Questione giuridica chiave
Whether applying tariff D to 120-day short-term permit holders had a sufficient legal basis
Decisione estratta
The duration-of-permit criterion used by the cantonal tax authority was not contained in the applicable tax statutes or the withholding tax ordinance and therefore lacked sufficient legal basis.
Motivazione estratta
Tariff D is reserved for secondary employment. The workers concerned performed full-time work and could not realistically be treated as secondary earners; the permit duration could not justify that categorization.