T2125, HST threshold, deductible expenses, and your first self-employment tax return
Canada's gig and side hustle economy has exploded. Whether you're driving for DoorDash, freelancing as a graphic designer, selling crafts on Etsy, tutoring online, or dog walking on Rover — if you're earning money outside of traditional employment, you need to understand how Canadian tax law treats that income.
Good news: self-employment income in Canada is taxed on your net profit, not gross revenue. Legitimate business expenses significantly reduce your taxable income. This guide covers everything a first-time Canadian side hustler needs to know.
Any income earned from self-employment, freelancing, gig work, or a side business must be reported on your annual T1 tax return. This income is reported on Form T2125 (Statement of Business or Professional Activities). Unlike employment income (which has taxes withheld at source by your employer), side hustle income arrives in full and you owe taxes on your net profit when you file.
You are not required to register for HST/GST until your taxable revenues in a single calendar year (or any four consecutive calendar quarters) exceed $30,000. Below this threshold, you are a "small supplier" and don't need to collect HST.
Once you cross $30,000 in revenues in a calendar quarter plus the previous three quarters, you must register for HST within 29 days and start collecting it on your services. You then remit HST to the CRA quarterly or annually.
Many side hustlers voluntarily register for HST below the threshold to claim input tax credits (ITCs) — recouping HST paid on business expenses like equipment, software, and subscriptions.
The T2125 form captures:
Your net self-employment income (Line 13500 on your T1 return) is then subject to both income tax and the self-employed CPP contribution — you pay both the employee (5.95%) and employer (5.95%) share, totalling 11.9% of net self-employment income above $3,500, up to the YMPE.
Freelance/online work: Computer equipment (pro-rated if personal use), software subscriptions (Adobe, Microsoft 365, design tools), internet (business use percentage), phone (business use percentage), home office (detailed below)
Delivery/rideshare: Vehicle expenses (gas, insurance, maintenance, depreciation), pro-rated to business km / total km driven. Keep a mileage log — the CRA can ask for it.
Reselling/Etsy/craft: Cost of goods sold (materials, inventory), packaging, shipping, platform fees (Etsy listing fees, PayPal fees), photo equipment for product photography
Tutoring/teaching: Course materials, books, supplies, advertising (Google Ads, social media promotion), any professional certifications required
If you use a portion of your home exclusively and regularly for your side business, you can deduct a proportionate share of home expenses. Calculate the percentage as: (area used for business) / (total home area). That percentage of rent, utilities, internet, and home insurance can be deducted. Note: you cannot create or increase a business loss using the home office deduction — it can only reduce business income to zero.
If you owe more than $3,000 in net tax (federal) in the current year and in at least one of the two preceding years, the CRA will require you to make quarterly tax instalments — prepaying your taxes throughout the year rather than in one lump sum at filing time. Instalments are due March 15, June 15, September 15, and December 15. Failure to pay instalments when required results in instalment interest charges.
The CRA requires you to keep business records for 6 years from the end of the tax year they relate to. Keep:
Use a dedicated account (KOHO or a business bank account) for side hustle income and expenses to make bookkeeping simpler at tax time.
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