First of all I have no idea who Jane is; second the acronym PEBKAC means nothing to me, so keep using it; third, I already have stated that I prepared both the 1120-S and the 1040 for this client, and tried using the worksheet for QBI deduction, but had trouble with it. I have been through many sites where accountants have specifically zeroed in on the QBI deduction as a nightmare calculation for various reasons and none of them were berated for the complaints. If this was such a slam dunk, why did the Journal of Accountancy choose to complain about it, including a front page highlighting the issues? To those who were helpful here, I thank you. For those who were not, lose the sarcastic attitudes and no-it-all demeanor...it helps no one...