Summary
If you make $12,948 a year living in the region of Missouri, USA, you will be taxed $996. That means that your net pay will be $11,952 per year, or $996 per month. Your average tax rate is 7.7% and your marginal tax rate is 13.5%. 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 $13.48, hence, your net pay will only increase by $86.52.
Bonus Example
A $1,000 bonus will generate an extra $865 of net incomes. A $5,000 bonus will generate an extra $4,326 of net incomes.