You may be missing the IL-PIN. Unfortunately, there is a limit to how many times a tax return can be submitted for e-filing. This extra layer of protection for taxpayers is not common, but Illinois does have this feature. It could explain why everything was fine for the federal return and the Reviews were fine, and yet it would not e-file.
Click the links for guidance for Illinois driver's license related errors and Illinois signature requirement errors so you will know for next year.
Illinois does allow an IL-PIN instead of the driver's license which would allow taxpayers to electronically file. IL-PIN can be looked up on their website: IL-PIN Lookup.
I did not see your question until now.
For your future reference, as well, to contact TurboTax, here is the phone number: (800) 446 - 8848. For more information about ways to contact TurboTax, see: What is the TurboTax phone number?
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