Summary
If you make $54,919 a year living in the region of Washington DC, USA, you will be taxed $12,229. That means that your net pay will be $42,690 per year, or $3,558 per month. Your average tax rate is 22.3% and your marginal tax rate is 28.5%. 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 $28.50, hence, your net pay will only increase by $71.50.
Bonus Example
A $1,000 bonus will generate an extra $715 of net incomes. A $5,000 bonus will generate an extra $3,575 of net incomes.