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Make edits, fill in missing information, and update formatting in US Legal Forms—just like you would in MS Word.

Download a copy, print it, send it by email, or mail it via USPS—whatever works best for your next step.

Sign and collect signatures with our SignNow integration. Send to multiple recipients, set reminders, and more. Go Premium to unlock E-Sign.

If this form requires notarization, complete it online through a secure video call—no need to meet a notary in person or wait for an appointment.

We protect your documents and personal data by following strict security and privacy standards.
An Illinois resident, you must file Form IL-1040 if. you were required to file a federal income tax return, or. you were not required to file a federal income tax return, but your Illinois base income from Line 9 is greater than your Illinois exemption allowance.
Mailing Addresses AreaAddress IL-1040, Illinois Individual Income Tax Return Without Payment PO BOX 19041 SPRINGFIELD IL 62794-9041 With Payment PO BOX 19027 SPRINGFIELD IL 62794-9027 IL-1040-ES, Estimated Income Tax Payments for Individuals ILLINOIS DEPARTMENT OF REVENUE SPRINGFIELD IL 62736-00015 more rows