If you make $120,000 a year living in the region of New Jersey, USA, you will be taxed $34,313. That means that your net pay will be $85,687 per year, or $7,141 per month. Your average tax rate is 28.6% and your marginal tax rate is 38.5%. 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 $38.50, hence, your net pay will only increase by $61.50.
A $1,000 bonus will generate an extra $615 of net incomes. A $5,000 bonus will generate an extra $3,075 of net incomes.