Welcome to Lisbon
From 05 to 09 October, the global tax community is gathering in Lisbon for the 77th Congress of the International Fiscal Association. Almost 60 years after the first IFA Congress held in Portugal, Lisbon again hosts the IFA Congress. There will be discussions and debates on international tax topics of current major interest and importance. We are delighted to be an IFA 2025 Gold Sponsor and will be represented by a large delegation of colleagues from our various tax practice groups. You can find our tax experts at Flick Gocke Schaumburg’s exhibition stand (9 & 10) at the Lisbon Congress Centre.
We are looking forward to five fantastic days of professional discussions, knowledge sharing and valuable networking opportunities!
Let's meet at IFA 2025
Prof. Dr. Xaver Ditz
Steuerberater
Partner
+49 228 9594-226
Dr. Christian Engelen
Steuerberater,
Master of Science
Partner
+49 211 61822-0
Dr. Torsten Engers
Rechtsanwalt,
Steuerberater,
Fachberater für Internationales Steuerrecht
Partner
+49 69 71703-0
Dr. Sven Kluge
Diplom-Kaufmann,
Steuerberater
Partner
+49 711 69946-222
Dr. Marcus Oliver Mick LL.M. (Fordham Univers.)
Rechtsanwalt,
Steuerberater
Partner
+49 69 71703-0
Prof. Dr. Jens Schönfeld
Rechtsanwalt,
Fachanwalt für Steuerrecht,
Diplom-Kaufmann
Partner
+49 228 9594-305 /-636
Dr. Tim Zinowsky
Diplom-Ökonom,
Steuerberater,
Fachberater für Internationales Steuerrecht
Partner
+49 228 9594-636
Dr. Christian Heider
Steuerberater,
Master of Science
Assoziierter Partner
+49 228 9594-0
Dr. Goetz Kempelmann LL.M. (Harvard)
Rechtsanwalt,
Steuerberater
Partner
+49 211 61822-124
Prof. Dr. Detlev J. Piltz
Rechtsanwalt,
Fachanwalt für Steuerrecht
Assoziierter Partner
+49 228 9594-311
Prof. Dr. Axel Cordewener LL.M.
Rechtsanwalt,
Diplom-Finanzwirt
Of Counsel
+49 228 9594-0
Fabian Mang LL.M.
Rechtsanwalt,
Steuerberater
Assoziierter Partner
+49 711 69946-0
Susanne Mederer
Steuerberaterin,
Fachberaterin für Internationales Steuerrecht
Assoziierte Partnerin
+49 89 800016-0
Dr. Thomas Sendke
Rechtsanwalt,
Steuerberater,
Diplom-Finanzwirt (FH)
+49 228 9594-693
Dr. Noemi Strotkemper
Rechtsanwältin,
Steuerberaterin
Assoziierte Partnerin
+49 211 61822-0
FGS Symposium Session @ IFA 2025
Global Dispute Settlement and Prevention Proceedings:
Trends focusing on a German Perspective
Event Date: Tuesday, 7 October 2025, 3:45 pm – 5:00 pm
Location: Terrace, Lisbon Congress Centre (CCL)
This year’s FGS Symposium Session will explore recent trends in international dispute settlement and prevention. Preventing and resolving cross-border tax controversies has become a priority for taxpayers and tax authorities alike. Achieving legal certainty is the overarching goal. But that goes along with a proper application of procedural law, such as the choice of the most suitable instrument and other questions.
Drawing on recent cases, the panelists will highlight technical and procedural challenges affecting cases with German involvement, such as the limited scope of MLI arbitration for double tax treaties, the interplay with EU instruments, the handling of practical questions relating to tax-transparent partnerships for cross-border dispute settlement and prevention proceedings, and insights from interlocking joint audits with APA or MAP.
What are the lessons from recent cases in Germany and abroad? How do joint audits supplement dispute resolution and prevention tools like MAP or APAs? And what are the latest trends shaping international tax cooperation?
Experts from Flick Gocke Schaumburg, Dr. Noemi Strotkemper and Dr. Christian Heider, will start with addressing recent trends and insights from a German perspective. Building on this, European and global experiences and trends will be discussed with our distinguished colleagues: Prof. Dr. René Matteotti (University of Zurich and Tax Partner AG, Switzerland), Sarah Blakelock (AstraZeneca, UK), Mariana Martins Silva (Garrigues, Portugal), and Martin Eckerstorfer (LeitnerLeitner, Austria).
Secure one of the limited seats available and join us for a lively and interactive discussion. Registration is free of charge. We hope to see you there!
About Flick Gocke Schaumburg
Flick Gocke Schaumburg (FGS) is an independent interdisciplinary firm of lawyers, tax advisors and public auditors in Germany. With nore than 450 professionals, including 97 partners and 91 associated partners, FGS has made a name for itself for over 50 years as Germany’s leading practice for highly qualified advice, in particular at the interface between tax law, business law and auditing/business valuation. Amongst the firm’s clients are stock-listed corporations, including the majority of the DAX companies, domestic and foreign corporate
groups, family-owned businesses, small and medium-sized enterprises with national and international operations, high-net-worth individuals, not-for-profit organizations and public institutions.
In addition to its own capabilities the firm maintains close relations with many highly recognized consulting firms worldwide. FGS is ranked among the leading firms in its key practice areas in the international legal directories and has won numerous awards.
Integrated services
Our experienced partners and advisors are loyal companions with a deep understanding of our clients’ needs and a view of clients’ concerns from different, complementary angles. This clear focus on our clients is the basis of our integrated services: a unique advisory approach that opens up promising business opportunities for our clients. Our services are aimed in particular at
- Family-Owned Businesses
- Corporate Groups and Stock-listed Corporations
- Private Clients
- Family Offices
- Civil Society and the Public Sector
- Founders and Investors
Find out more
Our reputation: Awards and rankings
