Cyril Maucour

Maître Cyril Maucour is the founding partner of AlterTax Avocats, a Paris-based tax law firm he leads at the Paris Bar. At the Corporate INTL Global Awards 2025, AlterTax was recognised as International Tax Law Firm of the Year in France, an award that reflects the firm's specialist focus on strategic tax counsel and its capacity to advise clients on complex cross-border fiscal matters.

Mr Maucour brings more than twenty-five years of experience in tax law and financial management, advising both individuals and businesses. He founded AlterTax to offer a dedicated tax practice built on the twin values of excellence and integrity, and he is described as combining technical and creative approaches to solving the fiscal challenges his clients face. That blend of rigour and inventiveness is well suited to international tax work, where the correct answer is rarely obvious and where careful structuring can make a decisive difference to the outcome of a transaction or investment.

The firm advises a wide spectrum of clients, from private individuals and start-ups to small and medium-sized enterprises, mid-market companies and large corporations. Its core competencies are firmly rooted in the international dimension of taxation. AlterTax structures mergers and acquisitions for tax efficiency, manages international flows of funds, and advises on transfer pricing, the discipline that governs how related companies in different jurisdictions price the goods, services and intellectual property they exchange. It also handles tax audits and dispute resolution, advises on innovation and research tax credits, and provides ongoing regulatory compliance and monitoring, giving clients a single point of contact for the full range of their tax needs.

International tax is an area in which the interaction between national rules, bilateral treaties and evolving global standards creates both risk and opportunity. Cross-border groups must manage their affairs in a way that is efficient, defensible and compliant across every jurisdiction in which they operate, while remaining alert to the increasing scrutiny that tax authorities apply to international structures. AlterTax's emphasis on M&A structuring, fund flows and transfer pricing places it precisely at this frontier, and its willingness to represent clients in tax disputes across jurisdictions means it can support them not only in planning but also when their arrangements are challenged.

The firm distinguishes itself through a bilingual French and English team, a reputation for responsiveness, and a deliberate embrace of technology, including artificial intelligence and legal-technology tools, to enhance the quality and efficiency of its service. This forward-looking outlook, combined with Mr Maucour's long experience, allows AlterTax to pair the personal attention of a boutique with a modern, internationally oriented approach to tax practice. For clients accustomed to working across borders, the ability to receive sophisticated advice delivered clearly and promptly in both languages is a meaningful advantage.

Through AlterTax Avocats, Cyril Maucour has created a practice that concentrates on the strategic and international dimensions of taxation, serving a diverse clientele with a consistent commitment to excellence and integrity. The Corporate INTL Global Awards 2025 recognition as International Tax Law Firm of the Year in France affirms the firm's specialist standing and the confidence it inspires among the businesses and individuals it advises. For those seeking to structure transactions, manage cross-border tax exposure or defend their position before the tax authorities, AlterTax offers experienced, technically creative and internationally minded counsel led by one of the field's seasoned practitioners.