Summary
If you make $19,906 a year living in the region of California, USA, you will be taxed $2,667. That means that your net pay will be $17,239 per year, or $1,437 per month. Your average tax rate is 13.4% and your marginal tax rate is 21.0%. 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 $20.99, hence, your net pay will only increase by $79.01.
Bonus Example
A $1,000 bonus will generate an extra $790 of net incomes. A $5,000 bonus will generate an extra $3,951 of net incomes.