Summary
If you make $49,999 a year living in the region of Arizona, USA, you will be taxed $9,415. That means that your net pay will be $40,584 per year, or $3,382 per month. Your average tax rate is 18.8% and your marginal tax rate is 22.9%. 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 $22.89, hence, your net pay will only increase by $77.11.
Bonus Example
A $1,000 bonus will generate an extra $771 of net incomes. A $5,000 bonus will generate an extra $3,856 of net incomes.