If you are selling a rental property,you sue the rental interview to enter all the sale information. As you go through the rental interview, you say you sold the property. When you come to the asset summary, you edit each asset to enter the allocation of the sale price and selling cots to each asset. You leave the roof at the depreciated value. You already entered the cost of it when you purchased and added it to assets. You can't change the original cost you ave been using for depreciation.
You can take the original roof cost as a percentage of the entire property original cost to get an allocation of sale information for the roof.
