LEXeFISCAL LLP was co-founded on 1 September 2010 by Dr Clifford J. Frank and Marianna Penna with a single purpose: to provide the highest calibre of integrated tax and accounting advisory services to ultra-high-net-worth individuals, corporate clients, and enterprises whose affairs are too complex and too important to be entrusted to generalists. Headquartered at 33 Cavendish Square, Marylebone, London, and with an established presence in Milan, we serve clients across the United Kingdom, continental Europe, the Americas, Africa, and beyond.
LEXeFISCAL regularly publishes thought leadership on UK and international tax developments, with articles featured on the British Polish Chamber of Commerce (BPCC)—including ‘The Wealth Exodus: The UK’s Tax Gamble and the Non-Dom Dilemma’ (April 2025) and ‘Business Disposal Relief: Traps for the Unaware’ (March 2026)—as well as contributions to the Private Client Dining Club (PCD). These external publications extend the firm’s specialist voice into key professional networks that support its most valuable referral relationships.
LEXeFISCAL combines LEX — the Latin for law — with FISCAL. The conjunction is deliberate: law and tax are not separate disciplines at this firm but two dimensions of a single analytical process. Our logo, an unbalanced scale, reflects precisely what we do: we bring balance where there is imbalance and clarity where there is complexity.
To remove the burden of legal and fiscal complexity from those who create, grow, and protect wealth — guiding clients to comply with their obligations, prosper in their endeavours, and preserve their financial interests for the generations that follow.
To be the pre-eminent specialist boutique in international tax law: recognised for the quality of its thinking, the calibre of its people, and the outcomes it achieves. We maintain the partner-led, bespoke model that has defined our reputation since inception.
LEXeFISCAL LLP is authorised and regulated by the Institute of Chartered Accountants in England and Wales and recognised by the Association of Taxation Technicians (ATT), practising as Chartered Accountants and specialists in tax and accounting. The firm is registered as a Trust or Company Service Provider under the Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017. Non-reserved legal services are provided by our associated company, LEXFISCAL Ltd, which is fully insured for all non-reserved legal activities it undertakes.
