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.
ACRS was modified in the United States Tax Reform Act of 1986 and has been known since then as the Modified Accelerated Cost Recovery System (MACRS). MACRS is currently applied by US taxpayers to classes of assets that includes computing equipment, office furniture, automobiles, construction assets, and many others.