Summary
If you make $19,920 a year living in the region of Washington, USA, you will be taxed $2,308. That means that your net pay will be $17,612 per year, or $1,468 per month. Your average tax rate is 11.6% and your marginal tax rate is 18.2%. 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 $18.23, hence, your net pay will only increase by $81.77.
Bonus Example
A $1,000 bonus will generate an extra $818 of net incomes. A $5,000 bonus will generate an extra $4,089 of net incomes.