Summary
If you make $11,960 a year living in the region of Iowa, USA, you will be taxed $1,126. That means that your net pay will be $10,834 per year, or $903 per month. Your average tax rate is 9.4% and your marginal tax rate is 12.1%. 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 $12.08, hence, your net pay will only increase by $87.92.
Bonus Example
A $1,000 bonus will generate an extra $879 of net incomes. A $5,000 bonus will generate an extra $4,396 of net incomes.