Summary
If you make $54,140 a year living in the region of Massachusetts, USA, you will be taxed $11,695. That means that your net pay will be $42,445 per year, or $3,537 per month. Your average tax rate is 21.6% and your marginal tax rate is 25.6%. 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 $25.55, hence, your net pay will only increase by $74.45.
Bonus Example
A $1,000 bonus will generate an extra $745 of net incomes. A $5,000 bonus will generate an extra $3,723 of net incomes.