Key legal question
Whether prize money earned abroad is subject to AHV contribution duty under Art. 4 AHVG and Art. 6ter AHVV.
Extracted holding
Yes. The foreign prize money did not fall within any exclusion in Art. 6ter AHVV and therefore remained subject to AHV contributions.
Extracted reasoning
Art. 6ter AHVV exhaustively excludes only certain foreign earnings, such as income from businesses or permanent establishments abroad, income as an organ of a foreign legal entity, or lump-sum taxpayers. A. did not belong to any of these categories.