Bills of Exchange Act 1882: Fundamental legislation governing promissory notes. Defines valid promissory notes and establishes rights and obligations of parties.

Law of Property Act 1925: Governs security interests for secured notes and establishes enforcement rights.

Consumer Credit Act 1974: Applies when borrower is an individual rather than a business. Provides consumer protection and regulates credit agreements.

Financial Services and Markets Act 2000: Relevant for regulated financial instruments, transferability, and trading considerations of the note.

Common Law Principles: Governs fundamental aspects of contract formation, consideration, and capacity to contract.

Insolvency Act 1986: Critical for establishing senior status of the note and determining priority in case of insolvency.

Companies Act 2006: Relevant when corporate entities are involved, establishing corporate authority requirements.

Unfair Contract Terms Act 1977: Ensures fairness and reasonableness of contractual terms in the promissory note.