Annuity method to calculate depreciation posted by
Rajani Sharma
Explain annuity method of calculating depreciation.
In this method, the purchase of an asset is considered an investment of capital
on which a certain rate of interest is earned. The cost of the asset and the
interest are written down annually by equal instalments until the book value of
the asset is reduced to nil. The annual charge by way of depreciation is found
out from the annuity tables. The annual charge for depreciation will be
credited to asset account and debited to depreciation account while the
interest will be debited to asset account and credited to interest account. The
disadvantage of this method is that it is a complicated method to charge
depreciation. Secondly, the burden on Profit and Loss account goes on
increasing with the passage of time and the amount of interest goes on
diminishing as years pass by. Thus this method is best suited to those assets
which require considerable investment and don’t require frequent additions.
Explain joint factor rate method of calculating depreciation.
This method is also used to calculate amount of depreciation. In this method the
depreciation is provided partly at a fixed rate on time basis and partly at a
variable rate on usage basis.
