If you are seeing "ready to mail" in your TT account---that means your IL return has not been filed. You need to print it, sign and date it in ink, and mail it yourself or switch to e-filing and e-file it.
HOW CAN I E-FILE STATE AFTER ALREADY E-FILING FEDERAL
https://ttlc.intuit.com/turbotax-support/en-us/help-article/state-taxes/e-file-state-already-filed-f...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
