Get Answers Support Tax Filings & Payments State Filings W-2 State Filing Montana - W2 State Filing Requirements Last modified 5/25/2020 3:55:55 AM EST The state requires the filing of Form W-2 if wages were paid to Montana employees or if income tax was withheld during the year. Montana State ID Format: 10 digits and a hyphen followed by 3 constants (Eg: 9999999999-WTH) 7 digits and a hyphen followed by 3 digits and a hyphen followed by 3 constants (Eg: 9999999-999-WTH) Filing Criteria and Requirements Criteria 1: If there is any Montana state tax withheld Filing Method: Direct State Filing You must file a W-2 directly with the state. Additional Form Required: Form MW-3 Deadline: January 31, 2025 Criteria 2: If there is no Montana state tax withheld 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 Montana’s W2 filing requirements, click here Was this helpful? Yes No Related Questions Michigan - W2 State Filing Requirements Nebraska - W2 State Filing Requirements North Carolina - W2 State Filing Requirements Montana: 1099 State Filing Requirements Go to Home Page Need more help? Get in touch with our dedicated support team Contact Us (704) 684-4751 support@taxbandits.com Sign Up for a FREE TaxBandits Account! The Smart CPA Choice Register Now Already have an account? Sign in