Side Hustle Taxes in Canada: What Gig Workers and Freelancers Actually Owe
By Jordan Ellis · Published
Quick Answer
Side hustle income in Canada is self-employment income, taxable at your marginal rate on top of your job — plus both halves of CPP (11.9% up to the $74,600 ceiling, 2026 figures). A $10,000 side profit at a 30% marginal rate costs roughly $3,000 in income tax plus up to $1,190 in extra CPP, so set aside 30-40% of every side-hustle dollar. Deductible expenses (supplies, software, home office share, vehicle costs, platform fees) reduce the taxable profit, and you must register for GST/HST once worldwide revenue passes $30,000 in any 12-month period. Report it all on Form T2125.
The first year of side income produces the same April horror story every time: nobody withheld anything. Here’s the full picture before CRA sends the invoice — price your own scenario with the income tax calculator.
The real tax on side income
Side profit stacks on top of your salary at your marginal rate — not your average rate. The stack:
| Component | Rate |
|---|---|
| Income tax (marginal bracket, fed + prov) | 25–40%+ |
| Self-employment CPP (both halves) | up to 11.9% |
| Set aside | 30–40% of profit |
$10,000 of side profit at a 30% bracket: ~$3,000 tax + up to $1,190 CPP. Plan for it with every payment, not every April — the bonus withholding guide covers why unwithheld income always feels worse than it is, and the fix is the same: separate account, automatic percentage.
The deductions that shrink the bill
Everything reasonable spent to earn the income, on Form T2125:
- Platform and payment fees — Uber’s cut, Etsy fees, Stripe’s 2.9%
- Supplies, materials, software, advertising
- Home office — rent/utilities/internet share by square footage of dedicated space
- Vehicle — business-use % of fuel, insurance, maintenance (mileage log required)
- Meals — 50% of business-purpose ones
- Laptop/equipment — capital cost allowance over years, not one deduction
Every $1,000 of legitimate deductions saves $300–420 at typical side-hustle brackets. The incorporation guide covers when the hustle is big enough to incorporate — usually well past $60k of profit you don’t need to live on.
The $30,000 GST/HST line
Cross $30,000 in worldwide side revenue in any single quarter or rolling four quarters and GST/HST registration becomes mandatory — you charge it, collect it, and remit it. Two things people miss: it applies to revenue, not profit; and registering voluntarily below the threshold often makes sense because input tax credits refund the HST on your business purchases.
The quarterly instalment trap
Once you owe more than $3,000 in tax ($1,800 in Quebec) in a year, CRA starts expecting quarterly instalments the following year. Ignore the instalment letter and interest accrues. If your hustle is recurring, just pay the instalments — or increase withholding at your day job with a TD1 adjustment to cover the side income automatically.
The five-minute setup that prevents all of it
Separate bank account for the hustle → 35% of every payment swept to a tax sub-account → a simple spreadsheet or app logging income and expenses monthly → mileage log if you drive → TFSA or RRSP contributions with what’s left after the tax slice. Boring, and it turns tax season into a shrug. Run the after-tax reality of the extra income through the salary calculator before you quit anything for it.
Official sources
Rules and dollar limits change. Confirm current amounts with the official pages below before you act · Last reviewed .
- Report business income and expenses (Form T2125) (Canada Revenue Agency)
- Tax rates and income brackets for the current year (Canada Revenue Agency)