How long is the short-term L permit in Thurgau?

The L permit has a maximum validity of 1 year and is not automatically renewable. Each renewal must be requested by both parties (employer and employee) with a new application to the Cantonal Migrant Service, at least 30 days before the deadline. The effective duration of the leave may be less than one year if the employment contract is shorter. The application must arrive before the start of employment.

Can I change employer with the L permit?

No, the L permit is bound to the employer specified in the original application. If you wish to change employer before the deadline, the first permit expires and you must submit a new application with the second employer. It is not possible to transfer the permit from one company to another. If the first contract ends, the L permit expires immediately, even if it has not expired.

How do I transit from permit L to permit B in Thurgau?

The transition from L to B is not automatic. And granted if the employment lasts permanently (at least 2 years), the employer supports the request and there are no legal impediments. The B permit is renewable every 5 years and allows you to change employer with notification to the authority. It offers greater employment stability and access to wider cantonal social benefits. Please contact the Cantonal Migrant Service to check the specific criteria of Thurgau.

Which office handles L permits in Thurgau?

The Migrant Service of Thurgau (Migrationsamt) is competent. The application must be submitted by the employer (not the employee) at least 4 weeks before the start date of work. Investigation times vary (2-8 weeks) depending on whether prior assessment of the labour market is necessary. Contact the cantonal office directly for updated forms and procedures.

What happens if my L permit expires without renewal?

The right of residence ceases immediately. If you continue to work or reside in Switzerland without a valid permit, you are in an irregular situation. You must leave the Swiss territory or submit a new permit application (L or B, depending on the conditions). There are no extensions of tolerance: the deadline is final. Be sure to submit your renewal at least 30 days before it expires.

Permit L short duration Thurgau: extension and renewal

By Redazione Frontaliere Ticino (AI-generated text) · Published on 7 September 2026

Swiss administrative office with temporary work permit L forms and documents

The L permit allows you to work in Switzerland for periods of up to one year. Find out how it works in Thurgau, the extension conditions and the switch to the B permit.

Context

In brief

Permit L valid for up to 1 year for work in Switzerland
Renewable with agreement between employer and employee
Transition to Permit B possible if the employment relationship continues
Tied to the employer and the duration of the contract

Key facts

What: Short-term Permit L (Bewilligung L)
Maximum duration: 1 year, renewable
Where: Canton of Thurgau (cantonal administration for approval)
Who: Foreign citizens employed by Swiss employers
Renewal: On joint request, if the employment relationship continues

The short-term Permit L is the first step for those intending to work in Switzerland. It allows foreign citizens to work for periods of up to one year, renewable. Nationally, the Permit L is regulated by the State Secretariat for Migration (SEM) and federal ordinances on the labor market.

In Thurgau, as in the other 25 Swiss cantons, the administrative management of Permit L is the responsibility of the competent cantonal authority. There is no separate Thurgau Permit L — rather, the canton applies federal standards with its own procedures and decision times.

Maximum validity and constraints

The maximum validity of the Permit L is set at 1 year. Unlike the Permit B (residence, renewable every 5 years), the Permit L is strictly linked to three factors: the specific employer, the type of work activity, and the duration of the employment contract. You cannot change employers without a new permit application. If the contract ends, the right of residence ceases.

The actual duration of the permit may be less than one year if the employment contract is shorter. For example, a 6-month contract results in a 6-month Permit L.

Who can obtain it in Thurgau

The Permit L is primarily intended for foreign workers hired for temporary, seasonal, or short-term projects. In Thurgau, access depends on the sector: some areas (agriculture, catering, construction) have streamlined procedures for seasonal Permit L; others require a Swiss labor market analysis (preliminary check) to verify that no local workforce is available.

To apply for a Permit L in Thurgau, the employer must submit an application to the cantonal migration service within crucial deadlines: normally, the request must be submitted at least 4 weeks before the start of employment.

Operational details

Extension and renewal of the L permit

The extension of the L permit in Thurgau is done upon joint request: the employer and the employee must agree to continue the employment relationship and submit a new application to the cantonal migration service. It is not automatic. The renewal application must be received BEFORE the expiry of the current permit.

In practice, if your L permit expires on December 31, 2026, and you wish to continue with the same employer, both parties must sign and submit the renewal forms at least 30 days in advance — times may vary depending on the workload of the cantonal office. Once expired, there are no tolerance extensions: the right of residence ceases immediately.

Each renewal restarts the count: after the first L permit of 1 year, a second L permit is possible. However, if the employment lasts more than 2 years, it is more convenient to transition to a B permit, which offers greater job stability and flexibility.

Transition from L permit to B permit

The B permit (residence) represents a subsequent step in the progression of Swiss residence permits. It is renewable every 5 years (instead of 1 year) and offers greater flexibility in changing employers. The transition from L to B is not automatic: it must be requested from the cantonal migration service and evaluated based on stable criteria.

In Thurgau, the transition L → B is granted if the employment continues stably (permanent contract or at least 2 years of continuous employment), the employer supports the request, and there are no obstacles to residence (unjustified absences, serious infractions, etc.). The B permit allows you to stay in Switzerland even if you change employers (notifying the new employment), and opens access to broader social benefits (housing subsidies, tax deductions, etc.) at the cantonal level.

Constraints related to the employer

An important limitation of the L permit: it is tied to the employer declared in the application. If the employment ends prematurely, the permit lapses. You cannot transfer the L permit to a new employer — you must let the first permit expire and apply for a new one.

This restriction protects the Swiss labor market but limits the worker's mobility. If you find new employment before the expiry, you must terminate the first contract, wait for the possible expiry of the L permit (or request its early cancellation), and then submit a new application with the new employer.

In Thurgau, the migration service communicates directly with the employer to verify the persistence of employment and compliance with Swiss labor market regulations.

Recommended tools

For an updated estimate, use the net salary calculator and the CHF-EUR exchange comparator.

Key points

How to request the L permit in Thurgau: step-by-step

Phase 1: Preparation (1-2 weeks before the start of work) 1. The employer collects documents: signed employment contract, copy of the candidate's passport, declaration of compliance with wage and safety regulations. 2. Check with the cantonal migration service whether the sector requires prior labor market assessment (common for construction, catering, domestic services). 3. Fill out the official application form (downloadable from the official cantonal website turgovia.ch or requested from the office).

Phase 2: Submission of the application The application must reach the competent service at least 4 weeks before the start date of work (to allow for processing). Processing times vary: generally 2-4 weeks for non-critical sectors, up to 6-8 weeks if prior assessment is necessary.

Phase 3: Processing and approval The cantonal office verifies the documentation, contacts the employer for confirmations, and issues the L permit (physical document or digital clearance). There are no federal administrative costs for issuing the L permit, although the canton may charge minimal administrative fees (variable by canton).

Phase 4: Registration with the Municipality Once the L permit is received, the worker must register with the Municipality or the Population Office of the place of residence within 14 days of arrival. This step is mandatory to access basic services (LAMal, bank account, insurance).

Documents required for the application

Valid passport (or ID card for EU/EFTA citizens)
Original signed employment contract (duration, duties, gross monthly salary)
Wage compliance declaration (the employer certifies that the salary is not below Swiss market levels)
Certificate of good conduct (for some sectors)
Completed official cantonal forms in German or Italian

Crucial deadlines for renewal

Submit the renewal application at least 30 days before the expiration date. If it expires without renewal, the right of residence ceases immediately: the worker must leave Switzerland or submit a new application for a permit (L or B, depending on the conditions).

Use the salary calculator to verify that the proposed salary meets Swiss standards for your sector. Consult the LAMal information to understand your health insurance obligations (mandatory even with an L permit, to be arranged within 3 months of arrival). Administrative clarity from the start simplifies future renewals and transitions to the B permit.

Frequently Asked Questions

How long is the short-term L permit in Thurgau?: The L permit has a maximum validity of 1 year and is not automatically renewable. Each renewal must be requested by both parties (employer and employee) with a new application to the Cantonal Migrant Service, at least 30 days before the deadline. The effective duration of the leave may be less than one year if the employment contract is shorter. The application must arrive before the start of employment.
Can I change employer with the L permit?: No, the L permit is bound to the employer specified in the original application. If you wish to change employer before the deadline, the first permit expires and you must submit a new application with the second employer. It is not possible to transfer the permit from one company to another. If the first contract ends, the L permit expires immediately, even if it has not expired.
How do I transit from permit L to permit B in Thurgau?: The transition from L to B is not automatic. And granted if the employment lasts permanently (at least 2 years), the employer supports the request and there are no legal impediments. The B permit is renewable every 5 years and allows you to change employer with notification to the authority. It offers greater employment stability and access to wider cantonal social benefits. Please contact the Cantonal Migrant Service to check the specific criteria of Thurgau.
Which office handles L permits in Thurgau?: The Migrant Service of Thurgau (Migrationsamt) is competent. The application must be submitted by the employer (not the employee) at least 4 weeks before the start date of work. Investigation times vary (2-8 weeks) depending on whether prior assessment of the labour market is necessary. Contact the cantonal office directly for updated forms and procedures.
What happens if my L permit expires without renewal?: The right of residence ceases immediately. If you continue to work or reside in Switzerland without a valid permit, you are in an irregular situation. You must leave the Swiss territory or submit a new permit application (L or B, depending on the conditions). There are no extensions of tolerance: the deadline is final. Be sure to submit your renewal at least 30 days before it expires.