For valuation of depreciable fixed assets, accumulated depreciation accounts must be established and presented as deductions of the respective assets. The depreciation of fixed assets must be presented on an annual basis.
When the depreciation of fixed assets is computed, the salvage value must be estimated. The balance after deduction of the salvage value shall be used as the basis for the computation.
If a fixed asset continues to be used after expiration of its duration limit, such asset can continue to be depreciated using the salvage value thereof.