Summary
If you make $299,988 a year living in the region of Iowa, USA, you will be taxed $105,559. That means that your net pay will be $194,429 per year, or $16,202 per month. Your average tax rate is 35.2% and your marginal tax rate is 42.8%. 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 $42.80, hence, your net pay will only increase by $57.20.
Bonus Example
A $1,000 bonus will generate an extra $572 of net incomes. A $5,000 bonus will generate an extra $2,860 of net incomes.