Accelerated depreciation is a taxation method that allows book depreciation to be magnified in order to depreciate sustainable energy efficiency improvement work or other types of work more quickly.
Book depreciation refers to the recognition of the permanent reduction to the value of an asset. This value is linked to the use of an asset and to the effect of time. Depreciation allows this reduction in value to be compensated by allocating a specific amount to the profits for the year.
We talk about accelerated depreciation when the level of depreciation is more advantageous, thereby allowing greater costs of depreciation over the first years following the improvement work.