use. Always verify rates with the CRA or a qualified professional before making payroll or financial decisions.
No Employer or CRA Relationship
Use of this calculator does not create any relationship between you, your employer, and the CRA. Results from this calculator have no official standing and cannot be used to dispute withholding amounts with an employer or the CRA.
Limitation of Liability
To the fullest extent permitted by applicable law, OntarioCommissionTaxCalc.ca, its operators, and the Calc-HQ.ca network shall not be liable for any direct, indirect, incidental, special, or consequential damages arising from your use of, or reliance on, this calculator or any information on this site.
Governing Law
This disclaimer is governed by the laws of the Province of Ontario and the federal laws of Canada applicable therein.
Contact
For questions about this disclaimer, contact us at [email protected].