Summary
If you make $55,100 a year living in the region of Massachusetts, USA, you will be taxed $11,950. That means that your net pay will be $43,150 per year, or $3,596 per month. Your average tax rate is 21.7% and your marginal tax rate is 35.0%. 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 $35, hence, your net pay will only increase by $65.
Bonus Example
A $1,000 bonus will generate an extra $650 of net incomes. A $5,000 bonus will generate an extra $3,250 of net incomes.