Transparency Report 2025
Audit is built on trust. In Luxembourg, our firm has been earning that trust for 75 years. On behalf of Deloitte Audit, société à responsabilité limitée, an approved audit firm in Luxembourg (cabinet de révision agréé), we present our 16th annual Transparency Report. It covers the financial year ended 31 May 2025 and has been prepared pursuant to Article 13 of Regulation (EU) No 537/2014 of the European Parliament and of the Council of 16 April 2014 on specific requirements regarding the statutory audit of public-interest entities and in accordance with the Luxembourg Law of 23 July 2016 concerning the audit profession, as amended.
Our purpose is clear: to make an impact that matters. It has guided Deloitte for generations and continues to define how we serve today. This year marks 75 years since we first opened our doors in Luxembourg. It is a milestone that reflects the dedication of our people, and the trust placed in us by clients and stakeholders. Our Audit & Assurance practice continues to achieve double-digit growth, but numbers alone do not define us. Our true measure is the confidence we inspire, the trust we uphold, and the contribution we make across industries and markets.
As the responsibilities of Réviseurs d’entreprises evolve, so does the regulatory context in which we operate. The European Union has recently amended the Corporate Sustainability Reporting Directive to extend deadlines for Wave 2 and Wave 3 companies by two years. The February 2025 Omnibus simplification package has also raised the thresholds for inclusion, significantly narrowing the scope of mandatory reporting. At the same time, a delegated update to the European Sustainability Reporting Standards provides relief for Wave 1 reporters, temporarily deferring selected disclosure requirements. These changes bring welcome clarity and a more measured pace for implementation, yet the underlying objective remains unchanged: to enhance the transparency and quality of sustainability information so that risks, impacts and opportunities can be understood in full, and economies can become stronger and more resource-efficient.
The rise of AI and GenAI is redefining what is possible in our profession. In Audit & Assurance, these technologies are not novelties but catalysts for deeper insight, greater precision, and faster delivery. By embedding them into our methodology, we equip our teams to meet rising expectations while maintaining the highest standards of quality and reliability. Combined with our multidisciplinary model, this keeps us at the forefront of our profession, shaping its future with integrity and excellence.
This Transparency Report offers more than a statement of compliance. It is a clear view of our structure, governance and the principles that guide our work: ethics, quality, and a steadfast commitment to the public interest.
Marking 75 years in Luxembourg is not about looking back. It is about carrying forward the values that have shaped our journey and ensuring they continue to guide us in the years ahead. Progress is built together with our people, our clients, and the communities we serve. That is why our dedication to advancing quality in everything we do remains as strong as ever. The present Transparency Report is issued in Luxembourg on 26 September 2025.
