[20200624]IF11187_合格改良房地产的税收折旧：现状和立法历史 .pdf

https:/crsreports.congress.gov Updated June 24, 2020Tax Depreciation of Qualified Improvement Property: Current Status and Legislative History The federal income tax allows companies to deduct the ordinary and necessary expenses they incur in generating taxable income. These expenses include the cost of assets whose value lasts beyond the year when they are first used, such as machinery, motor vehicles, and factory buildings. The proper approach to recovering the cost of such assets is to deduct amounts over time that reflect the actual decline in their value, until the original cost has been recovered. This decline in value is known as depreciation. Deductions for depreciation usually are taken over three or more years. Depreciation based on the actual decline in the value of an asset is known as economic depreciation. An advantage of economic depreciation is that it fosters neutrality in an income taxs impact on the returns to investment in a range of depreciable assets. For several reasons (including a desire to simplify business tax accounting), many countries employ systems for tax depreciation that deviate from economic depreciation. Depreciation of Tangible Assets under Cur