Kernrechtsfrage
Whether the Federal Supreme Court could hear the appeal against the cantonal tax appeal commission's non-entry decision on direct federal tax.
Extrahierter Entscheid
No; because Basel-Stadt provides a further cantonal judicial instance for cantonal taxes, the corresponding avenue must also be open for direct federal tax, so the cantonal remedy was not exhausted.
Extrahierte Begründung
Under the case law following BGE 130 II 65, cantons with a further judicial instance for harmonized cantonal taxes must open the same instance path for direct federal tax. Since the cantonal instance path was not exhausted, the appeal was inadmissible.