Whether the taxpayer retained unlimited tax residence in Zurich in 2010 or had transferred his tax domicile abroad with the move to Israel
The taxpayer gave up his Zurich domicile when he left for Israel in mid-March 2010; unlimited Swiss tax liability ended then.
For a move abroad, it is not enough to sever prior ties; a new domicile must be established. In this case, the over-one-year foreign stay, rented accommodation abroad, social integration there, and only short occasional returns to Switzerland outweighed the retained apartment in Zurich.