BobKamman
Level 15

You are correct in reading Pub 536 and it's not improbable that the computation is beyond the capability of the program.  What are you looking at from the 2019 return?  There is no requirement that it show the carryover.  So what you have is something that the software used by last year's preparer was able to generate.  I don't know if there's any way to determine whether it's an Intuit product -- or whether you are cooking with margarine but need the high-priced spread(sheet).