The Swiss Council of States approved on 9 March 2026 the protocol updating the 1999 income and capital tax treaty with Croatia, incorporating OECD Model updates and BEPS measures.

The Swiss Council of States approved the ratification of the amending protocol to the 1999 income and capital tax treaty with Croatia on 9 March 2026.

Signed on 18 July 2025, the protocol makes updates to the OECD Model Double Taxation Agreement and the implementation of the Multilateral Convention on Base Erosion and Profit Shifting (BEPS).

It will take effect once both countries exchange their instruments of ratification, with its provisions generally applying from 1 January of the following year.

Earlier, the Swiss Federal Council confirmed on 26 November 2025 the adoption of the dispatch for the protocol amending the 1999 income and capital tax treaty with Croatia.