Switzerland remains one of the top destinations for French companies expanding internationally. Its geographic proximity, economic dynamism and appeal make it a preferred market for short-term assignments, secondments, expatriations and local hires.
Sending an employee to work in Switzerland is not just a change of workplace. This mobility has significant consequences for payroll, social security, taxation, labour law and reporting obligations.
At Expatries-Paies.com, we support French companies in the full management of their expatriate, seconded and cross-border employees in Switzerland, securing their social and administrative obligations.
Why send an employee to Switzerland?
French companies regularly operate in Switzerland across sectors including industry, pharmaceuticals, banking, insurance, watchmaking, construction, engineering, IT, consulting, luxury, healthcare, research, transport and logistics.
Assignments may involve a few weeks' work, secondments of several months, long-term expatriation, local hires, or executives of Swiss subsidiaries. Each situation requires a specific analysis.
Which status should you choose?
The choice of status is the first step of any mobility project. Depending on the circumstances, several options can be considered.
Secondment — When conditions are met, the employee can remain affiliated to the French social security scheme during a temporary assignment in Switzerland, preserving French social rights while meeting business needs.
Expatriation — For long-term assignments, or when secondment is no longer applicable, the employee generally falls under the Swiss social protection scheme. This requires adapting payroll and completing numerous formalities.
Cross-border worker — Some employees live in France while working daily in Switzerland. This status has particularities regarding health insurance, taxation, social contributions and payroll, requiring a personalised analysis.
Local hire — In some cases, entering into a contract under Swiss law is the most appropriate solution.
Social protection
Switzerland has a specific social protection system. Depending on the status chosen, several situations may apply: continued French affiliation, affiliation to the Swiss scheme, supplementary cover, or membership of the Caisse des Français de l'Étranger (CFE) where relevant.
Taxation of employees in Switzerland
Applicable taxation depends on the employee's tax residence, the length of the assignment, the place of work and the France–Switzerland tax treaty. A poor analysis can lead to double taxation or additional reporting obligations.
How to manage payroll
Depending on your organisation, several solutions are possible: French payroll, Swiss payroll with local partners, Split Payroll, Shadow Payroll, or coordination between group entities.
Main employer obligations
A Swiss assignment may require analysing the employee's status, secondment formalities where applicable, managing social contributions, issuing payslips, social declarations and administrative follow-up.
Most common mistakes
Our audits regularly reveal: confusion between expatriation and secondment, poor management of cross-border workers, errors in social contributions, incorrect application of the tax treaty, poorly coordinated Split Payroll, incomplete documentation.
Frequently asked questions
Can an employee be seconded to Switzerland? Yes, subject to meeting the conditions set out in the applicable agreements and the necessary administrative formalities.
Does an expatriate keep French social protection? It depends on the status chosen and the rules applicable to their situation.
Must payroll be run in Switzerland? Not necessarily — French payroll, Swiss payroll, or a combination of both can be set up.
Is Split Payroll common with Switzerland? Yes, many international groups split remuneration between France and Switzerland to meet operational and regulatory constraints.
Besoin d'un accompagnement pour Switzerland ?
Nos experts en paie internationale réalisent un audit personnalisé de votre projet de mobilité vers Switzerland.