Summary
If you make $40,188 a year living in the region of New Jersey, USA, you will be taxed $7,123. That means that your net pay will be $33,065 per year, or $2,755 per month. Your average tax rate is 17.7% and your marginal tax rate is 21.9%. 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 $21.93, hence, your net pay will only increase by $78.07.
Bonus Example
A $1,000 bonus will generate an extra $781 of net incomes. A $5,000 bonus will generate an extra $3,904 of net incomes.