The definition of turnover according to the Minimum Tax Ordinance
According to the Minimum Tax Ordinance (MindStV), business units belonging to Switzerland are subject to Swiss supplementary tax if they belong to a group of companies with a turnover of at least EUR 750 million. The concept of turnover as a central prerequisite for subjective tax liability is only rudimentarily regulated in the ordinance. This article examines this concept from different perspectives with reference to various OECD/G20 documents and identifies open questions.
Taxation of spouses in international relations - tax segregation issues
In the zsis) issue of November 2019, the authors dealt with tax law stumbling blocks in the taxation of spouses in international relationships. In this article, they have focused on the tax segregation of international spouses. On the basis of a test scheme with three questions, they show that a systematic procedure is essential for correct tax segregation and that there is still a need for action here on the part of the assessment authority and the courts.
Taxation of employees in the case of cross-border work in the home office
Sarah Bühler, René Matteotti and Peter Vogt address the taxation of international employees and their home office activities. They provide an overview of the existing regulations and pay particular attention to the cross-border commuter agreements with Switzerland's neighboring countries.
Implications of the home office for cross-border commuters between Switzerland and Germany
Working from home has become much more important due to the Corona pandemic. Many employers have found that working from home has proven successful and have introduced regulations that enable mobile working. This also affects cross-border commuters between Germany and Switzerland. A variety of tax regulations, especially in the DTA D-CH, as well as consequences under social security law must be taken into account.
Tax relief for various countries
On April 7, 2025, the SIF updated the overview of the effects of the agreement (extent of relief) for various countries.
Switzerland and Zimbabwe sign a double taxation agreement
On March 19, 2025, Switzerland and Zimbabwe signed an agreement on the avoidance of double taxation (DTA) in the area of income taxes in Harare.
Memorandum of Understanding between Switzerland and Italy - Administrative cooperation
On March 19, 2025, the SIF reported that the competent authorities of Switzerland and Italy, in accordance with Art. 7 para. 1 of the Agreement of December 23, 2020 between Switzerland and Italy on the taxation of cross-border commuters, have defined the details of the application of administrative cooperation by mutual agreement.
Supplementary tax: Tax treatment of business units that qualify as permanent establishments
On March 18, 2025, the FTA explained the treatment of business units that are considered permanent establishments in a communication on the minimum taxation of multinational enterprise groups.
Federal Council opens consultation on change to FATCA model
At its meeting on March 7, 2025, the Federal Council opened the consultation process for a new FATCA agreement.
Federal Council opens consultation on the exchange of information on OECD minimum taxation
On January 29, 2025, the Federal Council opened the consultation on the exchange of information regarding OECD minimum taxation.
ISIS seminar folder "Gratuitous transfer of assets under tax law"
All documents from the ISIS) seminar "Gratuitous transfer of assets in tax law" from October 28, 2025 under the direction of Peter Mäusli-Allenspach in one PDF document. Case studies, detailed solution notes and slides: Here you will find all documents of the individual workshops according to the following content description.
Practical examples of cross-border issues in relation to Germany
Case studies, slides and detailed solution notes from the workshop held by Hanna Brozzo and Iring Christopeit on October 28, 2025 on the occasion of the ISIS seminar "Gratuitous asset transfers in tax law".
