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.
It also discusses other information you need to know before you can figure depreciation under MACRS. This information includes the property's recovery class, placed in service date, and basis, as well as the applicable recovery period, convention, and depreciation method.