Summary
If you make $138,450 a year living in the region of Delaware, USA, you will be taxed $42,454. That means that your net pay will be $95,996 per year, or $8,000 per month. Your average tax rate is 30.7% and your marginal tax rate is 38.3%. 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 $38.25, hence, your net pay will only increase by $61.75.
Bonus Example
A $1,000 bonus will generate an extra $618 of net incomes. A $5,000 bonus will generate an extra $3,088 of net incomes.