W4 Form 2021 Pdf: This new form contains a five-stage process for determining retention for employees and the new 15-T (Federal Income Tax Withholding Methods) publication. It does not use retention allowances anymore. All employees should fill out a W-4 when hired, or when their life or financial situation changes. Some employees, for example, may want a new W-4 to be completed when they work a second job, marry, have a child, or divorce.
Form W-4 should, preferably on their first day of work, but not before their first week, be filled out by each new employee. You do not have to file W-4 forms with the IRS.
But they should be kept in the file for at least four years with other personnel. Payroll software providers are often able to provide the employee with the option of completing this documentation completely online, and often before their first day.