Book depreciation refers to the method that accountants and businesses use to systematically allocate the cost of tangible assets over their useful lives.
Double Declining Balance (DDB) is an accelerated method of depreciation used for tax purposes, applying twice the straight-line depreciation rate to the remaining book value of an asset.
The Sum-of-Years'-Digits (SYD) depreciation method is a technique used in accounting to allocate the cost of an asset over its useful life in an accelerated manner. This method results in higher depreciation expenses in the earlier years and lower expenses in the later years.
