a) Public information concerning tax Acts administered by the Department of Revenue, tax forms and tax return filing information may be obtained by visiting a Regional Office of the Department of Revenue (for Regional Office locations, see Section 1200.310); by calling one of the following information and assistance lines:
(800) 732-8866
(217) 782-3336
TDD − Telecommunications Device for the Deaf
(800) 544-5304
or by writing:
Taxpayer Correspondence
Illinois Department of Revenue
P.O. Box 19001
Springfield, Illinois 62794-9001
- b) General information regarding the Department and various topics of general interest to taxpayers and tax practitioners can be found at the Department's website at www.tax.illinois.gov.
- c) Pursuant to Section 4 of the Illinois Department of Revenue Sunshine Act [20 ILCS 2515/4], a quarterly index of all letter rulings issued by the Department for the previous quarter is published in the Illinois Register. A listing of letter rulings issued by the Department, as well as a copy of those rulings, is also available on the Department's website.
- d) Pursuant to Section 4 of the Illinois Department of Revenue Sunshine Act [20 ILCS 2515/4], a cumulative annual index of letter rulings is also published in the Illinois Register. The public may also obtain a copy of the cumulative index from the Department at cost. Requests should be addressed to the Legal Services Bureau, 101 West Jefferson Street, 5-500, Springfield, Illinois 62794.
(Source: Amended at 48 Ill. Reg. 5192, effective March 15, 2024)