Brackets are bands, not cliffs
A common misconception: earning $1 above a bracket threshold “moves you into a higher tax bracket” and taxes everything at the new rate. It doesn’t — Canada uses a graduated system where each layer of income is taxed at its own rate. The first $57,375 you earn is taxed federally at 15 % regardless of how much you make on top.
Provincial differences are big
The same $100k of income produces a wildly different tax bill depending on where you live. Alberta charges 8 % at the bottom; Quebec charges 14 %. Quebec’s top combined rate (federal + provincial) at the highest bracket is ~53 %; Alberta’s top is ~48 %. The Territories use lower headline rates but most goods are imported at high cost so the comparison isn’t apples to apples.
What this calculator doesn’t do
It returns only the marginal rate, not your actual tax bill. For total tax payable, RRSP-deduction value, CPP/EI deductions and net take-home, use the income-after-tax calculator. For Quebec specifically the federal abatement (~16.5 % reduction in federal tax payable) is not displayed here — Quebec residents see a higher federal number in this calculator than they actually pay.