Sources we use
We use primary sources only: Canada Revenue Agency rate tables, guides and benefit pages; Revenu Québec; provincial and territorial minimum wage orders and government releases; the Government of Ontario's guide to the Employment Standards Act, 2000; and the City of Toronto's published property tax rates. Accounting blogs, payroll vendors and other calculator sites are never used as sources of fact.
How calculators are checked
Every calculator uses published, standard formulas. The code is covered by automated tests that check known answers (for example, the Revenu Québec $100 receipt, the CRA small supplier examples, the CRA benefit chart for July 2026 to June 2027, and the Ontario ESA severance and overtime examples are recomputed in our automated tests). We show the formula next to each tool so anyone can verify the result by hand.
What we will not publish
- Affiliate links, paid rankings of accountants, payroll software or lenders, or lead forms.
- Rates copied from other calculator sites or rates without a date and an official source.
- Claims we cannot support with a source.
Updates and corrections
Each page shows the date it was last updated. Sales tax rates change by provincial budget; minimum wages change on fixed dates (April 1, May 1, June 1, September 1 and October 1 depending on the province); the CRA resets benefit amounts every July; Toronto sets its tax rates each spring. We check these dates, re-run the tests, and change page dates only when content changes. If you find an error, tell us through the contact page and we will review it and correct it.