I know this is an old discussion. I just wanted to say that for my 2021 return I was finally able to e-file my CA 568 form for my SMLLC using TT Home& Business. Thank you for finally adding support for this! No trip to the post office for certified mail this year :-). I received 2 acceptances from CA via email, one for my personal return and one for the LLC return in case anyone was wondering how you know if the e-file worked.
