Complete this form so that your employer can withhold the correct California state income tax from your pay. Personal Information.Need to withhold more money from your paycheck for taxes, decrease the number of allowances you claim, or have additional money taken out. 1. Download necessary form(s) 2. Please complete each section of the entire form along with your signature. 3. Employers generally must withhold federal income tax from employees' wages. To figure out how much tax to withhold, use the employee's Form W-4. Download Form W-4 V: Voluntary Withholding Request from the IRS' website. The Alabama Department of Revenue offers a FREE electronic service, My Alabama Taxes (MAT), for filing and remitting withholding tax. This publication is designed to provide employers with general guidance regarding Colorado wage withholding requirements.