Get Answers Support Tax Filings & Payments State Filings General Where to find the Employer's State ID number? Last modified 4/3/2023 2:50:49 AM EST The employer's State ID number is required when declaring the income and withholdings for a state. This information will be available in the letter you receive from the state’s department of revenue while registering your business If you cannot locate this letter, you can contact the appropriate state agency to obtain your State ID Number. To know more about the state ID number Formats Click Here. Was this helpful? Yes No Related Questions How to print Form 1099-NEC state copies in TaxBandits? I do not have a state ID number. Can I e-file my W-2 Form with the state agency? What is Form MA 1099-HC? What information is required for the electronic filing of Form MA 1099-HC? What is the State/Payer's State Number in Form 1099? 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