Accounting & Bookkeeping

What is Depreciation Methods?

The systematic approaches used to allocate the cost of a tangible asset over its useful life.

How It Works

Depreciation methods determine how quickly an asset's cost is expensed. The choice affects reported profits, tax liability, and asset values on the balance sheet. Main methods: Straight-Line (equal annual amount), Written-Down Value/Declining Balance (higher early depreciation), Units of Production (based on actual usage), and Sum-of-Years-Digits (accelerated). India's Companies Act prescribes useful lives and allows SLM or WDV. Income Tax Act mandates WDV with specified rates. The method chosen should reflect the pattern in which the asset's economic benefits are consumed.

Formula

SLM: Annual Depreciation = (Cost – Salvage Value) ÷ Useful Life | WDV: Depreciation = Book Value × Rate%

Real-World Example

Machine cost: ₹10,00,000, Salvage: ₹1,00,000, Life: 5 years. SLM: ₹1,80,000/year (equal). WDV at 40%: Year 1: ₹4,00,000, Year 2: ₹2,40,000, Year 3: ₹1,44,000 (decreasing). SLM gives stable profits; WDV gives higher early deductions (better for tax planning).

Why It Matters

1

Ensures accurate financial reporting and record-keeping

2

Helps maintain regulatory and tax compliance

3

Enables better-informed business decisions

4

Improves operational efficiency and cash flow management

Frequently Asked Questions

Which depreciation method is best for tax purposes in India?

Written-Down Value (WDV) is mandatory under the Income Tax Act (Section 32) for computing taxable income. WDV gives higher depreciation in early years, reducing tax liability upfront. However, for financial reporting under Companies Act, you can choose SLM or WDV based on the asset's usage pattern.

Can a company change its depreciation method?

Yes, but it's treated as a change in accounting estimate under Ind AS 8. The change must be justified (e.g., changed usage pattern), applied prospectively (not retrospectively), and disclosed in financial statements with the impact quantified.

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