Summary
If you make $5,070 a year living in the region of Colorado, USA, you will be taxed $437. That means that your net pay will be $4,633 per year, or $386 per month. Your average tax rate is 8.6% and your marginal tax rate is 12.2%. 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 $12.15, hence, your net pay will only increase by $87.85.
Bonus Example
A $1,000 bonus will generate an extra $879 of net incomes. A $5,000 bonus will generate an extra $4,393 of net incomes.