Updated January 11, 2022
Find tax forms and file online or use the contact information on this page to reach State and Federal tax agencies.
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Contacts for Assistance & Filing by Mail
AARP Tax Help
Find an AARP tax site and schedule an appointment to receive help filing your taxes at https://www.aarp.org/money/taxes/aarp_taxaide/locations.html
State Information
To order forms call 800.356.6302. Or, file a request for forms online at https://www2.illinois.gov/rev/forms/Ordering/Pages/default.aspx
For assistance call 800.732.8866. (Monday–Friday, 8:30 am–5:00 pm)
File State Taxes by Mail
Without Payment
Illinois Department of Revenue
PO Box 19041
Springfield IL 62719-0001
With Payment
Illinois Department of Revenue
PO Box 19027
Springfield IL 62726-0001
For more information and addresses, please visit https://www2.illinois.gov/rev/aboutidor/Pages/addresses.aspx#qst3
Federal Information
To order Federal tax forms call 800.829.3676.
For assistance call 800.829.1040. (Monday–Friday, 7:00 am–7:00 pm)
Local Offices of the Internal Revenue Service
230 S Dearborn Str
Chicago IL 60604
Monday–Friday, 8:30 am – 4:30 pm. Assistance at this location is by appointment only, call 844.545.5640 to make an appointment. Services provided at this location: https://www.irs.gov/help/services-provided-one. Call 312-292-4912 for Chicago office information.
File Federal 1040 Taxes by Mail
Without Payment
Department of the Treasury
Internal Revenue Service
Kansas City, MO 64999-0002
With Payment
Internal Revenue Service
PO Box 931000
Louisville, KY 40293-1000
Learn more about filing through the post office at https://www.irs.gov/filing/illinois-where-to-file-addresses-for-taxpayers-and-tax-professionals.
Online Forms & Filing
Illinois Tax Forms
https://www2.illinois.gov/rev/forms/incometax/Pages/currentyear/individual.aspx
Scroll through the list and click on a tax form to view, download, or print it.
File Your State Return Online
https://www2.illinois.gov/rev/programs/mytax/Pages/il-1040.aspx
Federal Tax Forms
https://apps.irs.gov/app/picklist/list/formsPublications.html
Type a form number into the box above the search results to quickly pull up the tax form you need. Click on the form to view, print, or download it.