the cost of a fixed asset is its purchase price including import duties, after subtracting any deductible trade discounts and rebates. It also includes the cost of transporting and installing the asset on-site and an estimate of the cost of dismantling and removal once it is no longer needed due to obsolescence or irreparable breakdown. Accounting treatment The primary objective of a business entity is to be profitable and increase the wealth of its owners. To do so, management must exercise due care and diligence by matching the expenses for a given period with the revenues of the same period. The period of use of revenue generating assets is usually more than a year, i.e. long term. To accurately determine the Net Income (profit) for a period, incremental depreciation of the total value of the asset must be charged against the revenue of the same period. Doing so is necessary for determining Net Revenue. Net book value of an asset is the difference between the historical cost of that asset and its associated depreciation. Under most financial accounting standards (Standard Accounting Statement (SAS) 3 and IAS 16), the value of fixed assets are recorded and reported at net book value. Also, carrying assets at net book value is the most meaningful way to capture asset values for the owners of the business and potential investors. Depreciating a fixed asset Depreciation is the expense generated by using an asset. It is the wear and tear and thus diminution in the historical value due to usage. It is also the cost of the asset less any salvage value over its estimated useful life. A fixed asset can be depreciated using the straight line method which is the most common form of depreciation. Tax depreciation is commonly calculated differently than depreciation for financial reporting. See also Bentley Infrastructure 500 Capital asset Depreciation DIRTI 5 Fixed asset turnover Fixed assets management Fixed assets register Like-kind exchange Revaluation of fixed assets References Accounting terminology