Summary
If you make $4,472 a year living in the region of Kansas, USA, you will be taxed $373. That means that your net pay will be $4,099 per year, or $342 per month. Your average tax rate is 8.3% and your marginal tax rate is 10.8%. 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 $10.75, hence, your net pay will only increase by $89.25.
Bonus Example
A $1,000 bonus will generate an extra $893 of net incomes. A $5,000 bonus will generate an extra $4,463 of net incomes.