Luxembourg is one of France's leading economic partners, hosting tens of thousands of French employees every day. French companies develop subsidiaries there, second staff, hire locally, or employ cross-border workers.
This geographic proximity should not obscure the complexity of the rules applicable to payroll, social security, taxation and international mobility.
Why grow your business in Luxembourg?
Luxembourg attracts many French companies thanks to its stable economic environment, its strategic position at the heart of Europe, its recognised financial sector, and its dynamism in services, industry and new technologies.
Which status for your employee?
Secondment — the employee can be temporarily seconded to Luxembourg while keeping their French social security affiliation. Particularly suited to one-off assignments or service contracts.
Expatriation — when the assignment is meant to last, the employee generally falls under the Luxembourg social security scheme, requiring specific payroll and contribution management.
Cross-border worker — Luxembourg has a very large number of cross-border workers living in France. This status has particularities regarding social security, taxation, working time and cross-border telework.
Local hire — in some cases, a Luxembourg employment contract is the most appropriate solution.
Social protection and taxation
The choice of social security scheme depends on the status, the length of assignment and applicable European agreements. Taxation depends on tax residence, the France–Luxembourg tax treaty, the number of days worked in each country and the effects of telework.
Cross-border telework
The number of days teleworked from France can affect social security, taxation, employer obligations and payroll. A clearly defined telework policy helps secure your organisation and avoid corrections.
Most common mistakes
Misclassification of status, poor management of cross-border workers, errors linked to cross-border telework, anomalies in social contributions, lack of coordination between the parties involved.
Frequently asked questions
Can an employee be seconded to Luxembourg? Yes, when regulatory conditions are met and the necessary formalities are completed.
Are cross-border workers subject to specific rules? Yes, their situation must be analysed considering residence, working time in each country, and applicable social security and tax rules.
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