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
Half-CPP Deduction-$4,646
Taxable Income$80,354
Federal Tax$10,365
Provincial Tax$4,487
Total Tax (Income Tax + CPP)$24,145
Net Income$60,855

Effective Tax Rate

28.0%

Quarterly Installment

$6,036

03BREAKDOWN
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How it works: Self-employed Canadians pay both the employee and employer shares of CPP (11.9% combined). Half of CPP contributions are deductible from taxable income. 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). However, the employer half is deductible from income, reducing your taxable income.

CPP2 (Enhanced): An additional 8% (both shares) applies on earnings between the YMPE and the second earnings ceiling.

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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Last updated May 1, 2026Tax year 2026

Data sources: CRA (canada.ca)

This tool is general information only, not financial advice.

Reviewed by CA Tax Tools Editorial Desk

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