Key legal question
Whether the Aargau assessment created prohibited intercantonal double taxation for the usufruct property share.
Extracted holding
Yes. The same movable usufruct property could not be taxed in Aargau, because movable usufruct property is taxable at the usufructuary's domicile.
Extracted reasoning
For usufruct arrangements, formal identity of the taxpayer is not required. The decisive point is that the same property may not be taxed twice; the taxable period was also identical in both cantons.