Summary
If you make $138,450 a year living in the region of Washington, USA, you will be taxed $35,155. That means that your net pay will be $103,295 per year, or $8,608 per month. Your average tax rate is 25.4% and your marginal tax rate is 32.1%. 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 $32.09, hence, your net pay will only increase by $67.91.
Bonus Example
A $1,000 bonus will generate an extra $679 of net incomes. A $5,000 bonus will generate an extra $3,396 of net incomes.