The fact that economic usefulness is eroding is unaffected by a change in the quantity of yearly depreciation recorded. It only modifies the statistics that have been reported. Depreciation is the systematic and sensible allocation of an asset's cost over its useful life in accounting.
The plant manager's suggestion of abnormal obsolescence might warrant more fast depreciation, but raising the depreciation charge would not always result in money for a replacement. It would not raise revenue; rather, it would make reported income lower than it would have been, preventing net income overstatement.
Depreciation is not recorded on the books since no assets are placed aside for the eventual replacement of depreciated assets. Fund segregation is possible, but it necessitates significant administrative intervention. It has no effect on funds unless a rise in depreciation is accompanied by an increase in the product's sales price or unless it influences management's dividend policy choice.
Normally, higher depreciation does not result in higher sales prices and, therefore, a faster "recovery" of the asset's cost because the economic circumstances in place would have allowed for this higher price regardless of the justification or explanation utilized. Without a greater depreciation charge, the price may have been raised.
A profitable company's finances grow, but they can be used to whichever purpose working capital regulation dictates. Net income + charges to operations that did not require working capital, fewer credits to operations that did not produce working capital are the measures of the rise in these funds from activities. Because net income alone does not reflect the rise in funds resulting from profitable operations, some non-accountants mistakenly believe that a fund is being established and that the amount of depreciation recorded has an impact on fund accumulation.
Acceleration of depreciation for income tax reasons falls into a somewhat distinct category since it is more than just a question of recordkeeping. Increased depreciation will tend to delay tax payments, resulting in a temporary rise in funds (although the tax liability may be the same or even higher in the long term than it would have been) and a gain to the business to the extent that the worth of the extra funds is valued.
