Is there a bug in TT? I also have an underpayment penalty. But I have done the math from last year, and I 100% paid what I owed on time. Had the correct amount withheld from my paychecks by my employer and paid the balance due when it was due. Note, taxes last year were due April 18th, not the 15th because 1) a weekend, 2) DC's emancipation day holiday. The only thing I can think of is that TT calculating a penalty based on an April 15, 2023 filing due date.
Also the information in the software to understand why one might be receiving this penalty is completely lacking, its a total black box.
