Illinois Income Tax Forms
Streamline your tax filing!
- Current Year Illinois Tax Returns: Electronically file your Illinois return alongside your federal return.
- Prior Year Tax Returns: While e-filing for the current year is unavailable for past returns, you can still prepare them using eFile.com's free tax calculators. Simply print, sign, and mail the completed forms to the Illinois Department of Taxation.
- Need Previous Year IL Forms? Utilize the search function below if you can't locate a specific IL form.
Details on how to only prepare and print an Illinois Tax Return.
In addition to filing Illinois Forms you might also have to file previous IRS Tax Return Forms.
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A list of income tax forms for other states.
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