Taxpayer Services Division
State Taxpayer Identification Number

The State Taxpayer Identification Number (STIN) is a number assigned by the Department to every business that registers for a tax specific identification number, permit, or license. Each registration for a particular business is housed under its STIN . The Department uses the STIN to reference taxpayer account information, as well as to establish liabilities and credits.

Registration with the Department of Revenue does not relieve a business from its requirement to register with the Secretary of State or any other agency. You must contact the appropriate agency to obtain their registration requirements.

If you need additional registration information, contact Registration and Licensing at 1-877-GADOR11 (1-877-423-6711) or via e-mail to Registration information is also available at .

Return to Registration & Licensing Homepage

Return to TSD Homepage