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Depreciation

: 12 Tags: Accounting

Below is a table summarizing the most common depreciation methods or models used in accounting and finance.

Each method has its own formula, application, and impact on financial statements.

Depreciation Method Formula Application Advantages Disadvantages
Straight-Line (SL) \(\text{Depreciation Expense} = \frac{\text{Cost} - \text{Salvage Value}}{\text{Useful Life}}\) Evenly distributes depreciation over the asset's useful life. Simple to calculate; consistent expense recognition. May not reflect actual usage or wear and tear.
Declining Balance (DB) \(\text{Depreciation Expense} = \text{Book Value} \times \text{Depreciation Rate}\) Accelerates depreciation, with higher expenses in early years. Matches higher expenses with higher revenue in early years. More complex; may not fully depreciate the asset to salvage value.
Double Declining Balance (DDB) \(\text{Depreciation Expense} = 2 \times \text{Straight-Line Rate} \times \text{Book Value}\) A more aggressive form of declining balance depreciation. Faster write-off of asset value; useful for assets that lose value quickly. Can over-depreciate assets; requires switching to straight-line in later years.
Units of Production (UOP) \(\text{Depreciation Expense} = \frac{\text{Cost} - \text{Salvage Value}}{\text{Total Units}} \times \text{Units Produced}\) Depreciates based on actual usage or production output. Matches depreciation to actual usage; fair for machinery or vehicles. Requires tracking of usage; not suitable for all assets.
Sum-of-the-Years'-Digits (SYD) \(\text{Depreciation Expense} = \frac{\text{Remaining Life}}{\text{SYD}} \times (\text{Cost} - \text{Salvage Value})\) Accelerates depreciation, but less aggressive than declining balance methods. Front-loads depreciation; useful for tax purposes. More complex to calculate than straight-line.
MACRS (Modified Accelerated Cost Recovery System) Based on IRS tables for asset classes. Used for tax purposes in the U.S.; combines declining balance and straight-line. Maximizes tax benefits in early years. Complex; only applicable for tax reporting, not financial reporting.

References

  • https://en.wikipedia.org/wiki/Depreciation