Summary
If you make $66,886 a year living in the region of Washington, USA, you will be taxed $12,894. That means that your net pay will be $53,992 per year, or $4,499 per month. Your average tax rate is 19.3% and your marginal tax rate is 30.1%. 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 $30.09, hence, your net pay will only increase by $69.91.
Bonus Example
A $1,000 bonus will generate an extra $699 of net incomes. A $5,000 bonus will generate an extra $3,496 of net incomes.