I need to correct depreciation in 2016, 2017, and 2018 return, and I need to amend 2017 and 2018 return to correct itemization. Should I:
- Make accounting change (form 3115) on 2017 for depreciation correction in 2016, amend depreciation and itemization for 2017 and 2018, or
- Make accounting change (form 3115) on 2019 for depreciation corrections in 2016-2018, and only amend the itemization part for 2017 and 2018?
- Or either way is acceptable?
Thanks.