I am trying to e file a 2019 corporate return and it does not transmit even though it says it's transmitting.
Did rebooting your computer help at all?
Get the latest 2019 update. There was a problem with what was being reported when you complete your e-filing.
Tried that but did not work. Ended up calling by phone for help. Had to use update/refresh and that fixed the problem. Seems that the update would update but would never ask to be installed---it was the uninstalled update that caused the problem.
