Illinois Form IL-1040 - Illinois Individual Income Tax Return
Form IL-1040 is the standard Illinois income tax return for all permanent residents of Illinois. We last updated the Illinois Individual Income Tax Return in December 1969. You can print this form directly from TaxFormFINDER.org, or download it as a PDF for editing or later use.
Illinois Department of Revenue Source:
Illinois usually releases forms for the current tax year between January and April. We last updated Illinois Form IL-1040 in December 1969.
For more Illinois tax forms, visit our Illinois tax forms page.