Based on the information from the search results, if you make $30,000 a year in California, your net pay after taxes will be $25,015 per year or $2,085 per month. The federal tax on a $30,000 salary is $435. However, the exact amount of taxes you will pay depends on various factors such as your filing status, deductions, and state of residence. Therefore, it is recommended to use an income tax calculator to get a more accurate estimate of your after-tax income.