Kernrechtsfrage
Whether the taxpayer could rely on a revision ground under Art. 147 DBG for the 1999/2000 assessment.
Extrahierter Entscheid
The court held that the lower court had not sufficiently clarified the taxpayer's mental capacity and could not simply assume that he had been able to raise the relevant facts during the ordinary proceedings.
Extrahierte Begründung
Severe psychiatric illness may reduce or eliminate the diligence expected under Art. 147(2) DBG. The record did not permit a reliable inference of capacity in 1999 merely from later ability to file returns. Further factual inquiry was required.