Summary
If you make $672,000 a year living in the region of California, USA, you will be taxed $304,132. That means that your net pay will be $367,868 per year, or $30,656 per month. Your average tax rate is 45.3% and your marginal tax rate is 52.6%. 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 $52.55, hence, your net pay will only increase by $47.45.
Bonus Example
A $1,000 bonus will generate an extra $475 of net incomes. A $5,000 bonus will generate an extra $2,373 of net incomes.