Questão jurídica principal
Whether the Bern assessment had to be challenged together with the Luzern decision in an intercantonal double-taxation complaint
Decisão extraída
The complaint could not be understood as also attacking the final Bern assessment, because the appellant expressly targeted only Luzern's approach and relied on the Bern assessment as more favorable.
Fundamentação extraída
The Court held that an unchallenged competing assessment is not reviewed ex officio. A simultaneous challenge may only be inferred where the appellant seeks to avoid taxation in both cantons, which was not the case here.