Has anyone determined if Turbotax is calculating the penalty when it should? From all appearances, I do owe a penalty (underpaid for first two quarters) yet it shows zero for the penalty. Specifically, Line 17 of Form 2210 shows amounts for col a) and col b), underpayment for 4/15 and 6/15, but Line 19 Penalty shows zero. I did a Quick Zoom to see the worksheet for Line 19, and it does show the underpayment amounts on the worksheet but Days Late, Rate Period, Interest Rate and Penalty fields are blank, so it apparently didn't do the calculation.
Second question, if I eFile as is (zero penalty erroneously calculated), will the return be flagged immediately by the IRS, and give me an opportunity to correct? If not, and it's caught further down the line, will I owe more interest and penalty?
