Hi, I ended up with an underpayment penalty of $13, but don't see how or where TuboTax calculated it. I did a full printout of all worksheets and forms and don't see how this was calculated. Form 2210 no longer appears when I run the final check of my return and the $13 only shows up at the end of my 1040. Is there a way to see how they are calculating the penalty or do I need to look at the IRS website directly? Thanks.
