The Lisbon International & European Tax Law Seminars 2025/2026

June 17, 2026, 17 and 18 June 2026, Faculty of Law of the University of Lisbon | 4.00 p.m.

The Lisbon International & European Tax Law Seminars 2025/2026, organised by CIDEEFF in collaboration with the University of Leeds, form part of the research development programme in International and European Tax Law, under the scientific coordination of Professor Ana Paula Dourado and Professor Rita de la Feria.

The Seminars aim to promote dialogue between academics and practitioners on current and relevant issues in international and European taxation. They feature a distinguished international panel of speakers, whose contributions enhance the richness and depth of the discussions.

In this year’s edition, six papers have been selected and will be presented on 17 and 18 June, divided into two panels of three presentations each. The session will include the participation of Professor Nilay Kuzeyli as General Discussant.

To attend the sessions, please register at: cideeff@fd.ulisboa.pt.

The event will be held in English.

The programme for the session is available below.

LISBON INTERNATIONAL AND EUROPEAN TAX SEMINARS 2025/26

SCIENTIFIC COORDINATION

ANA PAULA DOURADO (UNIVERSITY OF LISBON/CIDEEFF)

& RITA DE LA FERIA (UNIVERSITY OF LEEDS)

GENERAL DISCUSSANT

NILAY KUZEYLI (BILKENT UNIVERSITY)

17 June

15:30	Registration
15:50	Welcome Ana Paula Dourado & Rita de la Feria
16:00-16:45	Session I Navigating the EU Company Law and Taxation as a Non-EU Entreperneur: Leagal Pathways, Barriers, and the Shift Toward Tax Durability Sanjita Jaiswal (University of Duesto) Is the distiction between residents and non-residents still relevant in the context of EU Direct tax law? Wilfried Meidom (Toulouse Capitole University) Mitigating Cross-Broader Double Taxation: The Impact of EU 'Faster Directive' on Dividend and Interest Withholding in Portugal-Spain Operations María Sánchez Jiménez (Complutense University of Madrid)
16:45-17:30	Discussion

18 June

15:30	Registration
16:00-16:45	Session II International Tax Peace Fernando Loayza-Jordán (Yale University) The 'Black Box' of Automated Taxation: A Comparative Study of Algorithmic Accountability and Taxpayer Rights in Germimany and Taiwan Chia-Hao Hsu (University of Münster) Designing and Evaluating the Tax Compliance Model of Juridicial Persons based on the Views of Financial Experts Using Grounded Theory Saeed Karimi (Islamiz Azad Univeristy)
16:45-17:30	Discussion
18:00-18:10	Closing remarks Ana Paula Dourado & Rita de la Feria