Unfair conduct by taxpayers when determining tax domicile in an intercantonal relationship
As tax evasion presupposes a breach of procedural obligations, this article takes a closer look at the procedural obligations, in particular the taxpayer's duty to cooperate, both in ordinary assessment proceedings and in tax domicile proceedings. Finally, the supplementary tax procedure is also addressed, taking into account the latest case law of the Federal Supreme Court on the terms "unknown" or "new" facts and evidence.
Reasons for mitigation in post-tax and fine proceedings
Swiss criminal tax law may impose different penalties for the same offenses. This is due to statutory grounds for mitigating penalties, which ensure that personal circumstances and individual cases can be taken into account. The aim of this article is to provide an overview of the grounds for mitigating penalties in post-tax proceedings and to highlight current developments in practice, particularly in the Canton of Zurich.
Cross-border commuter regulation Switzerland-France
The home office has fundamentally changed cross-border taxation - also in the relationship between Switzerland and France. New rules have applied to French cross-border commuters since 2023, which allow more flexibility but also place greater demands on employers and employees. This article provides a concise overview of the current tax framework and shows what should be paid particular attention to.
Taxation of spouses in international relationships - Federal Supreme Court ruling of September 23, 2024 Prejudice on tax separation issues
In its ruling of September 23, 2024, the Federal Supreme Court issued a long-awaited precedent on the issue of international tax differentiation of debts and debt interest in the case of international spouses and revised its ruling of March 2023 on the international transfer of maintenance payments to the divorced spouse. What does this precedent mean for practice and how should other exciting practical cases be handled?
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".










