There are two set of form 4562 and 3885A in Federal and California Tax return. In the set of forms with title "Alternative Minimum Tax Depreciation Report", the last column is "Adjustments Preferences". My question is about the value in this column.

In my 2021 Tax return, the value in column "Adjustments Preferences" in both form 4562 and form 3885A are the same. But in my 2022 Tax Return, the value is big different in these two forms. Wonder, 

1) Is tax law changed in 2022 and impacted this value?

2) Is my answer somewhere in TurboTax different from 2021 and  impacted this value?

3) How is this value calculated in TurboTax? I could not find it anywhere.

In another way to ask this question, why the value of current depreciation in form 4562 and form 3885A is so different? What is the factor impacting this value? And why the depreciation changed from year to year?

Appreciate your help!

Thanks,

Belinda