Revenue arising from the sale of goods should be recognised when all of the following criteria have been satisfied: [IAS 18.14]
the seller has transferred to the buyer the significant risks and rewards of ownership the seller retains neither continuing managerial involvement to the degree usually associated with ownership nor effective control over the goods sold the amount of revenue can be measured reliably it is probable that the economic benefits associated with the transaction will flow to the seller, and the costs incurred or to be incurred in respect of the transaction can be measured reliably