Gov and search for withholding requirements for updates, online tools, and more information, including: Forms and Publications List all payees withheld upon during the filing period.Use Form 587, Nonresident Withholding. Allocation Worksheet, to determine if withholding is required and the amount of California source income subject to. All required information must be filled out completely and accurately on FTB Form 592-B. The Tax Department is streamlining withholding tax and wage reporting forms and Web File applications. File in the drop box at the courthouse at 720 Ninth Street. Form W-4 tells your employer or employer's payroll representative how much federal income tax withholding to keep from each paycheck. Find what you need to apply for or renew an individual tax identification number (ITIN). Filing a form online is easier and faster than paper filing.