Turbotax does not allow me to put 0 in box 2 for the 1098's. I really shouldn't put all 4 in, as 2 are prior to 2017 and the current one is this year and they have different limits. So if I have to put all 3 mortgages outstanding balances added together in box 2 then I will be over my limit. Turbotax should calculate it correctly.
