Summary
If you make $665,600 a year living in the region of New York, USA, you will be taxed $275,802. That means that your net pay will be $389,798 per year, or $32,483 per month. Your average tax rate is 41.4% and your marginal tax rate is 46.7%. 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 $46.70, hence, your net pay will only increase by $53.30.
Bonus Example
A $1,000 bonus will generate an extra $533 of net incomes. A $5,000 bonus will generate an extra $2,665 of net incomes.