I agree and have said so on other 5471 posts. The IRS is only going to get more interested in this topic and it is a big gap if TTax users can't rely on intuit to keep the product current. Next year I will check who has the 5471 before I choose my tax software - I cannot stand the thought of manually typing into all these PDFs for one more year.
To factually answer the OP, you can't efile any part of the Federal return if you have to file a printed 5471. I'm not sure about state rules - for my home state, even though they don't require the 5471 and e-filing is legally required, TTax won't let me efile my state return unless I have efiled the Federal. So TTax is forcing a bunch of extra postage and printing and waiting and wondering on its customers, with its current stance/laziness on this topic.
