The Withholding Tax Forum organized by the SUPSI Tax & Legal Competence Centre returns. During the afternoon seminar, the main current issues related to withholding tax will be explored in depth. The session will begin with an analysis of the collection and refund of withholding tax, through the presentation and discussion of practical cases, followed by an examination of future legislative developments currently under discussion in the Federal Parliament. Particular attention will be devoted to the growing relevance of withholding tax in the context of intra-group transfer pricing. The seminar will also provide an overview of the most recent decisions of the Federal Administrative Court and the Federal Supreme Court. Finally, through the analysis of concrete cases, the procedures applied by the Criminal Affairs and Investigations Division (DAPI) of the Swiss Federal Tax Administration, as well as the related criminal liabilities, will be clarified.

Programme and speakers

Collection of withholding tax (with possible references to certain federal stamp duties): current developments and practical cases
Fabio Riva
Certified Swiss tax expert, Head of Group 3 of the External Audit Division, Main Division for Direct Federal Tax, Withholding Tax and Stamp Duties, Swiss Federal Tax Administration, Bern

Alberto Lissi
Dr. iur., Certified Swiss tax expert, Attorney at law, Tax Partner AG, Zurich

Refund of withholding tax: current developments and practical cases
Oliver Oppliger
Certified Swiss tax expert, Head of Group 5, Refund Division, Main Division for Direct Federal Tax, Withholding Tax and Stamp Duties, Swiss Federal Tax Administration, Bern

Withholding tax: future legislative developments?
Paolo Pamini
Dr. oec., Certified Swiss tax expert, Member of the National Council and member of the Economic Affairs and Taxation Committee, Senior Manager PwC Lugano, Lecturer in Taxation at ETH Zurich

Transfer Pricing and withholding tax
Natassia Burkhalter
Dr. iur., LL.M., Head of Transfer Pricing Team, Swiss Federal Tax Administration, Bern

Recent case law developments in the field of withholding tax
Damiano Mezzi
MLaw, Attorney at law, CSI Certified Tax Expert, Deputy Head of Team 3 of the Legal Division, Main Division for Direct Federal Tax, Withholding Tax and Stamp Duties, Swiss Federal Tax Administration, Bern

Luca Aspesi
Attorney at law, Certified Swiss tax expert, Senior Advisor, Tax Partner AG, Zurich

DAPI procedures and criminal liability in the field of withholding tax: current developments and practical cases
Chiara Albisetti
MLaw, Attorney at law, CSI Certified Tax Expert, Officer at the Criminal Affairs and Investigations Division, Main Division for Direct Federal Tax, Withholding Tax and Stamp Duties, Swiss Federal Tax Administration, Bern

Giuseppe Gianella
Attorney at law, Partner at Mattei & Partners Law and Notary Firm, Lugano and Bellinzona

Fee
CHF 350
CHF 50 discount for FTAF members and partner institutions

Registration
https://bit.ly/seminario-24-09-26

Registration deadline
Monday, 21 September 2026