CA Tax Tools

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.

01INPUTS

Self-Employment Income

02RESULTS

Self-Employment Tax Summary

Gross Income$100,000
Business Expenses-$15,000
Net Profit$85,000
CPP (Self-Employed)$8,461
CPP2 (Enhanced)$832
CPP Deduction (Lines 22200/22215)-$5,773
Taxable Income$79,227
Federal Tax$9,641
Provincial Tax & Levies$4,956
CPP Tax Credit Applied (Line 31000, already reflected above)$670
Total Tax (Income Tax + CPP)$23,890
Net Income$61,110

Effective Tax Rate

28.0%

Quarterly Installment

$5,973
03BREAKDOWN
Share

How 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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