Bills of Exchange Act 1882: Primary legislation governing negotiable instruments in the UK, defining promissory notes, their requirements, and rules for negotiability and transfer

Law of Property Act 1925: Legislation relevant for security interests if the note is secured and sets out important registration requirements

Consumer Credit Act 1974: Applicable if the promissory note involves a consumer transaction, providing protection for consumer debtors

Companies Act 2006: Governs registration requirements at Companies House when corporate entities are involved in the promissory note

Common Law Contract Principles: Fundamental principles including offer, acceptance, consideration, and contract formation that apply to promissory notes

Stamp Act 1891: Legislation governing stamp duty requirements on written instruments including promissory notes

Finance Acts: Various Finance Acts that regulate duty payments on financial instruments and their registration