Summary
If you make $64,991 a year living in the region of California, USA, you will be taxed $15,627. That means that your net pay will be $49,364 per year, or $4,114 per month. Your average tax rate is 24.1% and your marginal tax rate is 40.6%. 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 $40.59, hence, your net pay will only increase by $59.41.
Bonus Example
A $1,000 bonus will generate an extra $594 of net incomes. A $5,000 bonus will generate an extra $2,971 of net incomes.