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Canton of Solothurn

Naturalisation in the canton of Solothurn

All the information on requirements, costs, duration and specifics of naturalisation in Solothurn.

By · Updated:

Fact sheet

Capital
Solothurn
Language
German
Population
289'792
Abbreviation
SO

Requirements

✓
Residence in Switzerland At least 10 years
✓
Residence in canton Solothurn At least 4 years
✓
Residence in the municipality At least 2 years
✓
Language level At least B1 spoken in German
✓
Residence permit Settlement permit C required
✓
Naturalisation test At least 60% correct answers
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Cost of naturalisation in Solothurn

B
Federal fee CHF 100
K
Cantonal fee CHF 400 – 800
G
Municipal fee CHF 300 – 1500
Estimated total cost CHF 800 – 2'400
Use the detailed cost calculator →

Duration and specifics

Estimated process duration: 12–24 months
Specifics:
Known for the Baroque city of Solothurn. 4 years of residence in the canton and 2 years in the municipality are required. A naturalisation course of at least 12 hours is compulsory for foreign nationals.

Official authorities website

The process in Solothurn: 5 steps

Ordinary naturalisation in Solothurn follows a clear process. The canton checks integration, residence, language and knowledge.

  1. Check the requirements: At least 10 years of residence in Switzerland, of which 4 in canton Solothurn and 2 in your municipality. Settlement permit C.
  2. Submit the application: Application with your municipality of residence. Submit documents, pay fees, prove your identity.
  3. Proof of language: At least level B1 spoken in a national language. Recognised certificates: fide, Goethe, telc, DELF/DALF.
  4. Naturalisation test: 48 questions on geography, history, politics and everyday life. At least 60% correct answers to pass.
  5. Naturalisation interview and decision: Personal interview with the municipality. Decision by municipality, canton and Confederation. Takes 12–24 months.

Documents you need

The municipality may ask for additional documents depending on your case. The following documents are practically always required in Solothurn:

  • Permit C for foreign nationals (settlement permit)
  • Valid passport or ID card
  • Birth certificate, marriage certificate if applicable
  • Recent Swiss criminal record extract
  • Debt collection register extract for the last 5 years
  • Confirmation from OASI (AHV/AVS) and tax authorities (no open debts)
  • Language certificate (at least B1 spoken)
  • Proof of years of residence (residence confirmations)
Tip: Ask your municipality for the current checklist before submitting. Requirements change from time to time.

Ready for the naturalisation test in Solothurn?

In canton Solothurn you need to answer 60% of the questions correctly. Practise now with over 300 questions!

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Frequently asked questions about naturalisation in Solothurn

Total costs amount to CHF 800–2'400. Solothurn is thus in the mid-range of Swiss cantons. The cantonal fee is CHF 400–800, the communal fee CHF 300–1'500.

The process takes 12 to 24 months. You need 2 years of residence in the canton and 2 years in the municipality, as well as a total of 10 years in Switzerland.

You need language level B1 spoken and A2 written German. Solothurn is a purely German-speaking canton.

Naturalisation in other cantons

Requirements and costs differ. Here are the largest cantons compared:

Zurich CHF 1'100–3'600 Bern CHF 900–2'900 Vaud CHF 700–1'900 Aargau CHF 1'100–3'800 St. Gallen CHF 1'000–3'100

Show all 26 cantons →