London · Global Network
World Tax Lawyers
A network of the world's leading tax lawyers — convened by invitation, organised by jurisdiction, distinguished by standing.
Doctoral-level expertise. Global reach. One network — built for the era of Complexity.
Our Approach
World Tax Lawyers is a new kind of global network. Built from the best, for an era of complexity and technology.
If the greatest minds in international tax can advise you, why settle for less?
The world is changing. Technology now allows the greatest minds to collaborate across borders with a speed and coordination that was unthinkable a few years ago. Organisations themselves are evolving — from pyramids to diamonds, from hierarchies of leverage to networks of expertise. The constraints that once forced clients to choose between depth and reach no longer apply.
We are an invitation-only, independent, entirely PhD-level organisation — built around the people who actually shape international tax, including a former head of the OECD's tax work.
We are not another global law firm. We are not another global accounting firm. We are a network of independent experts working together — each chosen for academic rigour, published scholarship, and senior practical experience. To engage us is to access the collective intellect of specialists who have written the rules, trained the regulators, and argued the leading cases.
At a Glance
Founded by former head of the OECD
Worldwide Reach
All our members are PhD Level or PhD Cand. or Equivalent
Published Papers
Four pillars. One network.
International Tax Structuring & Transfer Pricing
Advisory where others stop, we go further. Our PhD level members have unique qualifications and experience. The questions clients bring us are rarely the ones that have a clean answer in a textbook. That is precisely the work we are built for.
Learn moreTax Litigation & Dispute Resolution
Representation in tax audits, appeals, and international arbitration. Expert witness testimony and mutual agreement procedure (MAP) support — trusted by governments and corporations alike.
Learn moreGloBE Advisory
Impact assessment, safe-harbour analysis, group restructuring, and jurisdiction-by-jurisdiction implementation roadmaps — from PhD level people.
Learn moreWTL International Tax Centre
Our fully online International Tax Centre runs different courses including the CIOT-accredited course on Pillar Two. Academic mandate, working papers, and summits bringing together leading universities, and leading practitioners.
Learn more
Analysis
Twelve months in, the first wave of European Pillar Two adopters have exposed both the strength of the GloBE framework and its sharpest edges. A field report from the WTL Council.
Apr 2026
Analysis
The OECD's substance-over-form revolution has reshaped transfer pricing analysis. Our members set out a practical framework for groups facing audit.
Apr 2026
Press
The WTL Pillar Two & Tax Association today announces its flagship training programme, delivered in partnership with the Chartered Institute of Taxation.
Mar 2026