I truly appreciate anyone with expertise who tries to offer help in a Community Forum such as this. However, it sometimes seems as if people posting help never read the initial post. (Except maybe the one person who noted that he was having the same problem with a different version of the software.)
My issue was not that I had to pay an underpayment penalty (I think at some level I understand how that works), but that the using the interview interface with the software, the calculated penalty did not change when I went back to the part of the interview where the underpayment penalty is calculated and elected to use the annualized income approach to calculating the penalty (entering all the data requested by the interview for 4 different types of income and portioning those four types into the four periods specified (1/1-3/31/24, 1/1-5/31/25 and 1/1-8/31/24). I was surprised that this did not result in a reduction of the underpayment penalty since I received over 1/2 of my annual income in the last month of the year.
This led me to look at the forms which were created with the data that I entered via the interview process and I noted that form 2210 had not selected the option to attempt to reduce the penalty by annualizing income and that none of the data that I entered during the interview process annualizing my income had been carried to to Schedule A1 to Form 2210. In other words, the interview process was not properly interfacing with the forms.
I then proceeded to manually enter the required income annualization data directly onto the Tax forms and Voila my penalty was reduced by more than 1/2,
So, I don't need help in calculating my penalty (I believe that by entering the data directly into the forms the software has done this), but I do believe that there is a bug in the software that is failing to post data entered via the interview process onto Form 2210 and its Schedule. Apparently, at least one other responder to my post has experienced a similar issue.
