Summary
If you make $300,040 a year living in the region of Washington DC, USA, you will be taxed $112,503. That means that your net pay will be $187,537 per year, or $15,628 per month. Your average tax rate is 37.5% and your marginal tax rate is 46.0%. 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 $45.98, hence, your net pay will only increase by $54.02.
Bonus Example
A $1,000 bonus will generate an extra $540 of net incomes. A $5,000 bonus will generate an extra $2,701 of net incomes.