Question juridique clé
Whether applying Art. 218 DBG to the 1998 dividend violated the constitutional ban on retroactivity.
Solution extraite
No unlawful retroactivity was found; the new rule was binding and, in any event, did not create a new tax object.
Motifs extraits
The court held that the federal legislature enacted the transitional rule with knowledge of the Cantonal transition. Moreover, dividends had always been subject to income tax, so the provision affected only the scope of taxation, not a new taxable event.