Kernrechtsfrage
Whether the appeal against the cantonal court's remand decision was admissible as a final decision.
Extrahierter Entscheid
The remand decision was an interlocutory decision because the tax authorities still had discretionary room, including on possible exemption for the water business and on reassessment factors.
Extrahierte Begründung
A remand decision is final only if the lower authority has no decision-making discretion and merely has to implement calculations. That was not the case here.