The Illinois Department of Revenue is taking proactive measures to prevent the spread of COVID-19. At this time, a limited number of taxpayer phone system agents are available. Due to the reduced number of agents taking calls, wait times may be longer than normal. Taxpayers can save time and avoid the wait by contacting the department by email at one of the addresses listed below:
To receive assistance by phone, please call 800 732-8866 or 217 782-3336. Representatives are available Monday through Friday, 8 am - 5 pm. Our TDD (telecommunication device for the deaf) number is 800 544-5304.
Other Department Phone Numbers
Additional taxpayer resources are available during the COVID-19 (Coronavirus) outbreak.