Cost segregation study should (1) classify the assets into one of the four property classes, (2) explain the rational for
the class assignment, and (3) substantiate the cost basis of each asset.
The salvage value is the estimated resale value of the asset at some time in the future when it is sold.
For tax purposes, the salvage value is assumed to be zero.
The Tax Cuts and Jobs Act.
Nonresidential real estate would have a 39–year recovery period and would be depreciated over 40 years because
only a partial year of depreciation may be taken in the first and fortieth years.
By switching to the straight–line method and depreciating the current year’s book value over the years left in the
recovery period. The switch to straight–line occurs when the depreciation calculated by the straight–line method
exceeds the depreciation calculated by the declining–balance method.
IRS Publication 946, How to Depreciate Property.
For real estate, the IRS assumes that the real estate was placed in service or disposed of in the middle of the month it
was placed in service or disposed of.
When the taxpayer places more than 40% of the year’s depreciable assetsexcluding real propertyin service during
the last quarter, the IRS assumes that the individual assets were placed in service or disposed of in the middle of the
quarter that the asset was placed in service or disposed of.
The sum of the years is 28 (7 + 6 + 5 + 4 + 3 + 2 + 1). The sum of the years may also be calculated as follows: 7(7 + 1)/2.
The depreciation rate is 5/28 (0.1786), which is calculated as follows: (7 – 3 + 1)/28