Some actions in MyTax Illinois require pop-ups to be enabled in your browser. For example, the Help Menu will open in a new browser window to display help options. Or, if you are trying to view returns, letters, and documents in a PDF format, Adobe Acrobat will open in a new browser window. To allow pop-ups in your browser, please see your browser’s help menu for instructions.
Note: If you see a screen that says “Retrieving your letter…” and has a countdown, click on the link that says “If your letter does not open automatically, click here.”