This is a flaw in the TurboTax layout. When it comes up at the end of the Step by Step process, you can select whether to file electronically now or later. There is no warning on subsequent screens that the return has not been electronically filed. I'm sure this has happened to others who may come back later to complete o0r review a return and file it. There is no option in the dropdown menu structure either, that the return has not been electronically and providing the option to do so at that location.
