@DianeW777 I have different view from yours.
The line 10 shows the 'deduction' from QBI. That further reduces the income even when there are other losses exceeding the income. If I am reading the forms right, that amount is calculated as a percent of total Gross Income (before losses are subtracted) so that amount will always be positive number or 0.
That is also supported by fact that
1) I had disallowed losses carried over in 2019 return and still leftovers for 2020.
2) This field is on worksheet for individual property (if you have more than 1) while line 10 on 1040 is for all aggregated properties.
I hope I am wrong, but that's what I gathered.
BTW, I just spent 3 hours on phone with 2 different Turbotax experts and they couldn't figure it out either.
