Late Payment of Commercial Debts (Interest) Act 1998: Primary legislation governing late payments in commercial transactions, establishing statutory interest rates and defining payment terms and compensation for late payments.

The Late Payment of Commercial Debts Regulations 2013: Implements EU Directive 2011/7/EU into UK law, setting maximum payment terms and requirements for interest calculations on late payments.

Contracts (Rights of Third Parties) Act 1999: Legislation governing how third parties may enforce terms of a contract, including payment obligations that affect parties not directly involved in the contract.

Supply of Goods and Services Act 1982: Legislation setting out statutory rights and obligations in contracts for goods and services, including payment terms related to delivery and performance.

Consumer Rights Act 2015: Key consumer protection legislation that applies when one party is a consumer, ensuring fair payment terms and transparent pricing.

Unfair Contract Terms Act 1977: Legislation restricting the use of unfair payment terms and limiting the ability to exclude or restrict liability in contracts.

Money Laundering Regulations 2017: Regulations requiring proper payment verification and due diligence procedures to prevent financial crime and ensure compliance with anti-money laundering requirements.

Financial Services and Markets Act 2000: Regulatory framework for financial services in the UK, relevant when payment arrangements involve regulated financial services.

General Data Protection Regulation (GDPR) and Data Protection Act 2018: Legal framework for handling personal data, including requirements for processing and protecting payment-related personal information.