If you make $58,500 a year living in the region of Alabama, USA, you will be taxed $12,750. That means that your net pay will be $45,750 per year, or $3,813 per month. Your average tax rate is 21.8% and your marginal tax rate is 33.6%. 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 $33.55, hence, your net pay will only increase by $66.45.
A $1,000 bonus will generate an extra $665 of net incomes. A $5,000 bonus will generate an extra $3,323 of net incomes.