Bills of Exchange Act 1882: Fundamental legislation governing promissory notes in England and Wales. Defines valid promissory notes and sets out rights and obligations of parties.

Law of Property Act 1925: Governs secured promissory notes and how security interests are created and enforced.

Consumer Credit Act 1974: Applies to consumer transactions, providing consumer protections and disclosure requirements for promissory notes involving individuals.

Contract Law Principles: Fundamental principles including consideration, capacity to contract, intention to create legal relations, and offer and acceptance.

Limitation Act 1980: Sets time limits for enforcement of promissory notes, generally 6 years for simple contracts.

Financial Services and Markets Act 2000: Relevant when the promissory note involves regulated financial activities.

Money Laundering Regulations 2017: Anti-money laundering requirements that may apply to the transaction.

Unfair Contract Terms Act 1977: Applies to consumer transactions or standard form contracts, ensuring fairness in contract terms.