Summary
If you make $187,138 a year living in the region of Delaware, USA, you will be taxed $58,988. That means that your net pay will be $128,150 per year, or $10,679 per month. Your average tax rate is 31.5% and your marginal tax rate is 37.7%. 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 $37.65, hence, your net pay will only increase by $62.35.
Bonus Example
A $1,000 bonus will generate an extra $624 of net incomes. A $5,000 bonus will generate an extra $3,118 of net incomes.