TaxBandits Knowledge Base

Missouri - W2 State Filing Requirements

The state requires the filing of Form W-2 if wages were paid to Missouri employees or if income tax was withheld during the year. 

Missouri State ID Format:
 

• 8 digits (e.g., 99999999)
   

Filing Criteria and Requirements

Criteria 1: If there is any Missouri State Tax Withholding

• Filing Method: Direct State Filing

  • You must file a W-2 directly with the state.

• Additional Form Required: Form MO-W3 

  • If you file W2 state forms with TaxBandits, we support Form MO-W3 at no additional cost

• Deadline: January 31, 2025

Criteria 2: If there is no Missouri State Tax Withholding

• Filing Method: Direct State Filing

  • You must file a W-2 directly with the state.

• Additional Form Required: Not Required

• Deadline: January 31, 2025

For more information about Missouri’s W2 filing requirements, click here.