Illinois Income Tax Return Instructions

e-File your IL and IRS returns together on so you only have to enter all your tax data once. eFile will generate your IL-1040 for you plus other needed IL forms as you enter your income and other information.

How To?
A: Access IL Forms
Step 1: Sign in to
Step 2: Select State Taxes on the left menu.
On the right page, select I'd like to see the forms I've filled out or search for a form.
Step 3: Scroll to the IL State Forms drop-down and select the right down arrow.
Step 4: Select the form in question and review, edit the entries and save.
or Step 5: Use the IL search box to find other forms or click on the links below the search box.
Step 6: Click on Add Form next to the form name, complete, save, and continue.
B: Tax Refund Status
C: IL Tax Return Instructions