IRS.gov offers federal tax form 4562 and its instructions for the current and previous years, dating back to 1969. Both documents can be downloaded or printed. This form is used for the depreciation and amortization of property used by a business or for the purpose of generating income.
Both tangible and intangible property are claimable on Form 4562. Tangible property includes vehicles, computer and other office equipment, machinery and buildings. Computer software, copyrights and patents are intangible property. Land is not considered depreciable property.
The instructions provide worksheets to aid in completing the form and explanations for acceptable depreciation calculation methods.