Summary
If you make $21,645 a year living in the region of Pennsylvania, USA, you will be taxed $3,215. That means that your net pay will be $18,430 per year, or $1,536 per month. Your average tax rate is 14.9% and your marginal tax rate is 21.5%. 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 $21.49, hence, your net pay will only increase by $78.51.
Bonus Example
A $1,000 bonus will generate an extra $785 of net incomes. A $5,000 bonus will generate an extra $3,926 of net incomes.