Bills of Exchange Act 1882: Fundamental legislation governing promissory notes in England and Wales. Defines valid promissory notes and sets out formal requirements for enforceability.

Law of Property Act 1925: Relevant for promissory notes related to real property transactions and understanding security interests.

Consumer Credit Act 1974: Applicable if the promissory note involves a consumer transaction. Provides additional protections for consumers.

Limitation Act 1980: Sets time limits for enforcing the promissory note, generally 6 years for simple contracts.

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

Doctrine of Notice: Common law principle particularly relevant for the assignability of the promissory note.

Money Laundering Regulations 2017: Regulations that may be applicable depending on the transaction context and parties involved.

Financial Services and Markets Act 2000: Relevant if the promissory note could be classified as a financial instrument under financial services regulations.