Summary
If you make $45,432 a year living in the region of California, USA, you will be taxed $8,993. That means that your net pay will be $36,439 per year, or $3,037 per month. Your average tax rate is 19.8% and your marginal tax rate is 27.4%. 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 $27.35, hence, your net pay will only increase by $72.65.
Bonus Example
A $1,000 bonus will generate an extra $727 of net incomes. A $5,000 bonus will generate an extra $3,633 of net incomes.