What is the total percentage of income that will be withheld from employee's paycheck for federal income and CA state income taxes?

The total percentage of income withheld from an employee's paycheck for federal income tax varies based on the employee's income level and filing status, typically ranging from 10% to 37%. In California, state income tax rates range from 1% to 13.3% depending on income brackets. To get a specific percentage for an individual, one would need to consider their total taxable income and applicable deductions. Combining both federal and state rates, total withholding can range significantly, often falling between 15% and 50% depending on individual circumstances.