About these calculators

This is an independent site. It is not affiliated with the Canada Revenue Agency, Revenu Québec or any government.

We build one thing: calculators that give the right number with as few questions as possible. Every rate comes from an official source, and every calculator is tested against the government's own calculators before it goes live.

How a calculator is made

1. Rates and thresholds are taken from official publications, each with its source and the date it was read.
2. The calculation is checked against official calculators (CRA, Revenu Québec) using example households. A failing check blocks publication.
3. A person reviews the formulas and sources before a calculator is published.
4. Sources are re-read on a fixed calendar (1 January, 1 July, budget days) and the calculators are updated.

Details: method and sources.

Limits

The results are estimates for information only, not tax or financial advice. Your actual tax and benefits depend on your full situation.