Last updated: June 2026
Informational Purposes Only
OntarioSelfEmployedTaxCalc.ca provides estimates for Ontario self-employed tax planning purposes only. Results are not intended to constitute, and should not be interpreted as, financial advice, tax advice, accounting advice, payroll advice, or legal advice of any kind.
Results do not reflect official determinations by the Canada Revenue Agency (CRA), the Ontario Ministry of Finance, or any other federal or provincial government body.
No Professional Advice
Nothing on this site should be relied upon as a substitute for consultation with a qualified tax professional, CPA, accountant, or the CRA. If your self-employed tax situation is complex, or if you need to verify specific amounts, consult a qualified professional or contact the CRA directly.
Not Government Affiliated
This site is independent and not affiliated with, endorsed by, or connected to the CRA, the Ontario Ministry of Finance, Employment and Social Development Canada, Service Canada, or any other federal or provincial government body.
Accuracy and Updates
Calculator results are estimates based on publicly available 2026 federal and Ontario tax rates, CPP contribution limits, and Ontario Health Premium tiers. Actual amounts may differ due to factors including but not limited to additional tax credits, RRSP contribution room, capital cost allowance, CPP Schedule 8 calculation differences, Ontario tax reduction, and changes to rates or thresholds after this calculator was last updated.
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 financial decisions.
No Professional Relationship
Use of this site does not create an accountant-client, advisor-client, lawyer-client, or payroll-provider relationship between you and the site operator.
Limitation of Liability
To the fullest extent permitted by applicable law, the operators of OntarioSelfEmployedTaxCalc.ca are not liable for any decisions or outcomes based on calculator estimates, including direct, indirect, incidental, special, consequential, or punitive damages.
This limitation applies regardless of whether the claim is based in contract, tort, negligence, or any other legal theory, even if the possibility of such damages has been advised.