Companies Act 2006: Primary legislation governing corporate entities in the UK. Relevant for corporate governance principles and directors' duties, even though primarily focused on companies rather than LLCs.

Limited Liability Partnerships Act 2000: Most relevant UK equivalent to LLC legislation, providing framework for partnership arrangements with limited liability protection.

Partnership Act 1890: Foundational legislation establishing basic partnership principles that may apply to LLC operations in UK context.

Financial Services and Markets Act 2000: Regulatory framework for financial services - relevant if LLC engages in regulated financial activities.

Income Tax Act 2007: Key tax legislation governing how guaranteed payments and other income are taxed for individuals involved in the LLC.

Corporation Tax Act 2009: Tax legislation relevant for entity-level taxation and treatment of business income.

Finance Acts (Various): Annual and other Finance Acts providing specific tax treatment of guaranteed payments and ongoing tax implications for LLC members.

National Minimum Wage Act 1998: Employment legislation that may be relevant if guaranteed payments are structured similar to employment arrangements.

Employment Rights Act 1996: Framework for employment rights that could impact guaranteed payment structures and recipient protections.

UK-US Double Taxation Treaties: International agreements governing cross-border tax treatment of LLC payments and preventing double taxation between UK and US jurisdictions.