Summary
If you make $18,720 a year living in the region of Washington DC, USA, you will be taxed $2,932. That means that your net pay will be $15,788 per year, or $1,316 per month. Your average tax rate is 15.7% and your marginal tax rate is 23.7%. 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 $23.65, hence, your net pay will only increase by $76.35.
Bonus Example
A $1,000 bonus will generate an extra $764 of net incomes. A $5,000 bonus will generate an extra $3,818 of net incomes.