The correct answer is B: Allocation of asset cost over time. Depreciation is an accounting method used to systematically spread the cost of a tangible asset (like machinery, vehicles, or buildings) over its estimated useful economic life. Instead of expensing the entire purchase price of a valuable asset in the year it is acquired, depreciation allows a portion of the asset's cost to be recognized as an expense each accounting period. This process helps to match the expense of using the asset with the revenues it generates, providing a more accurate representation of a company's profitability and asset value over time. It accounts for the wear and tear, obsolescence, or consumption of the asset.
A: Increase in asset value is incorrect. Depreciation specifically reflects a decrease in an asset's book value due to its usage and aging, not an increase. An increase in asset value is generally referred to as appreciation.
C: Profit earned is incorrect. Profit earned, or net income, is the result after all revenues and expenses (including depreciation) have been accounted for. Depreciation itself is an expense, a cost of doing business, not a profit.
D: Tax paid is incorrect. Tax paid refers to the actual amount of money a company remits to the government for taxes. While depreciation is a deductible expense that reduces a company's taxable income, thereby influencing the amount of tax paid, it is not the tax paid itself. It is an expense that impacts the calculation of tax liability.