Summary
If you make $99,351 a year living in the region of Iowa, USA, you will be taxed $27,173. That means that your net pay will be $72,178 per year, or $6,015 per month. Your average tax rate is 27.4% and your marginal tax rate is 36.3%. 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 $36.30, hence, your net pay will only increase by $63.70.
Bonus Example
A $1,000 bonus will generate an extra $637 of net incomes. A $5,000 bonus will generate an extra $3,185 of net incomes.