Summary
If you make $138,888 a year living in the region of Kansas, USA, you will be taxed $41,945. That means that your net pay will be $96,943 per year, or $8,079 per month. Your average tax rate is 30.2% and your marginal tax rate is 37.4%. 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 $37.35, hence, your net pay will only increase by $62.65.
Bonus Example
A $1,000 bonus will generate an extra $627 of net incomes. A $5,000 bonus will generate an extra $3,133 of net incomes.