Summary
If you make $18,924 a year living in the region of Iowa, USA, you will be taxed $2,526. That means that your net pay will be $16,398 per year, or $1,366 per month. Your average tax rate is 13.4% and your marginal tax rate is 22.3%. 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 $22.26, hence, your net pay will only increase by $77.74.
Bonus Example
A $1,000 bonus will generate an extra $777 of net incomes. A $5,000 bonus will generate an extra $3,887 of net incomes.