When we're talking about the gain or loss of the sale of an asset we need to be looking at net book value at the time of the sale. Asset disposal is the removal of a long-term asset from the company's accounting records.It is an important concept because capital assets. What are the correct journal entries for the sale of a business per the closing statement and associated closing entries for capital assets? The journal entry to dispose of fixed assets affects several balance sheet accounts and one income statement account for the gain or loss from disposal. In this article, we discuss what asset sales are, how they work and how to calculate a loss or gain because of an asset sale. A longlived asset (disposal group) should be classified as held for sale in the period in which all of the held for sale criteria are met.