Summary
If you make $12,583 a year living in the region of Alabama, USA, you will be taxed $1,330. That means that your net pay will be $11,253 per year, or $938 per month. Your average tax rate is 10.6% and your marginal tax rate is 13.1%. 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 $13.12, hence, your net pay will only increase by $86.88.
Bonus Example
A $1,000 bonus will generate an extra $869 of net incomes. A $5,000 bonus will generate an extra $4,344 of net incomes.