How to be covered by the CNS when you settle in Luxembourg
If you work in Luxembourg, your employer declares you to the Centre commun de la sécurité sociale (CCSS) within 8 days: you are then covered by the Caisse nationale de santé (CNS, for the private sector; the public sector has its own funds) and you automatically receive your social security card, one side of which is your European Health Insurance Card (EHIC). Your dependent family can be co-insured. If you live in Luxembourg with no job or other cover, you can join the optional voluntary health insurance, with a 3-month waiting period before the first reimbursements.
- Costs
- Contributions deducted from salary; voluntary insurance: €155.19 per month (5.60% of the minimum social wage of €2,771.33, according to the CCSS in 2026); social security card free
- Timeframes
- Declaration by the employer within 8 days; card in 3 weeks; 3-month waiting period for optional voluntary insurance
Steps
- Before leaving: get the EHIC from your current country for unforeseen care in the first weeks. If your country of origin remains responsible for your health (pensioner who only receives a pension from that country, posted employee), request an S1 form and hand it to the Luxembourg fund on arrival.
- Employee: your employer declares you to the CCSS within 8 days of your entry into service. You have nothing to do.
- Self-employed: affiliate yourself to the CCSS with the entry declaration form for self-employed workers.
- Your card: the CCSS issues it automatically and sends it by post to your official residence address.
- Your family: have your spouse or partner and your children co-insured (children entitled to family allowances, or under 30 with resources below the REVIS) by a simple request to the fund, with proof of the relationship (family record book for example). Online via MyGuichet.lu, or at the counter, by telephone, email or post.
- No job and no other cover: apply for admission to the voluntary health and maternity insurance with the CCSS using the form "Demande d'admission à l'assurance maladie volontaire" (by post, fax or email).
Documents
- Employee: nothing to provide yourself, the employer declares.
- Self-employed: entry declaration form for self-employed workers.
- Co-insurance: request stating the identity and the relationship with the main insured person, and supporting documents (family record book, etc.).
- Voluntary insurance: admission request to the CCSS, with an affiliation certificate (S041 or co-insurance certificate) from your last insurance body in another country if you were insured elsewhere, or a certificate of residence or accommodation if you have never been insured; direct debit mandate if you choose automatic debit.
- Pensioner or posted worker covered by another country: S1 form.
Costs and timelines
- Employee: contributions deducted directly from salary by the employer.
- Voluntary insurance: contribution calculated on the minimum social wage (€2,771.33) at the rate of 5.60%, currently €155.19 per month according to the CCSS; it runs from the day of the application (optional insurance). To be rechecked at each indexation of the minimum social wage.
- Social security card: free, issued within 3 weeks after the declaration to the CCSS.
- Waiting period: with optional voluntary insurance, care is only reimbursed after a 3-month waiting period from the application.
Common pitfalls
- The 3-month waiting period of voluntary insurance. If you arrive without a job and without cover, plan on insurance for this period, or keep your home cover (S1).
- The EHIC is not a settling-in insurance. It covers necessary care during a temporary stay, not planned care, nor private care, nor repatriation.
- A co-insured person has only one main insured person. You cannot be co-insured by two people at once.
- Not paying the voluntary insurance. It stops automatically after two unpaid instalments.
- For a stay as an inactive person, the commune requires health insurance covering all risks in Luxembourg (sheet LU-SEJOUR-TOUS-001).
What changes by country of origin
- EU and EEA citizens: European coordination: EHIC for temporary stays, S1 if your country of origin remains competent, otherwise affiliation in Luxembourg.
- Swiss nationals: European coordination also applies to Switzerland (EHIC, S1).
- British nationals (Scots included): before leaving, the British GHIC card (free, reserved for UK residents) has replaced the EHIC for temporary stays. If you work in Luxembourg, affiliation by the employer is the same. For the rest, rights flow from the EU–UK agreement: a resident who does not work can join the CNS voluntarily, and someone entitled to a British S1 (for example with a British State pension) registers it with it (GOV.UK).
Official sources (8) ›
- Guichet.lu, "Affiliation à la sécurité sociale" (employee or self-employed person and their family, last modified on 07.07.2017)
- Guichet.lu, "Carte de sécurité sociale / carte européenne d'assurance maladie" (last modified on 26.06.2024)
- Guichet.lu, "S'affilier à l'assurance maladie-maternité volontaire" (last modified on 14.01.2014)
- CCSS, "S'affilier volontairement à l'assurance maladie" (conditions, 3-month waiting period, monthly contribution of €155.19)
- Your Europe, "Votre couverture médicale" in the host country (last checked 19/08/2026)
- Your Europe, "Couverture médicale lors de séjours temporaires" (last checked 16/09/2026)
- GOV.UK, "Healthcare in Luxembourg" (voluntary insurance with the CNS, S1 registration)
- NHS, "Get healthcare cover abroad with a UK GHIC or UK EHIC" (card for UK residents)