Summary
If you make $299,988 a year living in the region of California, USA, you will be taxed $117,082. That means that your net pay will be $182,906 per year, or $15,242 per month. Your average tax rate is 39.0% and your marginal tax rate is 48.5%. 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 $48.47, hence, your net pay will only increase by $51.53.
Bonus Example
A $1,000 bonus will generate an extra $515 of net incomes. A $5,000 bonus will generate an extra $2,577 of net incomes.