What is the difference between permit B and permit L in the canton of Solothurn?

The L permit is a short-term permit, valid for up to 1 year, dedicated to seasonal or temporary workers. The B permit is a residence permit that is renewable every 5 years, suitable for those who intend to settle in Switzerland for the long term. In the canton of Solothurn, as in the whole of Switzerland, the B permit offers greater stability and equal rights to Swiss citizens in many aspects of working and social security life.

Can I change employer while I have an active B permit?

Yes, you can change employers, but you must notify the authorities. If the new employer is in the same canton of Solothurn, the procedure is usually simplified. If the new employer is in a different canton, a new cantonal approval may be required, especially for non-EU/EFTA nationals. We recommend contacting the cantonal migration office to clarify the specific procedure.

How does health insurance (LAMal) work during leave B?

Sickness insurance is compulsory for all residents in Switzerland, including B permit holders. Within 3 months of arrival in the canton of Solothurn, you must take out a sickness fund (LAMal). Premiums are calculated per capita based on your age and chosen deductible (CHF 300 to CHF 2,500 per year). Canton Solothurn may offer subsidies to reduce premiums according to income criteria.

Does the B permit give me access to social security (AVS and LPP)?

Yes. Once you hold a B permit and are employed in Switzerland, you are automatically enrolled in the AVS with contributions of 5.3% for the employee. If your salary exceeds the coordination threshold, you are also enrolled in a corporate or collective pension fund (LPP), with a variable rate by age group (from 7% to 18%). These contributions are withheld directly from your paycheck.

What happens if my employment contract ends before the B leave expires?

If the contract ends, the B permit remains formally valid until it expires, but you cannot continue to work in Switzerland without a new approved contract. It is important to find a new occupation quickly or consult the Canton Solothurn migration office to evaluate alternative options (e.g. C permit if you acquire long-term residency requirements).

Residence permit B Slab: requirements and renewal (cross-border guide)

Di Redazione Frontaliere Ticino · Published on 24 August 2026

Swiss residence permit type B showing personal data and renewal expiration date on desk

Complete guide to permit B in the canton of Solothurn. Discover requirements, documents to be produced, duration 5 years and renewal procedure within 3 months of expiry.

Context

In a nutshell

Permit B is a renewable residence permit for long-term residents in Switzerland
Validity 5 years and renewable at the migration office of the canton of Solothurn
Basic documents: employment contract, certificate of residence, proof of financial means
Renewal required within 3 months before expiry

Key facts

What it is: Residence permit for residence and renewable work
Who issues it: SEM (Secretariat of State for Migration) with canton Solothurn
Duration: 5 years renewable
Recipients: EU/EFTA citizens and foreign workers with approved contract
Renewal: Within 90 days before the deadline

Residence permit B allows a foreigner to reside and work in Switzerland for a medium-long period. Unlike the L permit (up to 1 year), the B permit is renewable and offers greater stability for those who decide to settle in the country. In the canton of Solothurn, as in the rest of Switzerland, this title is administered at the federal level by the State Secretariat for Migration (SEM) in coordination with the local cantonal authorities.

The application is filed with the migration office of the canton where the applicant intends to reside or already resides. For EU and EFTA (European Free Trade Association) citizens, the B permit is generally a simplified procedure, while for third-country nationals the standards are stricter and require compliance with specific criteria relating

Operational details

Documents and requirements to obtain permit B

To obtain the B permit in Switzerland, regardless of the canton, you must have complete and verified documentation. An incomplete application results in delay or rejection.

The employment contract represents the fundamental document: it must be signed by both parties, specify the type of tasks, the expected duration, the gross salary and the working conditions. In the canton of Solothurn, the employer must be registered with the competent authorities. The residence certificate proves that the applicant has found accommodation or intends to move to the canton, which is essential for the procedure. Proof of financial means consists of a bank statement attesting to a stable economic situation and the ability to maintain oneself independently during the stay. A valid passport or travel document is required for citizens of all countries. Finally, the application for admission must be completed according to the instructions provided by the SEM.

For EU/EFTA citizens, the requirements are greatly simplified. The canton of Solothurn usually accepts only the presentation of the employment contract and identity document, without the need for a detailed analysis of the labour market. This accelerated procedure reflects the agreement on the free movement of persons between Switzerland and the European Union.

Practical implications in the canton of Solothurn

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Key points

A step-by-step procedure for renewing the B permit is essential. Once the B permit is obtained in the canton of Solothurn, it is crucial to respect the renewal terms. The procedure is structured into well-defined phases:

Verify the expiration date on the title. It is recommended to mark it in the agenda with at least 4 months in advance. Contact the migration office of the canton of Solothurn at least 3 months before the expiration date for information on the local renewal procedure and to obtain the updated application form. Gather the required documentation: the completed renewal form, a valid passport, a current residence certificate, an ongoing employment contract (or a new contract if changed in the meantime), and proof of continuous residence in the canton.

The application can be submitted in person at the migration office, by registered mail with signature, or through the online portal if the canton allows it. Always verify the accepted modalities by the office. The renewal procedure usually takes 4–8 weeks. During this period, the previous title remains valid if the application is submitted on time. Once approved, the new B permit will be available for pickup at the migration office of the canton of Solothurn. It is essential to pick it up within the communicated term, otherwise, the file may be archived.

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Frequently Asked Questions

What is the difference between permit B and permit L in the canton of Solothurn?: The L permit is a short-term permit, valid for up to 1 year, dedicated to seasonal or temporary workers. The B permit is a residence permit that is renewable every 5 years, suitable for those who intend to settle in Switzerland for the long term. In the canton of Solothurn, as in the whole of Switzerland, the B permit offers greater stability and equal rights to Swiss citizens in many aspects of working and social security life.
Can I change employer while I have an active B permit?: Yes, you can change employers, but you must notify the authorities. If the new employer is in the same canton of Solothurn, the procedure is usually simplified. If the new employer is in a different canton, a new cantonal approval may be required, especially for non-EU/EFTA nationals. We recommend contacting the cantonal migration office to clarify the specific procedure.
How does health insurance (LAMal) work during leave B?: Sickness insurance is compulsory for all residents in Switzerland, including B permit holders. Within 3 months of arrival in the canton of Solothurn, you must take out a sickness fund (LAMal). Premiums are calculated per capita based on your age and chosen deductible (CHF 300 to CHF 2,500 per year). Canton Solothurn may offer subsidies to reduce premiums according to income criteria.
Does the B permit give me access to social security (AVS and LPP)?: Yes. Once you hold a B permit and are employed in Switzerland, you are automatically enrolled in the AVS with contributions of 5.3% for the employee. If your salary exceeds the coordination threshold, you are also enrolled in a corporate or collective pension fund (LPP), with a variable rate by age group (from 7% to 18%). These contributions are withheld directly from your paycheck.
What happens if my employment contract ends before the B leave expires?: If the contract ends, the B permit remains formally valid until it expires, but you cannot continue to work in Switzerland without a new approved contract. It is important to find a new occupation quickly or consult the Canton Solothurn migration office to evaluate alternative options (e.g. C permit if you acquire long-term residency requirements).