Summary
If you make $40,800 a year living in the region of Washington, USA, you will be taxed $6,437. That means that your net pay will be $34,363 per year, or $2,864 per month. Your average tax rate is 15.8% and your marginal tax rate is 20.1%. 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 $20.09, hence, your net pay will only increase by $79.91.
Bonus Example
A $1,000 bonus will generate an extra $799 of net incomes. A $5,000 bonus will generate an extra $3,996 of net incomes.