Summary
If you make $99,990 a year living in the region of New York, USA, you will be taxed $28,120. That means that your net pay will be $71,870 per year, or $5,989 per month. Your average tax rate is 28.1% and your marginal tax rate is 37.9%. 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 $37.90, hence, your net pay will only increase by $62.10.
Bonus Example
A $1,000 bonus will generate an extra $621 of net incomes. A $5,000 bonus will generate an extra $3,105 of net incomes.