We have had this same exact same problem on our Mac (Deluxe + State) for over a week. We’ve spent countless hours troubleshooting it (trying the workarounds listed in these forums, reviewing all data, checking all forms for errors, deleting and reinstalling the app, even installing it on a separate Mac altogether).
We finally called the Turbo Tax helpline yesterday and got escalated in support tiers - only to be ultimately told we have an isolated error with no workaround (except mailing in).
Quite frustrated (especially since other users in this thread had reported it’s a known issue being worked on). All confidence was thrown out the window.
Needless to say, we have begun the refund process for the software itself and the state filing fee we paid.
We ended up downloading H&R Block and the efile transmitted just fine.
