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.
4 of these MACRS (Modified Accelerated Cost Recovery System) property classes are within the scope of this site; 5 year property, 7 year property, residential rental property, and nonresidential real property. The length of time over which an asset is depreciated is called its depreciable life.