CH · Citizenship by descent

Swiss citizenship by descent

Reaches a parent. Every answer on this page is what Postern’s rulebook returns, word for word, with the law it cites. The free check runs the same rules.

Last verified 26 September 20265 sourcesNot legal advice

CH · PARENTLIKELYThrough a parentCitizen by descent (Art. 1)CH · GRANDPARENTUNLIKELYThrough a grandparentNo grandparent routeCH · GREAT-GRANDPARENTUNLIKELYThrough a great-grandparentNo grandparent route
Routes
Citizen by descent (Art. 1) · Retention at 25 (Art. 7) · Reinstatement (Arts. 26 and 27) · Facilitated naturalisation under transitional law (Art. 51)
Dual citizenship
Kept on every open route

The stamps assume no one in the line became a citizen of another country before the next person in the line was born. What changes each answer is below.

On this page
  1. 01Who qualifies
  2. 02Dates that matter
  3. 03Mothers’ lines
  4. 04Keeping your citizenship
  5. 05The routes and the law
  6. 06The documents
  7. 07What it takes
  8. 08Where the records live
  9. 09Law changes
  10. 10Other doors
  11. 11Sources

01Who qualifies

Who qualifies, generation by generation

LIKELY

Can you claim Swiss citizenship through a parent?

Citizen by descent (Art. 1)

A child of a Swiss parent is Swiss from birth. Born abroad with another nationality, you keep it past 25 by being registered with a Swiss representation, or telling one in writing that you wish to keep it, before then.

What would settle itWhether your parents were married at your birth or paternity was established while you were a minor.

What changes the answer

  • POSSIBLE
    If someone in the line became a citizen of another country before the next person in the line was born

    Switzerland does not strip citizenship from a Swiss who takes another nationality, so your parent's naturalization abroad did not by itself break the line. What matters is whether they were formally released, or forfeited it at 25 for want of registration.

  • POSSIBLE
    If you were born before 2002Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

    Born before 2006 to a Swiss father, you were Swiss from birth if your parents were married; if not, the transitional law lets you apply for facilitated naturalisation with proven paternity and close ties to Switzerland, without living there.

  • POSSIBLE
    If you were born between 2002 and 2005Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

    Born before 2006 to a Swiss father, you were Swiss from birth if your parents were married; if not, the transitional law lets you apply for facilitated naturalisation with proven paternity and close ties to Switzerland, without living there.

  • POSSIBLE
    If the parent is your mother and you were born before 2002Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

    Born to a Swiss mother, you were Swiss from birth if she was unmarried, or married under the current rule. If the older law skipped you, the transitional provision lets a child of a Swiss mother married to a foreigner apply for facilitated naturalisation with close ties to Switzerland.

  • POSSIBLE
    If the parent is your mother and you were born between 2002 and 2005Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

    Born to a Swiss mother, you were Swiss from birth if she was unmarried, or married under the current rule. If the older law skipped you, the transitional provision lets a child of a Swiss mother married to a foreigner apply for facilitated naturalisation with close ties to Switzerland.

UNLIKELY

Can you claim Swiss citizenship through a grandparent?

No grandparent route

Swiss citizenship passes only from a parent who held it at your birth, and a parent born abroad forfeited it at 25 unless the family registered them with a Swiss representation. The Act has no route for grandchildren; without a Swiss parent, the road to Switzerland is residence and ordinary naturalisation.

What would settle itWhether your parent is still Swiss (registered with a Swiss representation before 25, or a current passport), or can be reinstated within ten years of losing it; then the parent rule applies to children born afterwards.

UNLIKELY

Can you claim Swiss citizenship through a great-grandparent?

No grandparent route

Swiss citizenship passes only from a parent who held it at your birth, and a parent born abroad forfeited it at 25 unless the family registered them with a Swiss representation. The Act has no route for grandchildren; without a Swiss parent, the road to Switzerland is residence and ordinary naturalisation.

What would settle itWhether your parent is still Swiss (registered with a Swiss representation before 25, or a current passport), or can be reinstated within ten years of losing it; then the parent rule applies to children born afterwards.

02Dates that matter

The dates that matter

  1. 1992
    1 January 1992

    Dual nationality has been recognised without restriction since 1 January 1992, so keeping Swiss citizenship does not cost you your other one. State Secretariat for Migration: dual nationality (recognised without restriction since 1 January 1992)

  2. 1992
    1 January 1992

    Dual nationality has been recognised without restriction since 1 January 1992; a Swiss who acquires another nationality keeps Swiss citizenship unless released on request. State Secretariat for Migration: dual nationality (recognised without restriction since 1 January 1992)

  3. 1992
    1 January 1992

    Switzerland has recognised dual nationality without restriction since 1 January 1992. State Secretariat for Migration: dual nationality (recognised without restriction since 1 January 1992)

  4. 2006
    1 January 2006

    A foreign child born before 1 January 2006 to a Swiss father may apply for facilitated naturalisation if paternity is established and the child is closely connected to Switzerland; if the parents marry, the child becomes Swiss as from birth. Swiss Citizenship Act (Bürgerrechtsgesetz, BüG), SR 141.0, in force 1 January 2018, Art. 51(2) and (3)

03Mothers’ lines

How mothers’ lines were treated

In Switzerland’s rule, the answer changes when the line runs through a woman:

  • POSSIBLE
    If the parent is your mother and you were born before 2002Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

    Born to a Swiss mother, you were Swiss from birth if she was unmarried, or married under the current rule. If the older law skipped you, the transitional provision lets a child of a Swiss mother married to a foreigner apply for facilitated naturalisation with close ties to Switzerland.

  • POSSIBLE
    If the parent is your mother and you were born between 2002 and 2005Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

    Born to a Swiss mother, you were Swiss from birth if she was unmarried, or married under the current rule. If the older law skipped you, the transitional provision lets a child of a Swiss mother married to a foreigner apply for facilitated naturalisation with close ties to Switzerland.

In the law’s words

04Keeping your citizenship

Dual citizenship with your home country

You keep your citizenship.

On every open route, the rule lets a citizen of the United States, Canada, the United Kingdom, Australia, New Zealand, Brazil, Argentina or South Africa keep that citizenship.

05The routes

Every route, and the law behind it

Citizen by descent (Art. 1)

Open through a parent

  • LIKELY
    Through a parent
  • POSSIBLE
    Through a parent, if someone in the line became a citizen of another country before the next person in the line was born

The law

What would settle an unsure case

  • Whether your parents were married at your birth or paternity was established while you were a minor.
  • Whether your parent was ever released from Swiss citizenship (Entlassung), or forfeited it at 25 as a dual national born abroad; the commune of origin's register would show it.

Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

Open through a parent

  • POSSIBLE
    Through a parent, if you were born before 2002
  • POSSIBLE
    Through a parent, if the parent is your mother and you were born before 2002

The law

What would settle an unsure case

  • Whether your parents were married at your birth (then Art. 1 and the 25-year rule decide) or not (then Art. 51 facilitated naturalisation, on close ties).
  • Whether you were registered as Swiss at birth in your mother's commune of origin (then the 25-year rule decides) or not (then Art. 51 facilitated naturalisation, on close ties).

No grandparent route

Closed: no open answer on this route

  • UNLIKELY
    Through a grandparent

    Swiss citizenship passes only from a parent who held it at your birth, and a parent born abroad forfeited it at 25 unless the family registered them with a Swiss representation. The Act has no route for grandchildren; without a Swiss parent, the road to Switzerland is residence and ordinary naturalisation.

The law

What would settle an unsure case

  • Whether your parent is still Swiss (registered with a Swiss representation before 25, or a current passport), or can be reinstated within ten years of losing it; then the parent rule applies to children born afterwards.

06The documents

The documents, as the rule lists them

Citizen by descent (Art. 1)

Through a parent

  • Your parent's Swiss passport or certificate of citizenship
  • Your birth certificate
  • Your parents' marriage certificate, or the record establishing paternity

Through a parent, if someone in the line became a citizen of another country before the next person in the line was born

  • Your parent's Swiss passport, certificate of citizenship or entry in the register of their commune of origin (Heimatort)
  • Your birth certificate

Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

Through a parent, if you were born before 2002

  • Your parent's certificate of citizenship or entry in the register of their commune of origin
  • Your birth certificate
  • Your parents' marriage certificate, or the record establishing paternity
  • Evidence of ties to Switzerland: visits, family, language, contact with the Swiss representation

Through a parent, if the parent is your mother and you were born before 2002

  • Your parent's certificate of citizenship or entry in the register of their commune of origin
  • Your birth certificate
  • Your parents' marriage certificate
  • Evidence of ties to Switzerland: visits, family, language, contact with the Swiss representation

Most countries also want proof that no one in the line became a citizen elsewhere before the next birth: the naturalization record with its date, or a letter that none exists.

07What it takes

What it takes: time, cost, the hard part, who decides

Citizen by descent (Art. 1)

Time
4–8 weeks for a first Swiss passport once citizenship is confirmed; longer if the Art. 7 registration or reinstatement question needs the commune's or SEM's decision first.
Cost
About $200–500: certified copies, apostilles and the passport fee.
The hard part
If you were born abroad and are past 25 with another nationality, showing you registered with a Swiss authority or representation before then; if not, reinstatement is open for ten years without moving, and after that only with three years' Swiss residence.
Who decides
The Swiss consulate for your address, or the commune of origin's civil registry for the Heimatschein.
The first record
Your parent’s Swiss certificate of citizenship (Heimatschein) or civil-register extract, from The civil registry office (Zivilstandsamt) of the parent’s commune of origin (Heimatort). Write to the Zivilstandsamt of the commune of origin (found on the family’s old papers or a Swiss passport) with the name and date of birth; the Federal Office of Justice’s civil-status page lists each canton’s registry offices. bj.admin.ch

How it’s filed

Where
The Swiss embassy or consulate for your address, or the commune of origin's civil registry directly office list
How
In person; no appearance needed
Fee
Not confirmed: no official fee was found
Decision
1–9 months
What goes in the file (4)
  1. Your parent's Swiss certificate of citizenship (Heimatschein) or register extract
  2. Your own birth certificate
  3. Your parents' marriage certificate, or the record establishing paternity
  4. Any prior registration with a Swiss representation, if you are past 25 and hold another nationality
What goes wrong (1)
  • Unverified: SEM's published fee, if any, for an Art. 7 registration or an Art. 26/27 reinstatement filed from abroad.

Checked 26 September 2026 · source ↗

Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51)

Time
4–8 weeks if you were already Swiss from birth (married parents, or an unmarried Swiss mother); 1–2 years for the Art. 51 facilitated naturalisation application to the State Secretariat for Migration (SEM) if not.
Cost
About $300–700: certified copies, translations, and, for Art. 51, SEM's facilitated-naturalisation fee.
The hard part
Showing 'close ties' to Switzerland for the Art. 51 route: visits, family contact, some knowledge of a national language, or registration with a Swiss representation abroad.
Who decides
The State Secretariat for Migration (SEM), through the Swiss consulate for your address.
The first record
Your parent’s Swiss certificate of citizenship (Heimatschein) or civil-register extract, from The civil registry office (Zivilstandsamt) of the parent’s commune of origin (Heimatort). Write to the Zivilstandsamt of the commune of origin (found on the family’s old papers or a Swiss passport) with the name and date of birth; the Federal Office of Justice’s civil-status page lists each canton’s registry offices. bj.admin.ch

How it’s filed

Where
The State Secretariat for Migration (SEM), through the Swiss embassy or consulate for your address office list
How
In person; no appearance needed
Fee
Not confirmed: no official fee was found
Decision
6–24 months
What goes in the file (4)
  1. Your parent's Swiss certificate of citizenship or register extract
  2. The record establishing paternity, if your parents were not married
  3. Your own birth certificate
  4. Evidence of close ties to Switzerland: visits, family, language, contact with a Swiss representation
What goes wrong (1)
  • Unverified: SEM's current fee schedule for an Art. 51 application filed from abroad; SEM's facilitated-naturalisation fees for adults are generally in the CHF 600–900 range but the exact figure for this route was not confirmed on SEM's own page.

Checked 26 September 2026 · source ↗

Estimates are honest ranges from official fee tables and what families report; where a fee or time could not be confirmed, it says so.

08Where the records live

Where each record lives, and how to ask for it

  • birth

    The civil registry office (Zivilstandsamt) of the place of birth, or of the commune of origin (Heimatort) for a Swiss-born ancestor

    The commune of origin is named on a Swiss passport, identity card, or the family's old papers; the Federal Office of Justice's civil-status page lists each canton's registry offices.

    Ask
    By post, in German, French or Italian, depending on the canton · request page ↗
    Takes
    2–9 weeks
    Good to know (1)
    • Unverified: a single, published nationwide turnaround; each commune's Zivilstandsamt sets its own pace.

    Checked 26 September 2026 · source ↗

  • citizenship

    The civil registry office (Zivilstandsamt) of the parent's commune of origin (Heimatort)

    The commune of origin is named on a Swiss passport, identity card, or the family's old papers.

    Ask
    By post, in German, French or Italian, depending on the canton · request page ↗
    Takes
    2–9 weeks
    Good to know (1)
    • Unverified: a single, published nationwide turnaround; each commune's Zivilstandsamt sets its own pace.

    Checked 26 September 2026 · source ↗

Translations

Into
German, French or Italian
Who may translate
Any certified translator
About
$25–$50 a page

Swiss representations generally accept documents in English without translation for an initial review; a formal filing needs a certified translation into the canton's official language.

Checked 26 September 2026 · source ↗

The passport

Where
The Swiss embassy or consulate for your address, or the cantonal passport office if you live in Switzerland.
Fee
Not confirmed
Time
2–8 weeks
  • Unverified: the exact current consular passport fee for an application filed from the U.S.; Switzerland's domestic fee is published but consular surcharges vary by mission.

Checked 26 September 2026 · source ↗

09Law changes

Recent and pending changes

The legislative watch has no pending bill or recent ruling recorded for Switzerland.

The watch re-reads the official pages behind this guide every day. When one changes, a person re-checks the rule before anything here moves.

10Other doors

If descent doesn’t reach you

2 residence programs lead to Switzerland without an ancestor, each with its own law and road to citizenship.

11Sources

Every source on this page

3 laws and official pages behind the answers, then the offices and pages behind the records and filing. Records and filing checked 26 September 2026.

  1. LawSwiss Citizenship Act (Bürgerrechtsgesetz, BüG), SR 141.0, in force 1 January 2018 · Art. 1; Art. 7; Art. 37; Art. 51(2) and (3); Arts. 20 and 25; Arts. 26 and 27; Art. 51(1); Art. 24a
  2. LawState Secretariat for Migration: loss of Swiss citizenship (forfeiture at 25, reinstatement) · checked 26 September 2026
  3. LawState Secretariat for Migration: dual nationality (recognised without restriction since 1 January 1992)
  4. RecordsThe civil registry office (Zivilstandsamt) of the parent’s commune of origin (Heimatort): Your parent’s Swiss certificate of citizenship (Heimatschein) or civil-register extract · checked 26 September 2026
  5. RecordsHow to file: Citizen by descent (Art. 1) or facilitated naturalisation (Art. 51) · checked 26 September 2026

Not legal advice. Postern’s rulebook is written from the statutes and tested against documented cases; where the law is unsettled, the answer says “possible” or “unsure” rather than guess.

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