Poor depreciation techniques can distort accounts
The short life-span and upgradeability of many IT assets complicate the
otherwise fairly simple concept of depreciation. In this article, Michael
Blackstaff explains the pros and cons of different depreciation methods.
Take any dozen organizations and you will find as many different approaches
to the depreciation of IT assets. Some methods cause an artificially high or
low charge to the profit and loss account and to budgets in the year of
acquisition.
Some approaches to the depreciation of upgrades have the effect of causing
depreciation 'peaks', either in the middle or at the end of life of the
upgradeable range.
Depreciation is an accounting technique for charging the cost of a fixedasset as an expense to the profit and loss accounts of the years that benefit
from its use. The expense reduces both the profit and the book value of theasset.
When the asset is eventually sold, the proceeds of sale are deducted from
its book value. Any remaining amount is charged to the profit and loss account
as a loss or (very rarely) profit on disposal.
Depreciation is governed by accounting standards. The gist of the rules is
that the cost of an asset, less its expected residual value, should be
depreciated over its expected useful economic life.
The standards do not require any particular method of depreciation to be
adopted. This, and the estimated life of the asset, is left to be determined by
the business person.
The 'straight line' method charges the cost of the asset, less any expected
proceeds of sale, in equal amounts over the asset's expected useful economic
life.
It is easy to use, and reflects the fact that the usefulness of most assets
is much the same for each year of their economic lives. Its main disadvantage
is that it does not usually reflect the true decline in market value of an
asset over its life.
Although the book value of assets does not have slavishly to reflect their
market value, any significant difference between the two leads to a 'loss on
disposal' when the asset is disposed of (see above).
The straight-line method, combined with a frequent tendency to overestimate
asset life, makes this a common problem. However, it has the merit of
simplicity, and despite its drawbacks, the majority of businesses, at least in
the UK, use straight-line depreciation.
Reducing balance depreciation
Using this approach, a fixed percentage rate, for example 40%, is charged
as depreciation each year on the reducing balance. This method reflects more
closely the decline in market value of most assets, and is also easy enough to
use.
Its main problem is the fact that it results in a higher charge in the
first year than the straight-line method. A higher charge to the profit and
loss account means less profit, and a higher charge against a departmental
budget means less money for other things.
However, the higher the depreciation charge early in an asset's life, the
less likely is a substantial loss on eventual disposal.
Frequency of depreciation charge
Most companies charge depreciation monthly from the date of acquisition of
an asset, or sometimes from the date of first productive use. Some, however,
still adopt the approach of charging a full year's depreciation in the
accounting year of acquisition, regardless of when in that year they are
acquired.
This may be fine for assets having a long life of, say, 20 years or more,
but many of today's IT assets have very short lives in some companies.
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