Summary
If you make $99,999 a year living in the region of Ontario, Canada, you will be taxed $29,985. That means that your net pay will be $70,014 per year, or $5,834 per month. Your average tax rate is 30.0% and your marginal tax rate is 43.2%. 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 $43.15, hence, your net pay will only increase by $56.85.
Bonus Example
A $1,000 bonus will generate an extra $569 of net incomes. A $5,000 bonus will generate an extra $2,843 of net incomes.