• More than 180 tax professionals from 49 countries gather at RSM Global Tax Conference to address the evolving future of international tax.
• Experts examine the complexities behind OECD’s Pillar 2 framework, its implementation and how businesses are navigating these challenges.
• RSM’s growing global tax practice focuses on supporting clients to navigate the intricacies of global tax reform.

RSM, the leading global provider of assurance, tax and consulting services to middle-market businesses, hosted its latest Global Tax Conference in Amsterdam, uniting the organisation’s tax experts from across 49 countries.

The event followed a strong year for RSM’s global tax practice, which reported an 11% increase in annual tax revenues in the last financial year.

The three-day conference, held under the theme “One RSM”, underscored the global organisation’s commitment to collaboration and knowledge-sharing across borders. Discussions centred on some of the most pressing issues shaping global tax policy.

These include the implementation of the OECD’s Pillar 2 framework, within which the adoption of the Subject to Tax Rule (STTR) by developing countries, and the readiness of businesses to manage increased compliance obligations and higher tax liabilities under an evolving global framework.

Commenting on the complexities behind Pillar 2’s implementation, Juan Dosal, Director at RSM in Netherlands, said: “As countries adopt varying interpretations and timelines for Pillar 2, multinational enterprises (MNEs) face significant compliance complexities, increased audit scrutiny, and the risk of double taxation.

“Some jurisdictions may delay implementation or introduce deviations from the OECD framework, creating a patchwork of rules that escalates operational costs and complicates tax planning. To navigate this, MNEs are centralising their Pillar 2 compliance strategies, leveraging advanced technology for real-time reporting, and proactively engaging with tax authorities to resolve ambiguities.

“While divergence in national policies raises concerns about short-term tax competition, there is growing evidence of a shift toward long-term global alignment. Initiatives like the EU’s Directive on Administrative Cooperation (DAC9)—which introduces standardised reporting and central filing for MNEs by December 2025—are enhancing data-sharing and reducing administrative burdens.”

Specialist breakout sessions led by RSM’s global tax experts delved into technical areas such as mergers and acquisitions, transfer pricing and global indirect tax. Delegates also benefited from forward-looking analysis of the developments expected to define the tax landscape in 2025, with a focus on equipping businesses with the insight needed to navigate an increasingly complex regulatory environment. 

Rudolf Winkenius, Global Tax leader at RSM International, said: “The tax landscape is shifting rapidly and with artificial intelligence starting to alter the role that humans play in the advisory process, businesses need guidance they can trust. RSM’s Global Tax Conference highlights how, by sharing our insights and experience across borders, we continue to support clients navigating the intricacies of global tax reform, from Pillar 2 to STTR and beyond.”

E.J. Nedder, Chief Executive Officer at RSM International, said: “The Global Tax Conference is a powerful opportunity for RSM to unite our global community and leverage our brand, expertise and vision. This enables us to continually strengthen our ability to deliver consistent, high-quality experiences for both our people and our clients.

“This conference is a celebration of collaboration, where innovation drives progress and enhances the value we create. ‘One RSM’ is more than just a theme – it reflects our commitment to shared success and our unwavering dedication to working together as one.”