Summary
If you make $15,356 a year living in the region of California, USA, you will be taxed $1,635. That means that your net pay will be $13,721 per year, or $1,143 per month. Your average tax rate is 10.7% and your marginal tax rate is 33.1%. 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 $33.12, hence, your net pay will only increase by $66.88.
Bonus Example
A $1,000 bonus will generate an extra $669 of net incomes. A $5,000 bonus will generate an extra $3,344 of net incomes.