About IDOR

Mission Statement

To administer Illinois tax laws and collect tax revenues in a fair, consistent, and efficient manner for taxpayers and to provide accurate, timely, and reliable funding and information to state and local constituents.


By using best practices, the Department will continuously innovate to increase accuracy, efficiency, and productivity in all areas of operations and tax administration, thereby earning respect, delivering value, and being a trusted source of information.

Management Team

Department Stats