Summary
If you make $8,374,080 a year living in the region of Missouri, USA, you will be taxed $3,703,633. That means that your net pay will be $4,670,447 per year, or $389,204 per month. Your average tax rate is 44.2% and your marginal tax rate is 44.7%. 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 $44.65, hence, your net pay will only increase by $55.35.
Bonus Example
A $1,000 bonus will generate an extra $554 of net incomes. A $5,000 bonus will generate an extra $2,768 of net incomes.