Illinois Department of Revenue Customer Service Numbers

  1. Call at 800 732-8866

  2. Head Office Location: PO Box 1040, Galesburg, Illinois, United States
  3. Driving Direction: Follow the directions to locate Illinois Department of Revenue
  4. Locations Near You: Find nearby locations of Illinois Department of Revenue

What is Illinois Department of Revenue in the Process of?

Illinois Department of Revenue (IDOR) is a governmental department that comes under the state government of Illinois. The functions of the department are state tax collection, state lottery operation, regulate the distribution of alcoholic beverages in the state. The head office of the department is situated at Springfield, United States. The department is the major source of revenue of Illinois state and the tax collected is used for the development of the state. The Illinois Housing Development Authority is owned and operated by the Illinois Department of Revenue (IDOR).