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MO W-4 certificate W-4

MO W-4 certificate W-4


MO W-4 certificate W-4



  • Paper: Letter (8.5in x 11in)
  • Copies to print: 2
    1. Give a blank form to a new employee or to employees who have changes in their tax situation.
    2. The employee fills up this form and returns it to the employer.
    3. Employers must keep a copy for their records.
      • If used as a new hire reporting form, mail to:
        Missouri Department of Revenue
        PO Box 3340
        Jefferson City MO  65105-3340
      • Or fax to: (573) 526-8079


  • Employers must submit this report within 20 days of start date. A re-hire is an employee who has returned after a separation of at least 60 days.
  • An employer may be fined $25 for each instance of failure to report an employee and $350 per employee if a conspiracy to not report exists between the employer and employee.
  • If an employee does not complete and turn in the required Form MO W-4, withhold using zero allowances at a single tax rate.
  • Employees claiming military spouse exemption must submit the following documents:
    • The servicemember's leave and earnings statement.
    • The servicemember's IRS W-2.
    • The servicemember's military orders.
    • The employee's military spouse ID card.
    • The employee's verification of residency.
  • Indicates employees tax situation so the employer can withhold the correct amount of state tax from employees paycheck. Also used to report newly hired and re-hired employees to the state.
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