If you filed your return using MyTax Illinois, you should be able to print your return by logging into the MyTax Illinois system, viewing your return, and clicking "print". For all other returns or for those returns you are unable to print from the MyTax Illinois system, you must complete Form IL-4506, Request for Copy of Tax Return, if you need a copy of your tax return and any attachment to that return. A separate Form IL-4506 must be completed for each tax type requested. There is a $5 charge for each copy of the return, which includes all attachments, and an additional $5 charge if you want the document certified.
Mail Form IL-4506 along with your payment to: