Taxpayer Information Lines | ILLINOIS DEPARTMENT OF REVENUE - Taxpayer Assistance
Online Resource, Chicago, IL 60601
Eligibility
Open to all
Hours
Service Hours
Monday: 8:30 AM - 5:00 PM
Tuesday: 8:30 AM - 5:00 PM
Wednesday: 8:30 AM - 5:00 PM
Thursday: 8:30 AM - 5:00 PM
Friday: 8:30 AM - 5:00 PM
800-732-8866
Voice - Primary Contact Number
Languages
Interpreter services available
Application process
Call or visit website Documents Required: None
Fees
No fee
Service area
Lake County, IL
Description
Online resource that helps taxpayers understand and meet tax responsibilities. Also offers hotline for tax questions.
Date of Last Formal Update
06/18/2025
Data provided by
Lake County 211
What's Here
Providing organization
INTERNAL REVENUE SERVICES
Government organization overseeing federal taxes.