Summary
If you make $12,000 a year living in the region of Maryland, USA, you will be taxed $1,403. That means that your net pay will be $10,598 per year, or $883 per month. Your average tax rate is 11.7% and your marginal tax rate is 12.2%. 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 $12.19, hence, your net pay will only increase by $87.81.
Bonus Example
A $1,000 bonus will generate an extra $878 of net incomes. A $5,000 bonus will generate an extra $4,391 of net incomes.