Question juridique clé
Whether the sale triggered Solothurn handänderungssteuer as an economic transfer of immovable property.
Solution extraite
Yes. A valid notarized purchase agreement already gave the buyer economic control over the property; the tax arose upon contract conclusion, not upon land-register entry.
Motifs extraits
Under § 206 Abs. 1 StG, the tax is triggered by any legal transaction transferring economic disposal power. In a purchase contract, the buyer can enforce transfer already when the contract is concluded; the land-register entry is not decisive.