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depriciation

Ranjeet kumar sahu (CWA Qualified/CA/CS) (186 Points)

02 October 2009

can any one tell wat is double decline depriciation method???

needs ur quick response

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CA LOVELY ARORA (C.A. B.Com (H) Graduate) (2151 Points)
Replied 02 October 2009

Declining-Balance Method

Depreciation methods that provide for a higher depreciation charge in the first year of an asset's life and gradually decreasing charges in subsequent years are called accelerated depreciation methods. This may be a more realistic reflection of an asset's actual expected benefit from the use of the asset: many assets are most useful when they are new. One popular accelerated method is the declining-balance method. Under this method the Book Value is multiplied by a fixed rate.

Annual Depreciation = Depreciation Rate * Book Value at Beginning of Year

The most common rate used is double the straight-line rate. For this reason, this technique is referred to as the double-declining-balance method. To illustrate, suppose a business has an asset with $1,000 Original Cost, $100 Salvage Value, and 5 years useful life. First, calculate straight-line depreciation rate. Since the asset has 5 years useful life, the straight-line depreciation rate equals (100% / 5) 20% per year. With double-declining-balance method, as the name suggests, double that rate, or 40% depreciation rate is used.

The table below illustrates the double-declining-balance method of depreciation. Book Value at the beginning of the first year of depreciation is the Original Cost of the asset. At any time Book Value equals Original Cost minus Accumulated Depreciation.

Book Value = Original Cost - Accumulated Depreciation

Book Value at the end of year becomes Book Value at the beginning of next year. The asset is depreciated until the Book Value equals Salvage Value, or Scrap Value.

Book Value - Beginning of Year	Depreciation Rate	Depreciation Expense	Accumulated Depreciation	Book Value - End of Year
$1,000 (Original Cost)	40%	$400	$400	$600
$600	40%	$240	$640	$360
$360	40%	$144	$784	$216
$216	40%	$86.40	$870.40	$129.60
$129.60	$129.60 - $100	$29.60	$900	$100 (Scrap Value)

The Salvage Value is not considered in determining the annual depreciation, but the Book Value of the asset being depreciated is never brought below its Salvage Value, regardless of the method used. The process continues until the Salvage Value, or the end of the asset's useful life, is reached. In the last year of depreciation a subtraction might be needed in order to prevent Book Value from falling below estimated Scrap Value.

Since declining-balance depreciation doesn't always depreciate an asset fully by its end of life, some methods also compute a straight-line depreciation each year, and apply the greater of the two. This has the effect of converting from declining-balance depreciation to straight-line depreciation at a midpoint in the asset's life.

Source : Wikipedia.