Kernrechtsfrage
Whether the appeal deadline could be based on the service fiction after more than three years of procedural inactivity.
Extrahierter Entscheid
No. After nearly three years without any procedural communication, the taxpayer could not be expected to reckon with service in the same way as shortly after the proceedings began.
Extrahierte Begründung
The court distinguished the ongoing duty to remain reachable from the separate question of when service fiction may still reasonably apply. Long inactivity made it arbitrary to treat the decision as served on the last day of the postal holding period.