Bringing family members to Switzerland
Before aliens are permitted to bring close family members into Switzerland, an application must first be made to the "Bevölkerungsdienste und Migration" (Population Services and Migration Office) well in advance of the planned date of arrival. As a rule, the family members in question are then issued an "Aufenthaltsbewilligung B" (residence permit class B), too. Entering Switzerland for the purpose of preparing a wedding can also be approved; during this period, however, the partner is not permitted to work. Unmarried partners have to find their own job and must fulfil the statutory provisions of employment market law. Once they have been granted residence permits, spouses, parents and children are free to look for work themselves (i.e. without the same statutory employment market restrictions). Work permits are issued following an assessment of the terms and conditions of employment conducted by the "Einwohnerdienste" (Residents Registration Office).
The spouses and children of Swiss nationals, as well as those of persons with a residence or work permit or residence permit, who have entered the country in the context of family reunification may take up self-employed or employed work anywhere in Switzerland without any additional approval procedures.
Useful link: www.spousescareercentre.com