Law of Property (Miscellaneous Provisions) Act 1989: Governs requirements for written documents and formal requirements for creating legally binding obligations in property and contract matters

Consumer Credit Act 1974: Regulates credit agreements and provides regulatory requirements if the promissory note could be construed as a credit arrangement

Employment Rights Act 1996: Covers protection of wages, lawful deductions from wages, and fundamental employee rights and protections

National Minimum Wage Act 1998: Ensures repayment obligations don't reduce earnings below minimum wage and maintains compliance with wage protection requirements

Limitation Act 1980: Establishes time limits for enforcement of the promissory note and relevant statute of limitations considerations

Unfair Contract Terms Act 1977: Ensures terms are fair and reasonable and provides protection against unfair contract terms in agreements

Financial Services and Markets Act 2000: Relevant if the note could be considered a regulated financial instrument under UK financial services regulation

Common Law Contract Principles: Covers fundamental principles of contract formation, doctrine of consideration, undue influence, duress, and capacity to contract

Data Protection Act 2018/GDPR: Ensures compliance with data protection requirements in handling personal information within the agreement