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Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

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Regional Office Locations & Contact Information

Chicago

SUITE 1100
555 WEST MONROE STREET
CHICAGO, ILLINOIS 60661

800 732-8866
Monday - Friday (except holidays)
8:30 am - 5:00 pm
Directions

Des Plaines

SUBURBAN NORTH REGIONAL BUILDING
9511 HARRISON STREET
DES PLAINES, ILLINOIS 60016-1563

800 732-8866
Monday - Friday (except holidays)
8:30 am - 5:00 pm
Directions

Fairview Heights

SUITE 2
15 EXECUTIVE DRIVE
FAIRVIEW HEIGHTS, ILLINOIS 62208-1331

800 732-8866
Monday - Friday (except holidays)
8:30 am - 5:00 pm
Directions

Marion

SUITE 114
2309 W. MAIN STREET
MARION, ILLINOIS 62959-1196

800 732-8866
Monday - Friday (except holidays)
8:30 am - 5:00 pm
Directions

Rockford

200 S. WYMAN STREET
ROCKFORD, ILLINOIS 61101

800 732-8866
Monday - Friday (except holidays)
8:30 am - 5:00 pm
Directions

Springfield

WILLARD ICE BUILDING
101 WEST JEFFERSON STREET
SPRINGFIELD, ILLINOIS 62702

800 732-8866
217-782-3336
Monday - Friday (except holidays)
8:00 am - 5:00 pm
Directions