Get Answers Support Tax Filings & Payments State Filings W-2 State Filing Oklahoma - W2 State Filing Requirements Last modified 5/25/2020 4:08:45 AM EST The state requires the filing of Form W-2 if wages were paid to Oklahoma employees or if income tax was withheld during the year. Oklahoma State ID Format: 3 characters and hyphen followed by 8 digits and hyphen followed by 2 digits (Eg: WTH-99999999-99) Note: The state also accepts Federal TIN as the state ID number. (Eg: 999999999) Filing Criteria and Requirements Criteria 1: Even if there is no Oklahoma 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 Oklahoma’s W-2 filing requirements, click here Was this helpful? Yes No Related Questions Virginia - W2 State Filing Requirements West Virginia - W2 State Filing Requirements Wisconsin - W2 State Filing Requirements Oklahoma: 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