Summary
If you make $3,950 a year living in the region of Maryland, USA, you will be taxed $302. That means that your net pay will be $3,648 per year, or $304 per month. Your average tax rate is 7.7% and your marginal tax rate is 15.7%. 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 $15.72, hence, your net pay will only increase by $84.28.
Bonus Example
A $1,000 bonus will generate an extra $843 of net incomes. A $5,000 bonus will generate an extra $4,214 of net incomes.