Sourced from the Canada Tax Tips website.
The tax rate is the MARGINAL rate. Here's an example of how it works (rounding off numbers and brackets)
You make $100,000CAD at the end of the year.
0-32,000 @ 25% = 8,000
32,000-64000 @ 33% = 10,560
64,000-100,000 @ 40% = 14,400
Add them...