I'm trying to correct an issue in my 2022 return where I was a material participant in an S-corp, but my tax preparer at the time incorrectly treated pass-through profit from the business as a fully passive activity, triggering a small amount of NIIT.
It's enough of a difference to try fixing on my own, but not quite enough to hire a tax preparer, especially on short notice.
I have found that it's very straightforward to update 8960 and how that flows through to my 1040, but my original return included passive-activity related forms (8582, 8582-CR, and 3800) that seem like they could create a consistency issue when processing the amended return.
To clarify, the consistency issue is that I