Key legal question
Whether losses incurred under the former holding regime could be carried forward after the switch to ordinary taxation.
Extracted holding
No. The refusal of loss carryforward was not arbitrary because the company could have neutralized latent reserves before the regime switch, and carrying forward losses would disturb the parallel treatment of gains and losses.
Extracted reasoning
Cantons have discretion regarding the fiscal consequences of ending holding status. Genevan practice allowed booking latent reserves in the 2006 tax balance sheet without effect on profit; in that setting, denying carryforward is sustainable and not shocking.