@grich01R - I also have the Deluxe version for 2020 (CD / download).....i was able to replicate the bug..... I punched in each loan via the step-x-step process and after completing the 2nd loan, Turbo tax stated "you are getting a deduction of $26,000", but when I look at the Schedule A, there is $37,000 posted!
I was able to pull up the Deductible Home Mortgage Interest Worksheet and it correctly calculated 71% and $26,000 of interest. it states this interest should be applied to Line 8a of Schedule A, but when I look at Schedule A, line 8a has $37,000.
I tried 4 use cases and here is the problem: if NEITHER average loan balance EXCEEDS the cap for its time frame, the result is incorrect. and this is EXACTLY what @grich01R has on his tax return
use cases: I punched these 4 permutations into Deluxe download for 2020. In three cases, the reduced interest correctly posted to Schedule A. In one case - which is similar to @grich01R 's case, the reduced interest did NOT correctly post to Schedule A, even though the Work sheet calculated the reduced interst with the instuction to apply the result to Schedule A
Pre 12.15.17 loan $1,000,000 and post 12.15.17 loan $750,000 incorrect result (neither loan exceeds its respective cap)
Pre 12.15.17 loan $1,000,001 and post 12.15.17 loan $750,000 - correct result (one loan above its cap)
Pre 12.15.17 loan $1,000,000 and post 12.15.17 $750,001 - correct result (one loan above its cap)
Pre 12.15.17 loan $1,000,001 and post 12.15.17 $750,001 - correct result (both loans above its respective cap)
Definately a bug!!!!! I suspect affects every taxpayer who had multiple loans with one prior to 12/15/17 and one after 12/15/17, and neither loan was above the cap for its respective time frame has the bug.
if you contact TT Support, I wonder what their response is......
