Tax Forms | ILLINOIS DEPARTMENT OF REVENUE - Taxpayer Assistance
Online resource that helps taxpayers understand and meet tax responsibilities. Also offers hotline for tax questions.
Services
Date of Last Formal Update
06/18/2025
Data provided by
Lake County 211
Physical Address
Online Resource, Chicago, IL 60601
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
Website
Application process
Call or visit website Documents Required: None
Fee
No fee
Eligibility
Open to all
Languages
Interpreter services available
Service area
Lake County, IL
Agency info
INTERNAL REVENUE SERVICES
Government organization overseeing federal taxes.