Summary
If you make $5,980 a year living in the region of Iowa, USA, you will be taxed $482. That means that your net pay will be $5,498 per year, or $458 per month. Your average tax rate is 8.1% and your marginal tax rate is 9.7%. 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 $9.68, hence, your net pay will only increase by $90.32.
Bonus Example
A $1,000 bonus will generate an extra $903 of net incomes. A $5,000 bonus will generate an extra $4,516 of net incomes.