documentation. 1  the use of documentary evidence. 2  a furnishing with documents, as to substantiate a claim or the data in a book or article. 3  Computers.
1 Regular depreciation: Most business equipment is depreciable under MACRS depreciation (Modified Accelerated Cost Recovery System-pronounced MAKERS). 2  MACRS includes an accelerated method, which produces higher deductions in the early years of the property's recovery period than the MACRS straight-line method.
Depreciable assets, except for buildings, fall within a three-year, five-year, seven-year, 10-year, 15-year, or 20-year recovery period under the general depreciation system (GDS). However, the actual recovery period shown in the MACRS depreciation tables show a recovery period of one additional year.This is because of the convention rules. Under the half-year convention you may only deduct 50% of the first year's depreciation.f you look at the MACRS table (shown below) for 5-year property (i.e. computers), for example, you'll notice that the span of years for the recovery period is six years.