The selling price is direct from your settlement sheet. The underlying assets sold may have a current value of zero if fully depreciated.Fixed Assets: How to record the disposal of assets? The equipment sold is used. Asset disposal is the removal of a long-term asset from the company's accounting records. It is an important concept because capital assets. The certification of origin may cover a single entry or multiple entries in a period not to exceed 12 months. Review of the list of available GST tax codes in the business system for sales. Start out with crediting the original purchase price. Credit improvements if you capitalized these.