Summary
If you make $12,740 a year living in the region of Kansas, USA, you will be taxed $1,265. That means that your net pay will be $11,475 per year, or $956 per month. Your average tax rate is 9.9% and your marginal tax rate is 11.3%. 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 $11.25, hence, your net pay will only increase by $88.75.
Bonus Example
A $1,000 bonus will generate an extra $888 of net incomes. A $5,000 bonus will generate an extra $4,438 of net incomes.