Also FWIW, there were several reports of mortgage calculation errors for tax year 2020. "Champs" have access to a sub-forum where turbotax posts "containment articles" when a bug is recognized, they give the date for the fix or other information. Unfortunately, I can't check on the details because all the old containment articles are coming up "access denied". But it may be that this bug is already known and you just need to make your claim when you get the bill.
