regarding @fanfare ... "If TurboTax does ask for the dates, and calculates the wrong penalty, that's bad."
The exact dates of my estimated payments were entered. I don't understand why TurboTax can't figure out the exact penalty. Why does TT have to "estimate" the penalty? Why is it that the IRS is able to calculate the penalty but TurboTax isn't able to?
Do we have any way to calculate what the penalty should be? Seems odd we aren't able to double check IRS's findings.
