Sale of Goods Act 1979: Primary legislation governing sale of goods contracts, defining rights and obligations of buyers and sellers including title, description, quality, and fitness for purpose

Law of Property (Miscellaneous Provisions) Act 1989: Governs formalities for creation and transfer of interests in property and requirements for contracts

Unfair Contract Terms Act 1977: Regulates contracts by restricting how far civil liability for breach of contract can be avoided using contract terms

Consumer Rights Act 2015: Main consumer protection legislation, applying when one party is a consumer, covering quality rights, unfair terms, and remedies

Consumer Protection from Unfair Trading Regulations 2008: Prohibits unfair commercial practices between traders and consumers, including misleading actions and aggressive practices

Consumer Contracts Regulations 2013: Provides rules for distance selling and off-premises contracts, including cancellation rights and information requirements

Late Payment of Commercial Debts (Interest) Act 1998: Provides for statutory interest on late payments in commercial transactions

Financial Services and Markets Act 2000: Regulates financial services industry and financial products, relevant if agreement involves financial services

Value Added Tax Act 1994: Primary legislation for VAT, crucial for determining tax treatment of deferred payments and goods/services

Insolvency Act 1986: Contains provisions relevant to creditor rights and transaction validity in case of insolvency

Companies Act 2006: Primary legislation governing company operations, relevant when parties are corporate entities

Limitation Act 1980: Sets statutory time limits for bringing legal claims relating to contracts and other civil matters