Which statement best describes depreciation and the factors that determine its amount?

• A. A one-time expense recorded when the asset is acquired
• B. Systematic allocation of the asset's cost over its estimated useful life; factors include cost, useful life, residual value, and depreciation method
• C. An adjustment to the asset's market value
• D. Only relevant for tax purposes and not for financial reporting

Answer: (B)

Depreciation is the systematic allocation of an asset’s cost over its estimated useful life, not a one-time charge. The amount recognized each period depends on four elements: the asset’s cost, the estimated residual (salvage) value, the expected useful life, and the depreciation method chosen. The depreciable base is typically cost minus residual value, and the method determines how that base is spread over time. For example, straight-line spreads the same amount each year, while accelerated methods front-load more expense early on, and units-of-production ties expense to actual usage. Depreciation is a noncash expense used to reflect wear, tear, and obsolescence in financial statements; changes in market value are handled separately through impairment or reevaluation if applicable.