Download Free Illinois Individual Income Tax Return Form
Download and use this form to file your individual income tax return electronically by using WebFile format, it is available on website for free, its a tax professional software. Almost all taxpayers can file electronically. Please visit the website at tax.illinois.gov or see your tax professional. You can also use paper form IL-1040, if you are not filing it electronically.
Form 1099-G Information — We no longer automatically mail 1099-G forms. Instead of this, we ask that you get this information from our website. Check the box if you still want us to mail you a paper Form 1099-G next year. If no payment enclosed, mail to: If payment enclosed, mail to: Illinois department of revenue, PO BOX Springfield IL 62726-0001 Galesburg IL 61402-1040 *260002110* DR AP RR DC IL-1040 back (R-12/12).