About the Tax Archive Site

The Tax Archive site is the place to find resources like older versions of tax forms, publications, and other documents that may be useful when filing or amending past year's tax filings.

This is also where tax professionals can research Administrative Hearings, Letter Rulings, and other current and superseded legal material. 

The goal of the Tax Archive site is to make it easier for taxpayers and tax professionals to find the information they are looking for by decluttering the main Illinois Department of Revenue website, giving little used and older information a place of its own with a separate search.