Kernrechtsfrage
Whether the objection decision was validly served and the appeal to the Tax Appeal Commission was late.
Extrahierter Entscheid
The decision was deemed served by postal notice and, at the latest, by the second ordinary mailing; the appeal was therefore late.
Extrahierte Begründung
A registered mailing returned as 'not collected' supports proper postal notification. The taxpayer offered no concrete indications of irregularities, and repeated mailing errors were unlikely on the same file.