Summary
If you make $139,950 a year living in the region of Iowa, USA, you will be taxed $42,606. That means that your net pay will be $97,344 per year, or $8,112 per month. Your average tax rate is 30.4% and your marginal tax rate is 37.2%. 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 $37.21, hence, your net pay will only increase by $62.79.
Bonus Example
A $1,000 bonus will generate an extra $628 of net incomes. A $5,000 bonus will generate an extra $3,140 of net incomes.