Summary
If you make $156,000 a year living in the region of Iowa, USA, you will be taxed $48,168. That means that your net pay will be $107,832 per year, or $8,986 per month. Your average tax rate is 30.9% and your marginal tax rate is 31.9%. 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 $31.93, hence, your net pay will only increase by $68.07.
Bonus Example
A $1,000 bonus will generate an extra $681 of net incomes. A $5,000 bonus will generate an extra $3,404 of net incomes.