Summary
If you make $18,750 a year living in the region of Iowa, USA, you will be taxed $2,488. That means that your net pay will be $16,262 per year, or $1,355 per month. Your average tax rate is 13.3% and your marginal tax rate is 22.1%. 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 $22.11, hence, your net pay will only increase by $77.89.
Bonus Example
A $1,000 bonus will generate an extra $779 of net incomes. A $5,000 bonus will generate an extra $3,895 of net incomes.