Economic substance in Switzerland refers to the requirement that a Swiss company (particularly a holding, domiciliary or mixed company) must have genuine operational reality — real management, decision-making, employees and physical presence — to benefit from preferential cantonal tax regimes, international tax treaty benefits and certain structuring advantages. The concept is central to the post-BEPS (Base Erosion and Profit Shifting) Swiss tax environment, where pure letterbox companies with no economic activity are increasingly challenged by Swiss and foreign tax authorities. In financial structuring, economic substance must be assessed when creating Swiss holding or treasury structures.

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Example: a French group creates a Swiss intermediate holding in Zug to benefit from the Swiss participation exemption. To ensure the holding qualifies as economically substantive, it must have: a local board with real decision-making authority, at least one qualified Swiss-resident director, genuine treasury management activities and documentation of all significant decisions. Without this substance, the holding risks being challenged as an abuse of treaty rights by French or cantonal tax authorities.

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Hectelion advises on economic substance requirements in Swiss holding and structuring mandates, ensuring Swiss structures are both tax-efficient and regulatory-compliant.