This information is accurate, but turbotax 2022 will refuse to e-file a 1040 return that references form 3520 in Part IV. As some others on the forum have pointed out, the review errors-out with the message:
Your return contains one of the following unsupported forms: 3520, 3520-A, 5471, 8621, 8865
This is frustrating because 3520 gets mailed separately to the 1040, and because elsewhere on this site there are reports of people having problems e-filing in this situation, but also suggestions that e-filing should work
when mailing a paper 3520.
I am going to give up and file by mail, but this is disappointing. Intuit needs to either fix the bug or update their documentation to reflect that this is a restriction of the e-file process. This shouldn't have to be a forum question.
