I unfortunately don't think I have a choice. When I get though the "Mortgage Interest, Refinancing, and Insurance" section in Deductions, it displays the correct total deduction as the last step before I click done. That is, it shows the prorated interest paid + total points. This should be what shows up in Schedule A Line 8a, but it's not. All the worksheets in Forms are also correct; points are not prorated anywhere. It's only Schedule A Line 8a that is wrong. I am pretty convinced this is a TurboTax bug.
I worry that a lot of people (with mortgages over $750k, paid points, and are itemizing deductions), are having the same issue without knowing it. Our mortgage was not much over $750k so it doesn't amount to a huge difference, but it could be much bigger for others. I would love to report this to TurboTax, but I have no idea how.
In any case, thanks for your help @AmyC.
