Enter your net self-employment income (after expenses) and province to see the income tax plus both halves of CPP you should be setting aside through the year. Unlike an employee, nobody withholds this for you — and you pay the employer share of CPP too. Rates are current for the 2025 tax year.
Your business income
How it works. Self-employed people pay both the employee and employer halves of CPP on their net business income, but the employer half is deductible — so the calculator computes CPP first, deducts that half, then applies the federal and provincial brackets to what remains. EI is not included because it is optional for the self-employed.
Set aside for tax and CPP
$0
0% of your net income goes to tax and CPP
The deductible employer half of CPP is approximated here rather than solved exactly. No EI is included — the self-employed pay it only if they opt in for special benefits — and GST/HST is a separate obligation once you are registered.
An estimate is a starting point. Get your real number.
This calculator uses published rates. Your actual position depends on the credits, deductions and structure behind your numbers.
- A professional tax accountant reviews your figures, not a formula
- Fixed quote before any work starts
- You pay after you approve the filing
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Self Employed Tax Calculator Pricing and Fees
An employee and their employer each pay half of CPP; when you work for yourself, you are both parties, so you pay both halves — 5.95% twice on pensionable earnings up to the first ceiling, plus both sides of the CPP2 band above it. The consolation is that the employer half is deductible against income, which this calculator builds in. On top of CPP sits ordinary federal and provincial income tax on your net T2125 profit, with nothing withheld at source: the set-aside habit is the whole game.
Deadlines split too. Self-employed returns are due June 15, but any balance owing is due April 30 — interest starts running from May 1 regardless of the later filing date. And once your net tax owing passes $3,000 in back-to-back years, CRA expects quarterly instalments rather than one spring payment.
What this calculator does not cover
It starts from net income, so it does not optimize your expenses — home-office costs, vehicle use and capital purchases can move the number materially before tax is ever calculated. Vehicle claims have their own math in the mileage allowance calculator. GST/HST is also outside the estimate: once your revenue passes the small-supplier threshold you must register and remit, which the registration threshold checker tests for you. For a return that captures every deduction you are entitled to, see our personal tax filing services.
| Item | Employee | Self-employed |
|---|---|---|
| CPP | One half | Both halves |
| EI | Required | Optional |
| Tax withheld | Each cheque | You set aside |
| Filing deadline | April 30 | June 15 (pay by April 30) |
Rates reviewed for the 2025 tax year by Udit Gupta, Founder and Tax Accountant. Federal and provincial rates change annually, and this tool is an estimate for planning rather than tax advice. Confirm current figures before relying on them for a filing.
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Rates and method reviewed by Udit Gupta
Ex Big 4 — Ernst & Young, Deloitte · International & cross-border tax specialist · CPA Canada (In-Depth Tax Program) · Chartered accountant, ICAI & MIA
Udit Gupta has over 15 years of experience helping corporations and business owners with corporate structuring, corporate tax filing, bookkeeping, payroll, GST/HST, cross-border tax and CRA representation. He is Big 4 trained, at Ernst & Young and Deloitte, and qualified as a chartered accountant in India and again in Malaysia. In 2014 he founded his accounting practice to serve entrepreneurs, startups and non-resident business owners across Canada. View full member bio.
The Institute of Chartered Accountants of India — member 521458 · Malaysian Institute of Accountants — member CA 44667 · Ex Big 4: Ernst & Young, Deloitte · CPA Canada (In-Depth Tax Program), completed 19 Dec 2023 · In-Depth GST/HST Part I, 12 Jul 2022 · Part II, 5 Jul 2023
Editorial policy. Every page is researched against primary sources — the Income Tax Act, CRA publications and CPA Canada guidance — and every rate or threshold is stated with the tax year it applies to.
Sources. Canada.ca — Personal income tax · Income Tax Act (Justice Laws Website)