You can apply for naturalisation if you have lived in Switzerland for at least twelve years. The time between the completion of the 10th and 20th years of age is counted double for this purpose. You will have to satisfy the following requirements for naturalisation: you must be socially and culturally integrated in Switzerland, comply with the Swiss rule of law, and you must not endanger Switzerland’s internal or external security.
Depending on cantonal arrangements, applications must be submitted to the canton, the community, or the State Secretariat for Migration. Information about this is available from the community of residence or from the cantonal naturalisation service.
You must have lived in a stable marriage with your spouse for at least three years, have lived in Switzerland for five years all in all, the last twelve months of which must be without interruption. If you live abroad, you must have lived in a stable marriage for at least six years and must have close connections with Switzerland. Regardless of where you live, you must be integrated in the Swiss way of life at least by analogy, comply with the Swiss rule of law, and you must not endanger Switzerland’s internal or external security.
Note: The Swiss spouse must have been of Swiss citizenship before marriage.
In certain cases, the Nationality Act (Art. 31a, Art. 31b, Art. 58a, Art. 58b) allows for facilitated naturalisation. For further information, please contact the State Secretariat for Migration FOM, Quellenweg 6, CH-3003 Bern-Wabern (E-Mail) or, if you are resident abroad, the relevant Swiss representation.
Yes, provided the other country’s legislation does not demand that you waive your previous nationality. You can obtain detailed information from the other country’s relevant authorities, in Switzerland from their embassies or consulates.
In Switzerland, dual nationality is permitted without restriction. The question as to whether you will be able to keep your previous nationality after naturalisation thus solely depends on the country whose nationality you hold now. You can obtain detailed information from the other country’s relevant authorities, in Switzerland from their embassies or consulates.