MRM1
New Member

If I change lessee/s corp leasehold imprvmnt deprec asset class in TT from 15 to 7yrs to match lease term(10/2014 to 12/2021) in 2017 tax yr do I need to amend prior yrs?

 Our s corp had leasehold improvements of $21,825 on space that we moved into on 10/1/14 (lease ends 12/1/2021).  Based on a 15yr term, we had depreciation on the leasehold improvements of $182 in 2014 and $1455 in 2015 & 2016 ($3092).  It seems that we could or should have used a recovery period to match the term of the lease (7 yrs).  If I change our leasehold improvement depreciation recovery period from 15yrs to 7yrs in TT  (on the 4562- asset entry wks form) in 2017 tax yr do I need to amend prior yrs and/or file a 3115 form or will TT in the future make the adjustment to depreciate the remaining balance over the subsequent years remaining on the lease?