What This Calculator Does
The Ontario Self-Employed Tax Calculator estimates your total annual tax and CPP obligations as a self-employed Ontario resident for the 2026 tax year. It covers federal income tax, Ontario provincial tax, Ontario Health Premium, Ontario surtax, CPP1, and CPP2 — and gives you a monthly set-aside number so you're not caught off guard at filing time.
Who It's For
- Sole proprietors filing a T2125
- Freelancers and independent contractors
- Gig workers (rideshare, delivery, platform work)
- Anyone with unincorporated self-employment income in Ontario
If you're incorporated, this isn't the right tool — corporate tax works differently.
How It Works
You enter your gross self-employment revenue, deductible business expenses, and optionally any T4 employment income or RRSP contributions. The calculator figures out your CPP on net self-employment income (not gross), applies the 2026 federal and Ontario brackets, adds surtax and the Ontario Health Premium where applicable, and shows you what you'll actually owe — and what to set aside each month.
All rates come from official CRA publications for the 2026 tax year.
Important Note
This is an estimate, not a tax return. The CPP deduction shown is an approximation — exact CPP treatment requires Schedule 8 at filing and may differ. This tool doesn't account for every credit, deduction, or individual circumstance. Talk to a CPA or tax professional for advice specific to your situation.
Part of the Calc-HQ.ca Network
This calculator is part of the Calc-HQ.ca network of Canadian tax and payroll calculators. All calculators in the network use CRA-sourced rates and are updated annually for each tax year.