Summary
If you make $3,739,840 a year living in the region of Maine, USA, you will be taxed $1,704,067. That means that your net pay will be $2,035,773 per year, or $169,648 per month. Your average tax rate is 45.6% and your marginal tax rate is 46.5%. 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 $46.50, hence, your net pay will only increase by $53.50.
Bonus Example
A $1,000 bonus will generate an extra $535 of net incomes. A $5,000 bonus will generate an extra $2,675 of net incomes.