I have the same issue in that TT is calculating an underpayment penalty for 2021 even though I always pay 110% of the previous year's taxes and should qualify for a waiver of the penalty. I am hoping this is because Form 2210 for 2021 has not yet been released yet. Hopefully once the form is available, TT will go back and fix this error. Please keep us posted if any more info is available. Otherwise, this must be a glitch in TT that needs attention.
