If you make $55,000 a year living in the region of California, USA, you will be taxed $12,072. That means that your net pay will be $42,928 per year, or $3,577 per month. Your average tax rate is 22.0% and your marginal tax rate is 39.5%. 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 $39.45, hence, your net pay will only increase by $60.55.
A $1,000 bonus will generate an extra $606 of net incomes. A $5,000 bonus will generate an extra $3,028 of net incomes.