http://www.legislation.gov.uk/ukpga/1979/54/section/28Sale of Goods Act 1979An Act to consolidate the law relating to the sale of goods.1980-01-31texttext/xmlenStatute Law Database2025-07-29Expert Participation2015-10-01 Part IV28Unless otherwise agreed, delivery of the goods and payment of the price are concurrent conditions, that is to say, the seller must be ready and willing to give possession of the goods to the buyer in exchange for the price and the buyer must be ready and willing to pay the price in exchange for possession of the goods.