Bills of Exchange Act 1882: Primary legislation governing negotiable instruments including promissory notes. Defines requirements for valid promissory notes under Section 83 and sets out mandatory form and content requirements.

Law of Property (Miscellaneous Provisions) Act 1989: Relevant legislation when considering security interests if the promissory note is to be secured against any property.

Limitation Act 1980: Establishes the statutory limitation period of 6 years for enforcing simple contracts, including promissory notes.

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

Doctrine of Negotiability: Common law principle governing the transferability of negotiable instruments and the rights of subsequent holders.

Financial Services and Markets Act 2000: Regulatory framework relevant if the promissory note could be classified as a regulated financial instrument.

Consumer Credit Act 1974: Regulatory requirements applicable if the promissory note involves a consumer borrower rather than a business.

Money Laundering Regulations 2017: Compliance requirements for anti-money laundering measures when dealing with financial instruments.