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Scientific Programme

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Event details

Congress IFA 2025 LISBON
Date 5-9 OCTOBER 2025

Scientific Programme


Main subjects

Seminar topics

Chair: Prof. Dr. Joachim Englisch
Secretary: Dr. Magdalena Schwarz

Speakers:
Barbara Angus (USA)
María José Garde Garde (Spain)
James Parent (Switzerland)
Thomas Quatrevalet (France)
John Peterson (OECD)
Juan Carlos Pérez Peña (Mexico)

Seminar A provides insights into the state of play of Pillar Two implementation, regarding both the substantive rules and related procedural measures. In this context, the interaction between international, regional and national standard setting and rulemaking is analyzed. The panel will furthermore discuss challenges of compliance and administration, with respect to both, data point gathering and legal issues. Implications of any eventual reconciliation between the GloBE rules and the US GILTI and CAMT regimes will be analyzed. Finally, the broader implications of Pillar Two implications for CIT systems and targeted anti-avoidance regimes are discussed. Where and to what extent would “decluttering” be appropriate?

Chair: Prof. Andrés Báez Moreno (Germany/Spain)

Secretary:
Paula Benéitez (Spain)

Confirmed Speakers:

Mónica Bolaños (Colombia)
Marcos Catão (Brazil)
Prof. Xavier Oberson (Switzerland)
Prof. Ole Gjems-Onstad (Norway)
Prof. Dr. Roland Ismer (Germany)


This seminar will explore the resurgence of wealth taxation, focusing on comparative experiences, practical challenges, and key legal controversies that matter most to tax practitioners. Featuring leading experts across jurisdictions with experience on wealth taxation, the session will examine the design and implementation of wealth taxes, anti-avoidance strategies, and the constitutional and cross-border legal issues that shape their application, drawing on real-world examples and recent judicial decisions from across the globe.

Chair:
Philippe Malherbe (Belgium)


Secretary:
David Tipping (UK)

Speakers:
Ricardo Palma Borges (Portugal)
Prof. Amparo Grau (Spain)
Prof. Dr. René Matteotti (Switzerland)
David Pitaro (Italy)
Gabriela Rigoni (Argentina)

In principle, tax avoidance is lawful, whilst tax evasion is a criminal offence, and aggressive tax planning is in the grey zone.

By “intermediaries” are meant notably advisors of various regulated or unregulated professions like lawyers, accountants, tax advisers, but also, depending on the circumstances, promoters of given schemes or brokers or nominees of parties for various transactions.

Intermediaries may incur various types of liabilities, notably for avoided taxes, and professional or criminal sanctions.

How can those liabilities and sanctions be avoided? What is the difference between explaining the law and inducing its violation?

Chair: Gabrielle Galdino-Glaeser
Secretary: Rupal Maheshwari (India)

Confirmed Speakers:
Alex Miguel Cordova (Peru)
Prof. Peter Hongler (Switzerland)
Carla Maldonado (Chile) 
Nathalie Mognetti (France)
Mr. Tom Roth (USA) 
Dirk-Jan Sinke (Netherlands)

In this seminar, we will debate the crucial intersection of taxation and sustainability, and discuss how tax fits into the evolving business and transparency paradigm shaped by historical political and economic developments, coupled with evolving societal expectations. The seminar will provide insights into the role of tax in advancing sustainable business practices and will feature perspectives from leading experts across various geographies and industries.

Chair: Isabel Verlinden (Belgium)

Secretary: Gaspar Ndabi (Belgium)

Confirmed Speakers:
Ivan Diaz-Barreiro (Mexico)
Rocío Bermúdez (Spain)
Shikha Gupta (India)
Dr. Emmanuel Llinares (France)
Richie Lombard (Ireland)
Dr. Raffaele Petruzzi (Italy)
Daniel Prates (Brazil)



Notwithstanding their plausibility and irrespective of their materiality, intra-group services are vulnerable to challenges, controversy and litigation around deemed artificial profit shifting. There is no such thing as a cost-plus one size fits all. Selecting the right Transfer Pricing method is anything but easy. Characterization is a first conundrum in today’s world, marked by end-to-end transformation of traditional products to an on-demand, subscription or consumption-based offerings, sensor-equipped physical products exchanging data with cloud-based analytical platforms to drive value-added services etc. Classification (high-value vs. low-value) facilitates designing TP methodologies in a consistent way but cannot unambiguously accommodate the TP methodology when senior decision makers operate in a geographically dispersed way. Issues related to the benefit test, simplifications (safe harbors and standardized documentation and compliance), penalties etc. underscore the virtues of multilaterally brokered solutions and the appeal of the session for anyone appreciating the strategic role of Transfer Pricing in business planning.

Chair: Prof. Dr. Ana Paula Dourado (Portugal)

Secretary: Dr. Dieter Bettens (Belgium)

Confirmed Speakers:
Dr. Krister Andersson (Sweden)
Dr. Jakub Jankowski (Poland)
Prof. Dr. Dr. Dres h.c. Julianne Kokott (ECJ)
Dr. Jasper Korving (The Netherlands)
Ioanna Mitroyanni (EU Commission)


Chair: Franklin Cachia (Malta)

Speakers:

Andreia Barbosa (Portugal)
Elizabeth Gonzalez Gasca (Mexico)
Didier Nsanzineza (Switzerland)
Leonardo Pignatari (Brazil)
Juan Manuel Vázquez (Argentina/Netherlands)

Chair: 
Dr. Pia Dorfmueller (Germany)

Speakers:
Bijal Ajinkya (India)
Prof. Ana Claudia Akie Utumi (Brazil)
Susanne Schreiber (Switzerland)
Jodi J. Schwartz (USA)

Mergers and acquisitions (M&As) can be an effective way for organisations to achieve strategic goals. But the complexities of international laws, regulations, and talent integration can threaten the success and outcome of global deals.

There are four key areas of the transaction: (i) the pre-contract period (including the non-disclosure agreement, term sheet, exclusivity agreement and due diligence process); (ii) the key legal documentation of the Transaction (i.e., the share purchase agreement or business/asset purchase agreement, the disclosure letter and the guarantee); (iii) signing and completion of the Transaction; and (iv) other considerations such as finance, antitrust, employment.

M&A tax considerations are crucial in any deal, especially in international transactions. They involve analyzing and quantifying tax risks and opportunities, structuring deals to minimize tax liabilities, and managing post-closing tax implications.

The scope of tax tasks in M&A transactions has changed over the last decade and new international tax developments, such as Pillar 2 and transfer pricing, do not only add to the complexity but also have in impact on the purchase agreements.

The analysis will draw on jurisdictions where significant experience with complex M&A transactions do exist, ensuring representation from key OECD countries and comparative law experts. Key topics will include:

· impacts of Pillar 2 on structuring and contractual allocation of risks in sale and purchase agreements (SPAs) and shareholder agreements,

· the types of disputes that may emerge as a result of Pillar 2,

· the impacts of transfer pricing, and

· the tax consequences of indirect transfers and the determination of beneficial ownership.

Chair:
Prof. Dr. Robert Danon
Prof. Dr. Adolfo Martín Jiménez

The Tax Directors' Lunch Dialogue will be a follow-up session of the Tax Directors’ Webinar held on 13 May 2025. The previous Webinar brought together professionals from across jurisdictions to explore the evolving landscape of international taxation, particularly as it affects multinational enterprises (MNEs). The session highlighted a range of recurring challenges and practical concerns that tax directors continue to navigate. In particular, tax directors highlighted persistent challenges with transfer pricing disputes, inconsistencies in MAP outcomes, and gaps between international standards and domestic practices.

As we look ahead to the IFA Congress in Lisbon, where a broader community of tax directors, policymakers, tax authorities, will gather, there is a timely opportunity to deepen this dialogue. Therefore, the upcoming dialogue will focus specifically on dispute prevention and dispute resolution. The goal is to explore forward-looking solutions, foster mutual understanding, and identify ways to strengthen cooperation between business and government stakeholders in addressing cross-border tax disputes.

Chair:
Prof. Dr. Robert Danon
Prof. Dr. Adolfo Martín Jiménez

The TLP Lunch Dialogue will mark the conclusion of the 2025 edition of the Global IFA Travelling Lectureship Programme, which focused this year on the timely and complex debates surrounding Pillar II and its ramifications. TLP brought together tax professionals, academics, and practitioners from across five regions and 12 countries, fostering meaningful cross-border dialogue.
During this concluding session, TLP lecturers will reflect on the key insights and outcomes of the lectures and discussions held throughout the year. The Lunch Dialogue will provide an opportunity to address regional perspectives and how they intersect with global developments, offering a comprehensive view on the challenges and policy implications of Pillar II. 

The Lunch Dialogue will bring together tax experts and government officials to explore the evolving landscape of global tax certainty. Discussions will cover the impacts of tax certainty for investment and compliance, alternative mechanisms to MAP arbitration, and ways to improve MAP effectiveness and timeliness. Drawing on business and government perspectives, the session will share practical experiences, challenges, and solutions to strengthen trust and cooperation in cross-border tax matters.