If you make $55,000 a year living in the region of Washington, USA, you will be taxed $9,509. That means that your net pay will be $45,491 per year, or $3,791 per month. Your average tax rate is 17.3% and your marginal tax rate is 29.9%. 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 $29.90, hence, your net pay will only increase by $70.10.
A $1,000 bonus will generate an extra $701 of net incomes. A $5,000 bonus will generate an extra $3,505 of net incomes.