Illinois Income Tax Forms
Illinois State Income Tax Forms for current tax year can be e-Filed in conjunction with a IRS Income Tax Return. Details on how to only prepare and print an Illinois Tax Return.
Forms prior to the current tax year can no longer be e-Filed. You can complete the forms with the help of eFile.com free tax calculators. Complete the respective Form(s) below, sign, and mail them to the Illinois Department of Taxation. In addition to filing Illinois Forms you might also have to file previous IRS Tax Return Forms.
In addition to filing Illinois Forms you might also have to file previous IRS Tax Return Forms. If you can not find the form listed, use the search button below.
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A list of income tax forms for other states.
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