If you make $50,000 a year living in the region of Arizona, USA, you will be taxed $9,470. That means that your net pay will be $40,530 per year, or $3,378 per month. Your average tax rate is 18.9% and your marginal tax rate is 26.2%. 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 $26.20, hence, your net pay will only increase by $73.80.
A $1,000 bonus will generate an extra $738 of net incomes. A $5,000 bonus will generate an extra $3,690 of net incomes.