Sidehub builds free, accurate tax and money calculators for self-employed Canadians — gig workers, freelancers, and small business owners who need clear answers without paying for software or booking an accountant just to ask a simple question.
Why we built this
Most tax calculators are built for people with a single salary and a T4 slip. They fall apart the moment you add side income, self-employment, or a mix of both. Yet millions of Canadians now earn money on the side, and the tax rules for that income — how it stacks on your salary, the self-employed CPP you owe, the GST/HST thresholds — are genuinely confusing and badly served by existing tools. Sidehub exists to close that gap.
Our approach to accuracy
Every calculator on Sidehub uses current-year federal and provincial tax rates, CPP contribution rules, and CRA thresholds, verified against authoritative sources before going live. When a figure can’t be verified, we don’t publish it — we mark it clearly as coming soon rather than risk giving you a wrong number. We’re transparent about what each tool includes and what it simplifies.
What Sidehub is — and isn’t
Sidehub provides estimates to help you understand and plan for your taxes. It is not tax advice, and it is not a substitute for a professional accountant or the CRA. Tax situations vary, and edge cases exist that a general calculator can’t capture. For decisions that matter, always confirm with a qualified professional.
Built in Canada, for Canada
Sidehub is focused exclusively on Canadian tax rules — real federal and provincial brackets, not a generic calculator with a maple leaf added. We’re expanding province by province and adding new tools over time.