Summary
If you make $166,920 a year living in the region of Quebec, Canada, you will be taxed $66,014. That means that your net pay will be $100,906 per year, or $8,409 per month. Your average tax rate is 39.6% and your marginal tax rate is 50.0%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of $100 in your salary will be taxed $49.96, hence, your net pay will only increase by $50.04.
Bonus Example
A $1,000 bonus will generate an extra $500 of net incomes. A $5,000 bonus will generate an extra $2,502 of net incomes.