Thank you for your reply.
In this document (Fiduciary Tax (michigan.gov) it states "To optimize operational efficiency and improve customer service, Treasury mandated e-filing of individual income tax (IIT) returns. Fiduciary returns are included in the IIT e-file mandate" This seems to supersede the document you reference.
Note: within the TurboTax State Fiduciary return I cannot select file by mail and am told I must efile. This file-by-mail prohibition with the TurboTax seems to confirm the link I provided.
And so, I remain blocked. TurboTax will not let me file by mail and when I go to efile, I get the error mentioned in the original post.
Is there something I can do? Or is this a bug that needs to be fixed?
Thanks.
