Questão jurídica principal
Whether the appeal could also be treated as directed against the already final Vaud assessment and whether there was current intercantonal double taxation.
Decisão extraída
The Vaud assessment was considered implicitly challenged; for 2004 there was current double taxation because both Lucerne and Vaud claimed the main tax domicile.
Fundamentação extraída
In an intercantonal competence conflict, a final assessment of another canton may be attacked together with the challenged decision if the submissions and reasoning show that the taxpayer seeks a constitutionally correct determination of tax domicile and taxing power.