Self-Employment Tax Calculator
Calculate your total tax liability as a self-employed Canadian, including both shares of CPP, federal and provincial income tax, and quarterly installment amounts.
Self-Employment Income
Self-Employment Tax Summary
Effective Tax Rate
28.0%Quarterly Installment
$5,973How it works: Self-employed Canadians pay both the employee and employer shares of CPP (11.9% combined). The employer-equivalent half of the base CPP rate plus all of the CPP enhancement (including CPP2) is deductible from taxable income; the remaining base-CPP half generates a non-refundable tax credit instead, same as an employee’s own CPP withholding. EI is optional for self-employed individuals and is not included here. CRA requires quarterly tax installments if your net tax owing exceeds $3,000.
Self-Employment Tax in Canada
Self-employed individuals pay both the employee and employer portions of CPP contributions, totaling 11.9% of net self-employment earnings (up to the YMPE). Of the base 9.9% portion, the employer-equivalent half is deductible from income; the other half generates a non-refundable tax credit instead. The CPP enhancement layered on top of the base rate is fully deductible.
CPP2 (Enhanced): An additional 8% (both shares) applies on earnings between the YMPE and the second earnings ceiling, and is fully deductible from income (no credit portion).
Quarterly installments: If your net tax owing exceeds $3,000 in the current year and either of the two previous years, CRA requires you to pay tax in quarterly installments (March 15, June 15, September 15, December 15).
EI: Employment Insurance is optional for self-employed individuals and is not included in this calculation. You can opt in through Service Canada for special benefits.
Sources
Last updated April 2026. Reflects 2026 tax year rates.
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