What is form W-4?
Form W-4 (Employee’s Withholding Allowance Certificate), is used to calculate the correct amount of federal income tax to withhold from an employee’s wages. Form W-4 must be completed by each employee on or before their first day of work. If no W-4 form is on file, employers must withhold the maximum amount from employee paychecks. Employers must keep a form W-4 on file for each employee. If you are not sure how to complete form W-4, use IRS publication 919 (you must have Adobe Acrobat reader to download).
