Evaluating biological assets At the annual accounts or at the beginning of the year, the biological assets must be evaluated at their fair value minus point-of-sale expenses. Although, if on the initial estimation, the fair value cannot be estimated realistically, the biological asset must be estimated at its costs, minus collected amortization and any depreciation collected loss. Once the fair value becomes realistic, the asset must be estimated at its fair value, minus the point-of-sale costs. If there is an active market for a certain asset or agricultural produce, the quote on that market is actually an appropriate basis for estimating the assets’ fair value. If there is no such market, the following criteria are used for the fair value estimation: