Summary
If you make $54,999 a year living in the region of South Carolina, USA, you will be taxed $12,425. That means that your net pay will be $42,574 per year, or $3,548 per month. Your average tax rate is 22.6% and your marginal tax rate is 36.6%. 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 $36.55, hence, your net pay will only increase by $63.45.
Bonus Example
A $1,000 bonus will generate an extra $635 of net incomes. A $5,000 bonus will generate an extra $3,173 of net incomes.