Explanation
1. Depreciation has a significant effect in determining and presenting the financial position and results of operations of an enterprise. Depreciation is charged in each accounting period by reference to the extent of the depreciable amount, irrespective of an increase in the market value of the assets.
2. Assessment of depreciation and the amount to be charged in respect thereof in an accounting period are usually based on the following three factors:
(i) historical cost or other amount substituted for the historical cost of the depreciable asset when the asset has been revalued;
(ii) expected useful life of the depreciable asset; and
(iii) estimated residual value of the depreciable asset.
3. Historical cost of a depreciable asset represents its money outlay or its equivalent in connection with its acquisition, installation and commissioning as well as for additions to or improvement thereof. The historical cost of a depreciable asset may undergo subsequent changes arising as a result of increase or decrease in long term liability on account of exchange fluctuations, price adjustments, changes in duties or similar factors.
4. The useful life of a depreciable asset is shorter than its physical life and is:
(i) pre-determined by legal or contractual limits, such as the expiry dates of related leases;
(ii) directly governed by extraction or consumption;
(iii) dependent on the extent of use and physical deterioration on account of wear and tear which again depends on operational factors, such as, the number of shifts for which the asset is to be used, repair and maintenance policy of the enterprise etc.; and
(iv) reduced by obsolescence arising from such factors as:
(a) technological changes;
(b) improvement in production methods;
(c) change in market demand for the product or service output of the asset.
(d) legal or other restrictions.
5. Determination of the useful life of a depreciable asset is a matter of estimation and is normally based on various factors including experience with similar types of assets. Such estimation is more difficult for an asset using new technology or used in the production of a new product or in the provision of a new service but is nevertheless required on some reasonable basis.
6. Any addition or extension to an existing asset which is of a capital nature and which becomes an integral part of the existing asset is depreciated over the remaining useful life of that asset. As a practical measure, however, depreciation is sometimes provided on such addition or extension at the rate which is applied to an existing asset. Any addition or extension which retains a separate identity and is capable of being used after the existing asset is disposed of, is depreciated independently on the basis of an estimate of its own useful life.
7. Determination of residual value of an asset is normally a difficult matter. If such value is considered as insignificant, it is normally regarded as nil. On the contrary, if the residual value is likely to be significant, it is estimated at the time of acquisition/installation, or at the time of subsequent revaluation of the asset. One of the bases for determining the residual value would be the realisable value of similar assets which have reached the end of their useful lives and have operated under conditions similar to those in which the asset will be used.
8. The quantum of depreciation to be provided in an accounting period involves the exercise of judgement by management in the light of technical, commercial, accounting and legal requirements and accordingly may need periodical review. If it is considered that the original estimate of useful life of an asset requires any revision, the unamortised depreciable amount of the asset is charged to revenue over the revised remaining useful life.
9. There are several methods of allocating depreciation over the useful life of the assets. Those most commonly employed in industrial and commercial enterprises are the straightline method and the reducing balance method. The management of a business selects the most appropriate method(s) based on various important factors e.g., (i) type of asset, (ii) the nature of the use of such asset and (iii) circumstances prevailing in the business. A combination of more than one method is sometimes used. In respect of depreciable assets which do not have material value, depreciation is often allocated fully in the accounting period in which they are acquired.
10. The statute governinganenterprisemay provide thebasis for computation of the depreciation. For example, the Companies Act, 1956 lays down the rates of depreciation in respect of various assets. Where the management’s estimate of the useful life of an asset of the enterprise is shorter than that envisaged under the provisions of the relevant statute, the depreciation provision is appropriately computed by applying a higher rate. If the management’s estimate of the useful life of the asset is longer than that envisaged under the statute, depreciation rate lower than that envisaged by the statute can be applied only in accordance with requirements of the statute.
11. Where depreciable assets are disposed of, discarded, demolished or destroyed, the net surplus or deficiency, if material, is disclosed separately.
12. The method of depreciation is applied consistently to provide comparability of the results of the operations of the enterprise from period to period. A change from one method of providing depreciation to another is made only if the adoption of the new method is required by statute or for compliance with an accounting standard or if it is considered that the change would result in a more appropriate preparation or presentation of the financial statements of the enterprise. When such a change in the method of depreciation is made, depreciation is recalculated in accordance with the new method from the date of the asset coming into use. The deficiency or surplus arising from retrospective recomputation of depreciation in accordance with the new method is adjusted in the accounts in the year in which the method of depreciation is changed. In case the change in the method results in deficiency in depreciation in respect of past years, the deficiency is charged in the statement of profit and loss. In case the change in the method results in surplus, the surplus is credited to the statement of profit and loss. Such a change is treated as a change in accounting policy and its effect is quantified and disclosed.
13. Where the historical cost of an asset has undergone a change due to circumstances specified in para 6 above, the depreciation on the revised unamortised depreciable amount is provided prospectively over the residual useful life of the asset.
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