Who qualifies for Swiss citizenship by descent
You're Swiss if a parent was Swiss at your birth (for an unmarried Swiss father, once paternity is established). Born abroad with another citizenship? Make sure your birth was reported to a Swiss representation or your commune before you turn 25. Children born before 1985 to a Swiss mother and a foreign father, and children of unmarried Swiss fathers born before 2006, didn't automatically become Swiss but can apply for facilitated naturalisation. There's no grandparent route.
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Swiss abroad: report the birth before 25
Article 7 of the Citizenship Act ends Swiss citizenship at 25 for dual citizens born abroad if, by then, their birth was never reported to a Swiss authority and they never declared that they wanted to keep Swiss citizenship. Registering the child with the Swiss embassy or the commune of origin is enough — but a surprising number of families never did.
If you're under 25 and unsure, contact the Swiss representation for your area or the civil registry of your commune of origin; they can tell you whether you're recorded.
Sources: swissinfo — born abroad? How to keep your Swiss citizenship
Reinstatement: CHF 900, and a 10-year window
People who lost Swiss citizenship can apply for reinstatement. Within ten years of the loss you can apply from abroad if you're closely connected to Switzerland — which the authorities define concretely: at least three stays in Switzerland of at least five days each in the six years before applying, oral skills in a national language, and basic knowledge of Swiss geography, history, politics and society. After ten years you need three years' residence in Switzerland. The State Secretariat for Migration charges CHF 900 (CHF 650 for under-18s).
Sources: Swiss FDFA — reinstatement after loss of Swiss citizenship
Swiss mothers before 1985, unmarried Swiss fathers before 2006
Until 1985, a Swiss woman married to a foreigner couldn't pass on Swiss citizenship. Children born before 1 July 1985 to a Swiss mother and foreign father, and children of unmarried Swiss fathers born before 2006, can apply for facilitated naturalisation if they have close ties to Switzerland. It's a federal procedure with no cantonal residence requirement.
Your commune of origin
Every Swiss citizen is also a citizen of a commune and canton. Your Heimatort is on your parent's passport or family record, and its civil registry holds the family record that proves your line. If you're researching an older ancestor, the commune's records and the Swiss Federal Archives are the places to start.
Step by step
1. Find your parent's commune of origin (on their Swiss passport or family record). 2. Register with the Swiss representation for your area, which records you in the commune's civil register. 3. Apply for a Swiss passport. 4. If you're a dual citizen nearing 25 and unsure whether your birth was reported, ask the representation now — a report before 25 is all that's needed.
Swiss requirements at a glance
- A Swiss parent at your birth — no grandparent route
- Born abroad with another citizenship: birth reported to a Swiss authority, or a declaration to keep citizenship, before age 25
- Lost it at 25? Reinstatement within 10 years from abroad with close ties (at least three stays of 5+ days in Switzerland in the last six years, oral skills in a national language, basic knowledge of Switzerland)
- After 10 years: reinstatement only after 3 years living in Switzerland
- Born before 1985 to a Swiss mother and foreign father: facilitated naturalisation with close ties
Documents for a Swiss claim
- 1Your birth certificate naming your Swiss parent
- 2Your Swiss parent's passport or family record (Familienausweis) from the commune of origin
- 3Registration with the Swiss representation abroad (Swiss abroad register)
- 4For reinstatement: SEM's application, evidence of ties (stays in Switzerland, language), references
Swiss processing times
Reporting a birth and issuing a passport are administrative. Reinstatement and facilitated naturalisation are decided by the State Secretariat for Migration after the canton is consulted.
Where Swiss claims go wrong
- Never reporting a child's birth abroad — at 25 the child loses Swiss citizenship
- Missing the 10-year window for reinstatement from abroad
- Not knowing the commune of origin, which holds your family record
- Assuming a Swiss grandparent creates a claim
Official Swiss government sources
Swiss citizenship FAQ
Q1I'm 30, born in the US to a Swiss father, and my birth was never registered. Am I Swiss?
Probably not any more: if you're a dual citizen and your birth wasn't reported before you turned 25, you lost Swiss citizenship then. Within 10 years of that loss you can apply for reinstatement from abroad if you have close ties to Switzerland.
Q2What does reinstatement cost?
CHF 900 for adults and CHF 650 for under-18s.
Q3Can I get Swiss citizenship through my grandparents?
No. Swiss citizenship passes only from a parent.
Q4My mother is Swiss and I was born in 1980. Am I Swiss?
Not automatically — but children born before 1985 to a Swiss mother and foreign father can apply for facilitated naturalisation if closely tied to Switzerland.
Q5Does Switzerland allow dual citizenship?
Yes, since 1 January 1992.
Q6What counts as close ties for reinstatement from abroad?
At least three stays in Switzerland of at least five days each in the six years before applying, oral skills in a national language, and basic knowledge of Swiss geography, history, politics and society.
Swiss nationality law
Federal Act on Swiss Citizenship (Bürgerrechtsgesetz, BüG; SR 141.0), in force since 1 January 2018. Article 7 covers loss at 25 for people born abroad; Article 27 reinstatement; Article 51 facilitated naturalisation for children of Swiss mothers born before 1985 and of unmarried Swiss fathers born before 2006. Dual citizenship has been allowed since 1 January 1992.
Dual citizenship in Switzerland
Switzerland has allowed dual citizenship since 1 January 1992. Swiss citizens who take another citizenship keep Swiss citizenship.
Swiss application costs
Reinstatement: CHF 900 for adults, CHF 650 for under-18s (SEM fee). Passport and civil-status fees are separate.