Starting work in Geneva from France triggers a series of administrative choices, some of them irreversible. This guide sums up the essentials to plan for in your first few weeks.
From the start of your work in Geneva, you have a 3-month window to exercise your "right of option": choosing between Swiss LAMal, the French CMU, or an equivalent private insurance in France. After this deadline, LAMal affiliation becomes automatic and later changes are tightly restricted.
Monthly premium generally around CHF 400 depending on the fund and model chosen. Access to care in Switzerland and France via the European coordination system (S1 form).
Contribution calculated on your reference taxable income (about 8% above an allowance). Direct access to the French healthcare system, without cross-border coordination formalities.
This choice has a lasting impact: it determines your health budget and the care network you can access, and proves more or less advantageous depending on your family situation (spouse, children, possible dual affiliation). A costed comparison before the end of the 3-month window is essential; the default choice isn't always the most favourable.
The G permit is the residence permit specific to cross-border workers, issued for the duration of the employment contract (or 5 years, renewable, for a permanent contract). It governs your tax regime and your status with regard to Swiss social insurance.
It is deducted directly from your salary by your Swiss employer, at a rate depending on your income and family situation. A retroactive adjustment remains possible in some cases (family dependants not accounted for, particular circumstances).
Subject to certain conditions on income earned in Switzerland, you can ask to be taxed under the ordinary scale rather than withholding tax alone. This can open up additional deductions (3rd pillar, actual professional expenses, maintenance payments) depending on your situation.
A costed comparison to make the right choice within the 3-month window.
Withholding tax, quasi-residence, available deductions.
Conditions, renewal and full administrative implications.
Eligibility and cross-border tax-saving strategy.
Every cross-border worker's situation is different depending on the canton of employment, the place of residence in France and the family situation. We support cross-border workers every day through these structuring choices, fully independent of both Swiss and French insurers.
After the 3-month window, changes are tightly restricted and generally only possible on specific events (change of status, end of employment). The initial choice therefore needs careful thought.
No, some benefits differ by status. An individual check is needed for your precise situation.
Yes, provided you contribute to the Swiss AVS. See our dedicated page for the detailed conditions.
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