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Useful Life of Asset — India

The period over which an asset is expected to generate economic benefit, determining the depreciation schedule. In India, useful life is governed by Schedule II of the Companies Act 2013 for book depreciation and the Income Tax Act for tax depreciation — with IND AS 16 requiring management's own assessment for IFRS-aligned reporting.

What is useful life?

An asset's useful life is the span of time over which the enterprise expects to derive economic benefit from it. This is the denominator in depreciation calculations — the total cost of the asset (less residual value) is spread over the useful life, producing the annual depreciation charge that flows through the P&L and reduces the asset's net book value on the balance sheet.

Getting useful life right matters enormously. If it is too short, depreciation is front-loaded, P&L is artificially suppressed in early years, and fully-depreciated assets remain in operational use (creating a ghost-asset problem on the balance sheet). If it is too long, the asset is still being depreciated after it has been scrapped or replaced.

Regulatory framework in India

Indian enterprises navigate three parallel frameworks for useful life:

1. Schedule II — Companies Act 2013

Schedule II prescribes useful lives for a broad range of asset categories. Companies following SLM (Straight Line Method) or WDV (Written Down Value) under the Companies Act must use these lives or justify deviations. Key lives:

  • Buildings (RCC frame): 60 years
  • Buildings (others): 30 years
  • Plant and machinery (general): 15 years
  • Computers and data processing units: 3 years
  • Servers and networks: 6 years
  • Furniture and fittings: 10 years
  • Motor vehicles (other than two-wheelers): 8 years
  • Office equipment: 5 years

2. IND AS 16 — Property, Plant and Equipment

Under IND AS 16, useful life is not prescribed by a schedule — it must reflect management's best estimate of the period over which the asset will be available for use, considering expected physical wear and tear, technical obsolescence, commercial obsolescence, and legal or similar limits. The useful life must be reviewed at each balance sheet date; if expectations differ from previous estimates, the change is accounted for as a change in accounting estimate (prospective, not retrospective).

3. Income Tax Act — Block of assets

For tax purposes, assets are grouped into blocks and depreciated at prescribed WDV rates under the Income Tax Act. Tax depreciation rates do not need to match book depreciation — most Indian enterprises maintain separate tax depreciation workings. Common tax rates: buildings (5–10%), computers and software (40%), plant and machinery (15% general, higher for specific categories).

Component accounting under IND AS 16

IND AS 16 requires component accounting for assets with parts that have significantly different useful lives. A manufacturing plant, for example, may consist of:

  • Structure — useful life 30 years
  • Electrical installation — useful life 15 years
  • HVAC system — useful life 10 years
  • Precision machinery — useful life 8 years

Each component must be depreciated separately over its own useful life. When a component is replaced (a major overhaul), the old component is derecognized and the new cost is capitalized and depreciated over the new component's life. TRAXX's Depreciation Engine supports component-level asset records with independent useful lives and depreciation methods.

FAQs

What is the useful life of an asset? +
Useful life is the period over which an asset is expected to be available for use by an enterprise — or the number of production units expected to be obtained from the asset. It determines how long the asset's cost is spread across accounting periods through depreciation. A shorter useful life = higher annual depreciation charge; a longer life = lower annual charge.
Where are useful life periods defined in India? +
Two sources: Schedule II of the Companies Act 2013 prescribes useful lives for companies following the Companies Act depreciation (SLM or WDV). IND AS 16 requires entities to determine useful life based on their own assessment of economic benefit — they are not bound by Schedule II but must justify any deviation. IT Act / Income Tax rules prescribe rates for tax depreciation (separate from book depreciation).
What are typical Schedule II useful lives for common assets? +
Buildings: 30–60 years. Plant and Machinery (general): 15 years. Computers and laptops: 3 years. Servers and networking: 6 years. Furniture and fittings: 10 years. Vehicles (motor cars): 8 years. Office equipment: 5 years. These are the default lives under Schedule II — companies may use shorter lives if actual usage pattern supports it, with appropriate disclosure.
Can a company use a different useful life than Schedule II prescribes? +
Under IND AS 16, yes — a company must use the useful life that reflects actual expected usage, which may differ from Schedule II. However, if the useful life adopted is shorter than Schedule II, the company must disclose this and justify it. If longer, auditors will scrutinize it. In practice, most Indian listed companies follow Schedule II lives for simplicity and audit comfort, unless there is clear technical justification for deviation.
What happens at the end of an asset's useful life? +
When an asset is fully depreciated (net book value = residual value), depreciation stops. The asset remains on the books at residual value. At this point, the asset management process should trigger a review: is the asset still in use? Should it be extended (re-assessed useful life under IND AS 16), scrapped, or auctioned? TRAXX flags fully-depreciated assets that are still active in the register for periodic physical verification and disposition review.

Related terms

Schedule II — Useful Life → Read definition IND AS 16 → Read definition CapEx vs OpEx Procurement → Read definition Asset Disposal Process → Read definition

Last updated: 2026-04-29

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