Mourant

The New Era of Taxation

10 Sep - 12 Sep 2025

Session information

Tax controversy – burden of proof in litigation and mediation with tax authorities

Friday 12 September (0900 - 1030)

Description

The burden of proof plays a pivotal role in both tax litigation and alternative dispute resolution with tax authorities. This panel will analyse how different jurisdictions allocate the burden between taxpayers and tax administrations, and how this impacts the outcome of disputes. Particular attention will be given to evidentiary standards, the role of presumptions, and practical strategies for meeting documentation requirements in complex cross-border cases. The panel will also address how burden of proof considerations influence  the dynamics of tax mediation and settlement procedures.

Speakers

Alex Cordova Rodrigo Elias & Medrano Abogados, Lima, Peru
Wojciech Marszalkowski Wardynski & Partners, Warsaw, Poland
Jenni Parviainen Hannes Snellman, Helsinki, Finland; Membership Officer - Europe, Taxes Committee