Summary
If you make $42,550 a year living in the region of Illinois, USA, you will be taxed $8,708. That means that your net pay will be $33,842 per year, or $2,820 per month. Your average tax rate is 20.5% and your marginal tax rate is 24.6%. 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 $24.60, hence, your net pay will only increase by $75.40.
Bonus Example
A $1,000 bonus will generate an extra $754 of net incomes. A $5,000 bonus will generate an extra $3,770 of net incomes.