Profit Measurement and Depreciation

Depreciation: Definition and Purpose

Depreciation is a fundamental concept in financial accounting, representing the allocation of the cost (or fair value) of a non-current asset over its useful life. This process reflects the portion of the asset consumed in generating revenue during a specific period.

• Depreciation applies to tangible non-current assets (e.g., property, plant, equipment) and intangible assets (e.g., licenses, patents), though for intangibles, the term amortisation is used.

• Depreciation is based on management's estimates of the asset's economic benefits consumed during the period.

• Some assets, such as freehold land and acquired goodwill, are not depreciated due to their perpetual useful lives.

• Depreciation is a deferred expense: cash is paid upfront, but the expense is recognized over time as the asset is used.

• The depreciation charge appears as an expense on the income statement and reduces the asset's carrying amount on the balance sheet.

Calculating Depreciation

Key Factors in Depreciation Calculation

The calculation of depreciation expense depends on four main factors:

• Cost (or Fair Value): The initial amount paid or market value of the asset.

• Useful Life: The expected period over which the asset will be productive for the entity.

• Estimated Residual Value: The expected value of the asset at the end of its useful life.

• Depreciation Method: The approach used to allocate the asset's cost over its useful life.

Asset Cost Determination

The total cost of an asset includes all expenses necessary to bring it to its required location and make it ready for use.

• Includes delivery, installation, legal costs, and improvements or alterations for business use.

• Costs not directly attributable (e.g., petrol, registration) are expensed as incurred.

• Trade-in values are not included in the asset's cost; they affect the amount outstanding, not the recorded cost.

• Improvements and integral costs (e.g., alloy wheels, sunroof) are capitalized.

• Fair Value: The price obtainable in an arm’s length transaction; used for revalued assets if reliably measurable.

Example: For a car, the total acquisition cost includes purchase price ($48,000), delivery ($1,000), alloy wheels ($1,320), sunroof ($400), and plates ($400), totaling $51,120. Petrol ($60) and registration ($1,000) are operating costs.

Useful Life of the Asset

Non-current assets have three key lifespans:

• Physical Life: Duration the asset can function before wearing out.

• Economic Life: Period during which the asset remains commercially viable; often shorter than physical life.

• Useful Life: For depreciation, based on economic life, reflecting potential obsolescence or loss of competitiveness.

Estimating useful life is complex due to unpredictable technological changes and consumer preferences.

Estimated Residual Value

Residual value is the expected payment received when disposing of a non-current asset.

• Depreciable Amount = Cost − Residual Value

• Estimation relies on past experience with similar asset disposals.

Depreciation Methods

Depreciation allocates the depreciable amount (cost or fair value minus residual value) over the asset's useful life. The main methods are:

• Straight-Line Method: Allocates the depreciable amount equally across each year.

• Accelerated Methods: Assign higher depreciation in early years, lower in later years (e.g., reducing-balance method).

• Units of Production Method: Bases depreciation on actual usage or output.

Straight-Line Depreciation Formula

The annual depreciation expense is calculated as:

Example: Machine cost Annual depreciation = per year.

Reducing-Balance (Declining-Balance) Method

This method applies a fixed percentage to the written-down value each year:

• Where is the depreciation percentage, is useful life in years, is residual value, is cost.

• Depreciation expense is higher in early years, lower in later years.

Example: Using a 60% rate on a machine costing Year 2: Written-down value decreases rapidly at first, then more slowly.

Units of Production Method

Depreciation is based on actual usage (e.g., kilometers traveled, units produced), aligning expense with asset output.

Impact of Depreciation Method on Profit

Profit Patterns

• Straight-line method produces constant annual profit due to consistent depreciation expense.

• Reducing-balance method results in variable profits: net loss in early years, increasing profits as depreciation decreases.

• Total profit over the asset's life is the same for both methods; only the timing of expense recognition differs.

• In practice, multiple assets at different stages average out depreciation charges across years.

Selecting a Depreciation Method

Factors Influencing Method Choice

• Method should reflect how the asset's economic benefits are consumed.

• Straight-line is suitable for assets with constant benefits (e.g., buildings).

• Reducing-balance is appropriate for assets with declining efficiency (e.g., machinery).

• Units of production is used when depreciation is linked to usage or output.

• If benefit pattern is uncertain, straight-line is typically used.

• International standards require annual review of useful life, method, and residual value, with adjustments as needed.

• For intangible assets with finite lives, straight-line must be used if consumption pattern is unclear.

• Accounting standards emphasize transparency, comparability, and alignment with benefit pattern, not specific methods.

Impairment and Depreciation

Impairment Testing

• All non-current assets can undergo impairment tests to determine if carrying amount exceeds recoverable amount.

• If impaired, carrying amount is reduced to recoverable amount.

• Future depreciation is calculated using the impaired value, not original carrying amount.

Depreciation and Asset Replacement

Purpose and Implications

• Depreciation does not provide funds for asset replacement; it allocates cost over useful life.

• Depreciation is essential for accurate profit calculation; omitting it distorts financial performance.

• Asset replacement decisions are unrelated to depreciation charges; retained amounts may be invested elsewhere.

Depreciation and Judgement

Estimation and Impact

• Significant judgement is required in estimating residual value, useful life, and selecting method.

• Different judgements affect depreciation expense and reported profits, impacting financial statements.

• Estimation errors are corrected in the asset's final year as gains or losses on disposal.

Depreciation Calculation Activity

Straight-Line Depreciation Examples

• If residual value is \frac{40,000 - 8,000}{4} = 8,000.

• If residual value is \frac{40,000 - 0}{4} = 10,000.

Asset Disposal Adjustments

• If actual sale value differs from estimated residual value:

  • Sale for less: record "loss (deficit) on sale of non-current asset"

  • Sale for more: record "profit (surplus) on sale of non-current asset"

  • Adjustments are included in depreciation expense for the disposal period.

Factors Influencing Depreciation Policy

Key Considerations

• Expected useful life and usage pattern

• Estimated residual value

• Technological changes and obsolescence

• Regulatory requirements

• Maintenance and repair costs

• Market conditions affecting resale value

Summary Table: Depreciation Methods Comparison