Canada Self-Employed Tax Calculator (2025/26)

Worked example

How self-employed tax works in Canada in 2025

When you are self-employed in Canada, no one withholds tax from your pay. You report your profit on Form T2125 (Statement of Business or Professional Activities), which flows onto your T1 return, and you are personally responsible for the entire bill. That bill has two distinct parts that this calculator keeps separate: income tax (federal plus provincial or territorial) and CPP or QPP contributions. Confusing the two is the single most common reason freelancers get a nasty surprise in April.

Your taxable figure is net income, not revenue. Net income is what remains after you subtract legitimate business expenses such as software, home-office costs, vehicle use, supplies, professional fees and a portion of meals. Every dollar of deductible expense lowers both your income tax and your CPP, so accurate bookkeeping directly reduces what you owe.

Income tax is charged on a marginal, tiered basis. For 2025 the federal brackets are 14.5% on the first $57,375, 20.5% up to $114,750, 26% up to $177,882, 29% up to $253,414 and 33% above that. The lowest rate is a blended 14.5% rather than 14% or 15% because the government cut the bottom rate from 15% to 14% halfway through 2025, on July 1, so the year averages out to 14.5%. From 2026 onward the bottom rate is a clean 14%.

On top of federal tax you pay tax to your province or territory, each with its own brackets and its own basic personal amount. A self-employed person earning $80,000 faces a very different total in Alberta (8% bottom rate, $22,323 personal amount) than in Nova Scotia (8.79% rising quickly to 14.95%) or Quebec (14% bottom rate). The calculator applies the correct provincial schedule automatically once you pick your province.

Everyone also benefits from the basic personal amount (BPA), a slice of income that is effectively tax-free through a non-refundable credit. Federally the 2025 BPA reaches $16,129 for most earners, worth about $2,339 off your federal tax. Each province grants its own version. Because these are credits rather than deductions, the calculator subtracts them after computing bracket tax, exactly as the CRA does.

Two things this tool deliberately leaves out so it does not overstate your bill in either direction: it does not add GST/HST (a separate obligation once you pass $30,000 in revenue), and it does not model provincial health premiums such as the Ontario Health Premium. Treat the result as a clean estimate of income tax plus CPP on your profit.

CPP and QPP: why the self-employed pay both halves

This is the part that catches new freelancers off guard. An employee and their employer each pay half of CPP. When you are self-employed you are both, so you pay the full amount yourself. For 2025 the self-employed CPP rate is 11.9% (double the 5.95% employee rate), and in Quebec the QPP rate is 12.8%.

The contribution is not charged on your whole profit. You get a $3,500 basic exemption, and contributions stop at the Year's Maximum Pensionable Earnings (YMPE) of $71,300. So the base is calculated as (lesser of net income or $71,300) minus $3,500, times 11.9%. The maximum base CPP for 2025 is $8,068.20 (QPP: $8,678.40). Once your profit hits roughly $71,300 you are paying the full whack, and earning more does not increase base CPP.

Since 2024 there is a second tier called CPP2 (and QPP2 in Quebec). It applies to earnings between the YMPE of $71,300 and the Year's Additional Maximum Pensionable Earnings (YAMPE) of $81,200. The self-employed CPP2 rate is 8%, adding up to $792.00. That brings the 2025 maximum total to $8,860.20 for CPP and $9,470.40 for QPP. A freelancer netting $85,000 pays the full amount; someone netting $50,000 pays 11.9% of ($50,000 - $3,500) = $5,533.50 and no CPP2.

There is relief built into the tax rules. You can deduct half of your total CPP/QPP contributions from income (T1 line 22200), which is why the calculator computes contributions first, then reduces your taxable income by 50% of them before applying the brackets. The remaining half generates a non-refundable tax credit. This tool applies the deduction but, to stay on the safe side, does not separately apply that second credit, so your actual bill may come out a little lower than shown.

Is paying full CPP a bad deal? Not necessarily. Unlike income tax, CPP contributions build your future retirement pension, so a large share of what looks like tax is really forced retirement savings in your name. Still, you must have the cash on hand at filing time, which is exactly why setting money aside from each invoice matters so much for the self-employed.

How much should you set aside, and when do you pay

Because nothing is withheld from your invoices, the discipline of self-employment is saving as you earn. A practical rule for most Canadian freelancers is to move 25% to 30% of every payment into a separate savings account the moment it lands. The calculator gives you a personalised figure by dividing your total bill (income tax plus CPP) by your net income and rounding up, so you set aside a touch more than you strictly need and never scramble in April.

The right percentage climbs with income. On $40,000 of net profit in Ontario your combined income tax and CPP effective rate sits in the low twenties, so 22-25% is plenty. At $80,000 it is roughly 28%, as the worked example shows, and at $120,000 it pushes past 32% because more income falls into the 26% federal band and the 9.15% and 11.16% Ontario bands. Run your own number rather than trusting a single rule of thumb, and re-run it whenever your income changes materially.

Timing matters too. In your first self-employed year you usually pay the whole bill as one lump sum by the filing deadline. The self-employed filing deadline is June 15, 2026 for 2025 returns, but any balance owing is still due by April 30, 2026, so interest starts accruing on April 30 even though your return is not late until later. Do not let the June date fool you into paying late.

Once your net tax owing tops $3,000 (federally) in the current year and one of the two prior years, the CRA switches you to quarterly instalments, due on the 15th of March, June, September and December. The CRA mails instalment reminders with suggested amounts; paying them avoids instalment interest and penalties. Treat instalments as the government formalising the set-aside habit you should already have.

One more threshold to watch: GST/HST. It is separate from everything above, but once your revenue exceeds $30,000 over four consecutive quarters you must register, charge and remit GST/HST. That is sales tax you collect on behalf of the government, not income tax, so keep it in its own account and never spend it. Combined with your income-tax set-aside, a healthy target for many growing freelancers is to reserve roughly a third of gross revenue across both obligations.

Where you live changes the answer, and how to pay less

Two freelancers with identical $90,000 profits can owe meaningfully different amounts purely because of geography. Alberta starts at just 8% and hands out a $22,323 basic personal amount, the most generous in the country. Quebec has the highest bottom rate at 14% and levies QPP at 12.8% rather than 11.9%, though Quebec residents also receive the 16.5% federal abatement that reduces their basic federal tax. Ontario layers a 20% and then 36% surtax on top of provincial tax once it passes $5,710 and $7,307, which quietly raises the top-end burden. The calculator bakes all of these quirks in, so switching the province field is the fastest way to see the geographic spread.

Whatever your province, the levers to lower the bill are the same, and they are more powerful for the self-employed than for employees. First, claim every legitimate expense. Home-office space, a share of internet and phone, accounting software, business insurance, advertising, professional development and the business portion of vehicle costs all reduce net income, and because they cut CPP as well as tax, a deductible dollar is worth more to you than to a salaried worker.

Second, use an RRSP. Self-employment income creates RRSP room (18% of earned income up to the annual limit), and a contribution is a straight deduction from taxable income. Contributing in a high-income year can drop you out of a higher bracket and produce a refund you can reinvest. The FHSA works similarly if you are saving for a first home.

Third, consider whether incorporation makes sense. Below roughly $100,000 of profit the administrative cost and complexity usually outweigh the benefit, and you keep the simplicity of a sole proprietorship. Above that level, retaining earnings inside a corporation taxed at the small-business rate can defer personal tax, but this is a decision to make with an accountant, not a calculator.

Finally, keep clean records all year rather than reconstructing them each spring. Separate business and personal bank accounts, log mileage as you drive, and file receipts monthly. Good records do not just make filing painless; they let you defend every deduction if the CRA asks, and they turn this estimate into an accurate forecast you can actually plan around. Re-run the calculator each quarter as your income firms up, adjust your set-aside percentage, and April stops being stressful.

Frequently asked questions