After ten years of residence in Switzerland, many people ask themselves about naturalisation. This article sets out the formal and substantive requirements of ordinary naturalisation under the Citizenship Act (BüG).

Formal requirements: ten years of residence

Under Art. 9 BüG, the federal government grants the naturalisation permit only if a total of ten years of residence in Switzerland is proven, of which three years must fall within the last five years before the application is filed. In addition, a valid settlement permit (C permit) is required when the application is filed.

Art. 9 para. 2 BüG: Years spent in Switzerland between the ages of 8 and 18 count double when calculating the length of residence, but by no more than five additional years.

The ten years need not be consecutive; what counts is lawful, actual residence. Cantons and municipalities usually also require a minimum period of residence in the current canton and municipality (in practice often two years).

Substantive requirements: integration criteria under Art. 12 BüG

Successful integration is assessed in particular on the basis of the following criteria:

Under Art. 12 para. 3 BüG, cantons may provide for additional integration criteria; the specific requirements therefore differ depending on your canton and municipality of residence.

The three-tier procedure

Ordinary naturalisation requires approval at three levels: the municipality of residence examines the local integration requirements and grants municipal citizenship, the canton grants cantonal citizenship, and the federal government grants the naturalisation permit. Naturalisation is ultimately ordered by the canton (Art. 14 BüG).

Common stumbling blocks in practice

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