Summary
If you make $99,990 a year living in the region of Northwest Territories, Canada, you will be taxed $28,764. That means that your net pay will be $71,226 per year, or $5,936 per month. Your average tax rate is 28.8% and your marginal tax rate is 37.5%. 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 $37.46, hence, your net pay will only increase by $62.54.
Bonus Example
A $1,000 bonus will generate an extra $625 of net incomes. A $5,000 bonus will generate an extra $3,127 of net incomes.