Summary
If you make $12,583 a year living in the region of South Carolina, USA, you will be taxed $1,369. That means that your net pay will be $11,214 per year, or $935 per month. Your average tax rate is 10.9% and your marginal tax rate is 14.2%. 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 $14.15, hence, your net pay will only increase by $85.85.
Bonus Example
A $1,000 bonus will generate an extra $859 of net incomes. A $5,000 bonus will generate an extra $4,293 of net incomes.