Tax rates. Federal and provincial income tax use 2026 marginal brackets and the basic personal amount. CPP / CPP2 (5.95% to the YMPE) and EI (1.63% to the maximum) use 2026 rates.
Where it goes. Federal shares use the Government of Canada's actual 2024–25 spending (Annual Financial Report). Provincial shares use each province's real 2024–25 spending by category (FAO / Statistics Canada GFS).
Simplifications. We assume a single person claiming only the basic personal amount, and omit most other credits. Quebec uses QPP / QPIP / the federal abatement, approximated here. Treat results as a clear estimate, not tax advice.
Hours of your life. Based on your stated hours/week × 52, converted to an hourly figure, then each tax dollar expressed as hours worked.