Summary
If you make $99,979 a year living in the region of Quebec, Canada, you will be taxed $34,224. That means that your net pay will be $65,755 per year, or $5,480 per month. Your average tax rate is 34.2% and your marginal tax rate is 44.6%. 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 $44.60, hence, your net pay will only increase by $55.40.
Bonus Example
A $1,000 bonus will generate an extra $554 of net incomes. A $5,000 bonus will generate an extra $2,770 of net incomes.