If you make $55,000 a year living in the region of Colorado, USA, you will be taxed $11,397. That means that your net pay will be $43,604 per year, or $3,634 per month. Your average tax rate is 20.7% and your marginal tax rate is 34.2%. 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 $34.19, hence, your net pay will only increase by $65.81.
A $1,000 bonus will generate an extra $658 of net incomes. A $5,000 bonus will generate an extra $3,291 of net incomes.