With the PC download version of Premier, I ended up going to the Forms view, "Ded Home Mort" form, right click on Part 1, line 1 to override value, entered my own average balance calculation of original debt, then right click on Part 1, line 7, entered 0, then it calculated the interested deduction correctly for me. IRS Pub 936 clearly calls out that original debt before 12/16/2017 that is subsequently refinanced (no cash out) is still eligible for the $1M cap. "Any secured debt you use to refinance home acquisition debt is treated as home acquisition debt. However, the new debt will qualify as home acquisition debt only up to the amount of the balance of the old mortgage principal just before the refinancing."
