Write off an asset when it is determined that it is no longer useful. The journal entry is as follows: Credit (asset to be written off), Debit (accumulated depreciation), and Debit (loss on disposal).
Because the asset is no longer be used, it must be completely eliminated from the books. Crediting the asset for its total cost and debiting the accumulated depreciation on the asset remove from the books all the accounts associated with that asset. If the asset has not completely depreciated at the moment of disposal, use an additional debit to the loss on disposal account to represent fully the effects of the write-off on shareholder's equity.