I agree with that but the S corp has completed and attached to K-1 form 8858 as if the shareholder has to file as well. When you look at 8858 instructions item 2 under "Who must file" confusingly states "A U.S. person that directly (or indirectly through a tier of FDEs or partnerships) is a tax owner of an FDE or operates an FB." Why did S corp provide 8858?  Is filing a form 8858 a better answer given the severe penalties for not filing? Any downside to filing?