What do Ontario trades actually owe in tax?
A free 2026 calculator built for self-employed Ontario contractors — not generic freelancers. It counts the CPP hit the trades always forget, and points you at the truck, tool and home-office write-offs a plain tax calculator never mentions.
Ontario adds two things most provinces don't: a surtax on higher provincial tax, and a Health Premium. Both are built into the number below.
On $80,000 net self-employment income, Ontario, 2026:
$22,126
estimated income tax + CPP for the year
Set aside $1,844/month and you will not be caught short at filing.
See exactly where every dollar goes
You have the number. The 2026 Tax-Year Pass shows the working behind it:
- Your printable 2026 Contractor Tax Report — every calculator in one accountant-ready PDF
- Line-by-line breakdown with the CRA rule cited for each amount
- The incorporation break-even tool — should you incorporate, and what it saves
- Your numbers saved on this site through the whole filing season
$5 · one time · covers the entire 2026 tax year
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What this assumes (read before you rely on it)
- Ontario resident, 2026 tax year, self-employed (sole proprietor) income only.
- Only the basic personal amount is credited — no spousal, tuition, or other credits.
- The federal BPA high-income phase-down above $181,440 is not modelled; estimates there run slightly low.
- CPP is handled the CRA way for the self-employed: the enhanced portion and CPP2 are fully deductible, and the base portion is half a deduction and half a tax credit.
- No Quebec, no capital gains, no employment income mixed in.
- This is an estimate for planning, not a filing calculation. Confirm with your accountant.
WSIB and your taxes
In Ontario construction, WSIB coverage is mandatory for most independent operators and sole proprietors — not only those with employees. Premiums are a deductible business expense.
The write-offs a generic calculator misses
- Ontario contractor forms — freeThe paperwork side: statutory worksheets, safety forms, invoices — fill and print free at Blue Crane.
- Writing off your work truckCCA Class 10 — federal, applies in Ontario too.
- Tools and equipmentClass 12 vs Class 8: the $500 line that changes everything.
- The home office deductionThe percentage-of-home method, done right.
- The 11.9% CPP surpriseWhy your first year self-employed costs more than you planned.
- The $30,000 HST decisionWhen you must register — a federal rule.
- Quarterly tax installmentsThe $3,000 rule and the four dates that catch year-two contractors.
Common questions
How much tax does a self-employed contractor pay in Ontario?
In Ontario for 2026, a self-employed contractor pays federal income tax, Ontario provincial income tax, and both halves of CPP (11.9% up to the maximum). Ontario also adds a surtax and a health premium at higher incomes. Enter your numbers above for the exact total.
How much tax on $100,000 self-employed income in Ontario?
On $100,000 of net self-employment income in Ontario for 2026, the estimated total is about $28,343 in income tax and CPP combined — roughly a 28.3% effective rate, or about $2,362 a month to set aside.
How much tax on $60,000 self-employed income in Ontario?
On $60,000 of net self-employment income in Ontario for 2026, the estimated total is about $14,603 in income tax and CPP — around a 24.3% effective rate. Enter your own figure above for an exact number.
How much should I set aside for taxes as a contractor?
A safe rule for most self-employed trades is 25–30% of net income (after expenses), set aside monthly. The calculator on this page gives you the exact figure for your province and your numbers rather than a rule of thumb.
Do I have to charge HST?
You must register for and charge GST/HST once your gross revenue passes $30,000 over four consecutive calendar quarters. This is a federal rule and applies in every province.
Do self-employed contractors have to pay tax quarterly?
Once your net tax owing tops $3,000 in the current year and one of the two previous years, the CRA requires quarterly installments (March 15, June 15, September 15, December 15). Since nothing is withheld from self-employment income, most established contractors end up on installments.
When are self-employed taxes due in Canada?
Self-employed people and their spouses get until June 15 to file, but any balance owing is still due April 30 — interest starts the day after. So file by June 15, but pay by April 30.
What can I write off as a contractor?
The big ones for trades are your work vehicle (CCA and running costs), tools and equipment, a home office or shop, materials, subcontractors, insurance, and your phone and internet on the business-use share. Each dollar of legitimate expense lowers your net income, and with it your tax and CPP.