The amending protocol to the 2012 income and capital tax treaty between Hungary and Switzerland entered into force on 16 November 2025. The protocol, signed on 12 July 2024, is the first to amend the treaty and includes the following changes:

• The preamble is replaced in line with OECD BEPS standards;
• Article 25 (Mutual agreement procedure) is amended with the addition of new arbitration provis…