Self-Employed Taxes in Canada: What Freelancers Owe

The Big Picture: 3 Tax Obligations

As a self-employed Canadian, you face three separate tax obligations that employed workers either don't have or have handled automatically by their employer:

1. Federal and provincial income tax — tax on your net self-employment income, paid in quarterly instalments throughout the year and settled with your annual T1 return
2. Canada Pension Plan (CPP) contributions — self-employed workers pay both the employee and employer portions, effectively doubling the CPP rate compared to employment
3. GST/HST remittances — if you are GST/HST-registered, the tax you collect from clients must be remitted to the CRA on a regular schedule

Each of these is calculated and remitted separately, on different schedules, to different CRA accounts. Employees have their employer handle income tax withholding and the employer's share of CPP automatically. Self-employed workers do all of it themselves. This is not complicated — but it requires awareness and planning that new freelancers often lack in their first year.

Income Tax: No Employer Withholding

As an employee, your employer deducts income tax from every paycheque based on an estimate of your annual income. You get a T4 at year-end, file your return, and receive a small refund or pay a small amount. The system is mostly automatic.

As a self-employed worker, there is no withholding. Your clients pay your full invoice amount — including your profit, which will eventually be taxed. You are responsible for calculating, setting aside, and remitting your income tax yourself.

How Self-Employment Income Is Taxed

Your taxable self-employment income is your gross revenues minus eligible business expenses (also called "net self-employment income"). This net amount is reported on your T1 personal income tax return each year. It is added to any other income you have (employment income, investment income, rental income) to determine your total taxable income.

Federal marginal income tax rates for 2026 (approximate):

Provincial income tax is added on top of the federal rate. Combined federal + provincial marginal rates in Ontario, for example, reach approximately 53.53% at the top bracket. Most freelancers earning $60,000–$100,000 in net self-employment income face a combined marginal rate of approximately 43–47% in Ontario, including CPP contributions.

This means for every dollar you earn above a certain threshold, nearly half goes to taxes and CPP. Understanding your marginal rate helps you price your services appropriately and plan your tax savings accurately.

Tax Instalments: Paying Income Tax in Advance

Because no employer is withholding income tax from your freelance income, the CRA requires most self-employed Canadians to pay income tax in advance through quarterly instalments. This prevents a situation where you owe a massive lump sum at tax time and cannot pay it.

When Are Instalments Required?

You are required to make quarterly income tax instalments if your net tax owing (federal tax plus provincial tax, minus any amounts withheld at source) is more than $3,000 in either the current tax year or either of the two preceding years. Most full-time freelancers hit this threshold.

Instalment Due Dates

The CRA mails instalment reminders in February and August with suggested instalment amounts. You are not required to use the CRA's suggested amount — you can calculate your own based on your actual year-to-date income. If you estimate higher earnings, pay more to avoid a large balance owing at filing. If earnings are lower, pay less (and understand you may owe interest if you underpay).

How to Calculate Your Instalment Amount

There are three CRA-approved methods:

1. Prior-year method: pay the same total tax you owed in the previous year, divided into four equal payments. Safest if your income is similar year over year.
2. Current-year method: estimate your current year's tax liability and pay one-quarter each quarter. Most accurate if your income has changed significantly.
3. No-calculation method: use the amounts from the CRA's instalment reminders exactly. Based on the second-prior year's tax bill for Q1 and Q2, then adjusted in Q3 and Q4.

CPP Contributions: Double the Rate

The Canada Pension Plan is Canada's mandatory retirement savings program. As an employee, you pay half the CPP rate and your employer pays the other half. As a self-employed worker, you pay both halves — the full combined rate applies to your net self-employment income. This is one of the most surprising tax realities for new freelancers.

CPP Rates for Self-Employed in 2026

For 2026, the combined CPP contribution rate for self-employed individuals is approximately 11.9% of net self-employment income between the basic exemption ($3,500) and the Year's Maximum Pensionable Earnings (YMPE, approximately $68,500 for 2026). The maximum CPP contribution for a self-employed person in 2026 is approximately $7,735.

Example: A freelancer with $70,000 in net self-employment income owes approximately ($68,500 − $3,500) × 11.9% = $7,735 in CPP contributions for 2026. This is in addition to income tax.

CPP Enhancement (CPP2)

Canada began phasing in a CPP enhancement in 2019. The enhanced CPP (sometimes called CPP2) adds a second tier above the YMPE up to a second earnings ceiling. The CPP2 rate for self-employed workers is approximately 8% on income between the YMPE (~$68,500) and the Year's Additional Maximum Pensionable Earnings (~$73,200). The maximum CPP2 contribution is approximately $376 for 2026.

The Tax Treatment of CPP on Your T1

Here is a nuance that many freelancers miss: your CPP contributions are split on your T1 return. The "employee" portion (half of your total CPP) is claimed as a non-refundable tax credit on line 31000. The "employer" portion (the other half) is claimed as a deduction from income on line 22200. The deduction reduces your taxable income; the credit directly reduces your tax payable. Both benefits reduce your total tax bill, but through different mechanisms.

Business Expenses: What You Can Deduct

One of the significant financial advantages of self-employment is the ability to deduct legitimate business expenses from your revenue before calculating taxable income. Every dollar you deduct in business expenses reduces your net self-employment income — which reduces both your income tax and your CPP contributions.

Common deductible business expenses for Canadian freelancers:

The Home Office Deduction

If you work from home — as most freelancers do — you can deduct a portion of your home expenses as a business expense. The CRA allows this under two conditions:

1. Your home office is your principal place of business, OR
2. You use the space exclusively for business and meet clients or customers there regularly

Most freelancers meet condition 1 — if you work from home full time, your home is your principal place of business by definition.

The Home Office Calculation Formula

Calculate the percentage of your home used for business:

Business-use percentage = (Area of workspace in sq ft) ÷ (Total floor area of home in sq ft)

Example: Your home office is a dedicated room of 120 sq ft in a 1,200 sq ft home = 10% business use.

Apply this percentage to your eligible home expenses:

• Rent (if renting) — 10% deductible
• Utilities (heat, hydro, water) — 10% deductible
• Home insurance — 10% deductible
• Internet (if allocated to home costs rather than direct business expense) — 10% deductible
• Maintenance and cleaning — 10% deductible (proportional to office area)

Mortgage principal and property taxes are generally not deductible on your T1 return as a self-employed individual (though mortgage interest is). Consult your accountant on this, as the rules have nuances for home ownership versus rental situations.

GST/HST Remittance Reminder

GST/HST is often confused with income tax by new freelancers. They are entirely separate systems. The GST/HST you collect from clients is never your income — it is a tax held in trust for the government. It does not appear in your taxable income calculation. You collect it, hold it, and remit it to the CRA on your GST/HST filing schedule.

The most important reminder: the money you collect as GST/HST must never be spent on personal expenses or mixed with your business operating funds. It belongs to the CRA from the moment a client pays your invoice. Keep it in a separate account until remittance time.

For a full explanation of registration thresholds, filing frequencies, and how to calculate your remittance, see our dedicated guide: GST and HST Rules for Canadian Freelancers.

Setting Aside Money Throughout the Year

The single most practical piece of advice for new self-employed Canadians: set aside a fixed percentage of every payment you receive into a dedicated savings account designated as your tax reserve. Do not wait until tax season to figure out what you owe.

The 25–30% Rule

A conservative rule of thumb for Canadian freelancers earning $50,000–$100,000 in gross self-employment income in Ontario:

• Set aside 25% of gross income if you have significant deductible expenses
• Set aside 30% of gross income if your expense deductions are minimal
• Set aside 35% if you are in the upper income brackets (above $100,000 net)

This percentage is for income tax and CPP contributions only. GST/HST is collected on top of your fees and should be kept entirely separate — 100% of GST/HST collected goes into the tax account, never to be spent on business expenses.

The Two-Account System

Open two additional accounts beyond your main operating account:

1. Tax Reserve Account: Every client payment, transfer 25–30% here immediately. Use only to pay income tax and CPP instalments.
2. GST/HST Account: Every payment that includes GST/HST, transfer the exact GST/HST amount here immediately. Remit quarterly or annually as required.

With these two accounts, your operating account contains only money that is actually yours. You will never accidentally spend tax money that belongs to the CRA.

Key Tax Deadlines for Self-Employed Canadians

When to Hire an Accountant vs DIY

Many freelancers handle their own taxes in year one using tax software like TurboTax Self-Employed or Wealthsimple Tax. This is viable for straightforward situations — one primary income source, standard deductions, no employees, no incorporation. Here are signs you should hire a professional:

• You incorporated or are considering it — corporate taxes and personal taxes become entirely separate returns with different rules and deadlines
• Your revenues exceed $100,000 — at this level, the tax optimization strategies available to an accountant (income splitting, holding companies, retirement account strategies) typically save more than the accountant's fee
• You have employees or subcontractors — payroll remittances, T4 preparation, and contractor T4A forms add complexity
• You received a CRA letter or audit notice — always engage a professional when CRA is asking questions
• You have rental income, investment income, or capital gains alongside self-employment income
• You made a significant capital purchase — proper CCA (Capital Cost Allowance) treatment can have multi-year tax implications

A good accountant who specializes in self-employed Canadians typically costs $300–$800/year for a sole proprietor T1 return with T2125 (business income statement). For most freelancers earning $60,000–$100,000, the combination of tax savings, stress reduction, and peace of mind easily justifies this cost.