Side Hustles & Freelancing: The Tax Stuff Nobody Tells You

The moment you earn money outside of a traditional employer-employee relationship — whether it's freelancing, rideshare driving, selling handmade goods, tutoring, consulting, or content creation — the CRA considers you self-employed. It doesn't matter if it's $500 or $50,000. It doesn't matter if it's your "main thing" or a weekend side project.

Self-employment income is treated very differently from employment income. Your employer doesn't deduct taxes for you. Nobody withholds CPP. You're responsible for tracking every dollar earned, every expense, and remitting your own taxes. If you don't, the CRA will eventually catch up — and the penalties are steep.

Most side hustlers and new freelancers operate as sole proprietors. It's the default — you don't need to register anything with the government to start (except in Quebec, where you must register with the Registraire des entreprises). You simply report your business income and expenses on your personal tax return using form T2125.

Incorporation creates a separate legal entity (a corporation) that earns the income, pays its own taxes, and can pay you a salary or dividends. It's more complex and costs more to set up and maintain, but offers advantages once your side hustle grows.

Some provinces require you to register a business name if you operate under anything other than your legal name. In Ontario, this costs about $60 online through ServiceOntario. In BC, it's done through BC Registry Services for about $40. Check your province's requirements.

If your total revenue (not profit — revenue) from taxable supplies exceeds $30,000 over any four consecutive calendar quarters, you are legally required to register for a GST/HST account and start charging GST/HST on your services. This is known as the "small supplier threshold."

Once registered, you charge GST/HST on your invoices (5% GST in Alberta, 13% HST in Ontario, 15% HST in the Atlantic provinces, etc.), collect it from clients, and remit it to the CRA — usually annually for small businesses, but quarterly or monthly as you grow.

• You can register voluntarily before hitting $30,000 — this lets you claim Input Tax Credits (ITCs) on business purchases, effectively getting the GST/HST back on your expenses.
• Register online through CRA Business Registration Online (BRO) or by calling 1-800-959-5525.
• Choose your reporting period: annual (simplest for most side hustlers), quarterly, or monthly.
• The Quick Method of accounting simplifies remittances — you remit a flat percentage of revenue instead of tracking GST/HST on every expense. Great for service-based businesses with few expenses.

This is non-negotiable: you must track every dollar of business income and every business expense. The CRA requires you to keep records for at least six years. If you're audited and can't produce receipts or records, the CRA can disallow your deductions entirely — meaning you'll owe tax on your gross revenue, not your net profit.

The single best thing you can do for your side hustle finances is open a separate bank account. It doesn't need to be a "business" account (those often have higher fees) — a free personal chequing account used exclusively for business works fine. This keeps business income and expenses cleanly separated from personal spending.

Common Deductible Expenses

• Home office — percentage of rent/mortgage interest, utilities, property tax, and internet based on the square footage of your dedicated workspace relative to your total home. Must be your principal place of business or used exclusively and regularly for business.
• Phone — the business-use percentage of your monthly phone bill. If you use your phone 40% for business, you can deduct 40% of the cost.
• Equipment & supplies — computer, monitor, desk, printer, software, office supplies. Items over $500 may need to be depreciated (Capital Cost Allowance) rather than deducted in full.
• Vehicle expenses — gas, insurance, maintenance, parking, and depreciation for the business-use percentage of your vehicle. Keep a mileage log or use an app like MileIQ.
• Professional development — courses, certifications, books, conferences, and workshops directly related to your business.
• Software subscriptions — Adobe Creative Suite, Canva, accounting software, project management tools, website hosting.
• Professional fees — accountant, lawyer, business coach, bookkeeper.
• Marketing & advertising — website costs, business cards, online ads, social media promotion.

When you're employed, your employer deducts income tax from every paycheque. When you're self-employed, nobody does this for you. If your net tax owing (after deductions and credits) exceeds $3,000 in the current year AND in either of the two previous years, the CRA requires you to pay quarterly tax installments.

Installment due dates are March 15, June 15, September 15, and December 15. The CRA will send you an installment reminder (form INNS3) with suggested amounts, calculated using one of three methods:

1. 1No-calculation option — pay the amount the CRA tells you on the installment reminder. Simplest, but may not reflect your current income.
2. 2Prior-year option — base installments on last year's tax owing, divided into four equal payments.
3. 3Current-year option — estimate your current year's income and calculate installments accordingly. Most accurate but requires good bookkeeping.

Here's the part that catches almost every new freelancer off guard: as a self-employed person, you pay both the employee AND employer portions of Canada Pension Plan (CPP) contributions. In 2026, that means:

• CPP1 (base): 11.9% on net self-employment earnings between $3,500 and $73,200 (the Year's Maximum Pensionable Earnings for 2026).
• CPP2 (enhanced): An additional 8% on earnings between $73,200 and $81,200 (the Year's Additional Maximum Pensionable Earnings for 2026).
• Maximum CPP1 contribution for self-employed in 2026: approximately $8,294.
• Maximum CPP2 contribution for self-employed in 2026: approximately $640.

When you're employed, your employer pays half of CPP1 and CPP2. When you're self-employed, you pay the full amount yourself. On $60,000 of net self-employment income, that's roughly $6,724 in CPP alone — on top of income tax.

Self-employed individuals do not pay Employment Insurance (EI) premiums unless they voluntarily opt in to the EI program for access to special benefits (maternity, parental, sickness, compassionate care). You can register for EI special benefits through Service Canada if you want this coverage.

Self-employed individuals have until June 15 to file their tax return — but any taxes owing are still due April 30. Interest starts accruing on May 1 on any unpaid balance, regardless of the June 15 filing deadline. This trips up a lot of people.

You'll report your business income and expenses on form T2125 (Statement of Business or Professional Activities), which gets included with your T1 General personal tax return. If you have both employment income (T4) and self-employment income, they're combined on the same return.

Common Mistakes to Avoid

• Mixing personal and business expenses — using your business account for personal purchases makes it nearly impossible to defend deductions in an audit.
• Not keeping receipts — the CRA can reassess your return up to 3 years back (6 years in some cases). Digital copies (photos, scans) are acceptable.
• Forgetting to charge GST/HST — if you're registered (or should be), you must charge it. Failing to do so means you owe it out of pocket.
• Over-claiming the home office deduction — the CRA scrutinizes this closely. Your workspace must be used exclusively and regularly for business, or be your principal place of business.
• Not reporting all income — platforms like Uber, DoorDash, Etsy, and Airbnb all report to the CRA. E-transfers are traceable. Report everything.
• Claiming meals at 100% — business meals and entertainment are only 50% deductible in Canada.

One of the biggest mistakes new freelancers make is setting rates based on what they earned per hour at a job. Employment comes with employer-paid CPP, EI, benefits, vacation pay, sick days, equipment, and office space. As a freelancer, you pay for all of that yourself. Your hourly rate needs to be significantly higher than an employee equivalent.

The Freelance Rate Formula

1. 1Start with your desired annual take-home pay (e.g., $60,000).
2. 2Add taxes (~30% effective rate for most side hustlers): $60,000 / 0.70 = $85,714.
3. 3Add CPP (~11.9% on net earnings): roughly $9,750 more.
4. 4Add business expenses (software, equipment, insurance, etc.): estimate $3,000–$5,000/year.
5. 5Add vacation and sick time: if you want 4 weeks off, you only have 48 billable weeks.
6. 6Total needed: approximately $100,000 in gross revenue.
7. 7Divide by realistic billable hours (not 40/week — account for admin, marketing, invoicing): ~1,200–1,500 hours/year.
8. 8Result: $67–$83/hour to take home $60,000.

The general multiplier rule: take the hourly rate you'd earn as an employee doing the same work and multiply by 1.5x to 2x. If the equivalent job pays $35/hour, your freelance rate should be $53–$70/hour minimum.

If you have a full-time job and earn self-employment income on the side, both sources of income are combined on your personal tax return. Your employment income gets taxed first (your employer deducts tax based on your salary alone), and your self-employment income sits on top — meaning it gets taxed at your highest marginal rate.

This is why many people with side hustles get hit with a large tax bill in April. Your employer doesn't know about your side income, so they're not deducting enough tax. On a $60,000 salary with $20,000 in side hustle income, you could easily owe $5,000–$8,000+ at tax time.

How to Avoid the Tax Surprise

• File form T1213 (Request to Reduce Tax Deductions at Source) with the CRA to have your employer withhold additional tax from each paycheque. This spreads the tax burden evenly across the year instead of one big hit in April.
• Make quarterly installment payments on your side hustle income (see the installments section above).
• Set aside 30–40% of every side hustle payment in a separate savings account dedicated to taxes. The percentage is higher here because your side income is taxed at your top marginal rate.
• Track all business expenses diligently — deductions reduce your taxable self-employment income and lower your overall bill.

Also consider the impact on government benefits. Higher total income may reduce or eliminate income-tested benefits like the GST/HST credit, Canada Child Benefit, or Ontario Trillium Benefit. Factor this into your side hustle math — the true marginal tax rate on side income can be higher than you expect when benefit clawbacks are included.