Thanks, but the guidance you cited only applies "If the MI-8453 is used to sign the e-file return . . ." and I didn't use MI-8453 to sign my Michigan return, at least not to my knowledge. In fact, the Michigan return wasn't "signed" at all, at least not in the usual sense. I input various info from my drivers license into the TT program, and clicked the "transmit" button, but there was no actual signature or e-signature that I saw. There is an entry on the MIchigan Information Worksheet that says "Yes __ No__ Use Federal Signature (PIN) in place of MI-8453 (See Help)" but neither response is checked and there is no "Help" section that explains this. Is it possible that my Federal self-selected 5-digit PIN used to e-sign my Federal return was automatically used by TT to e-sign my Michigan return? If so, why would the TT instructions say that I need to sign the MI-8453 within 3 days? I'm stumped.
