Summary
If you make $64,319 a year living in the region of Iowa, USA, you will be taxed $14,709. That means that your net pay will be $49,610 per year, or $4,134 per month. Your average tax rate is 22.9% and your marginal tax rate is 35.3%. 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 $35.34, hence, your net pay will only increase by $64.66.
Bonus Example
A $1,000 bonus will generate an extra $647 of net incomes. A $5,000 bonus will generate an extra $3,233 of net incomes.