Regional Offices of the Illinois Department of Revenue are at the following locations:
ILLINOIS
Chicago (60661)
555 W. Monroe Street, Suite 1100
(312) 814-3142
Des Plaines (60016-1563)
Suburban North Regional Building
9511 Harrison Ave.
(800) 732-8866
Fairview Heights (62208-1331)
15 Executive Drive, Suite 2
(800) 732-8866
Marion (62959-1196)
2309 W. Main Street
Suite 114
(800) 732-8866
Springfield (62702)
Willard Ice Building
101 W. Jefferson Street
(800) 732-8866
(217) 782-3336
Rockford (61101)
200 S. Wyman
(800) 732-8866
Ill. Admin. Code tit. 2, § 1200.310