If you are an EU, EEA or Swiss citizen registering as a resident in Spain — the certificate known as the CUE, green certificate or certificado de registro de ciudadano de la Unión — you may be asked to prove comprehensive health cover. Whether you need private insurance depends on whether you work, are self-employed, are retired with an S1, or are economically inactive. This guide explains exactly when private cover is needed, what it must include, and the no-copay Sanitas options EU citizens commonly use, with English-speaking help at every step.
What it is
Any EU, EEA or Swiss citizen who plans to live in Spain for more than three months is legally required to register on the Central Register of Foreign Nationals. The proof of that registration is the certificado de registro de ciudadano de la Unión Europea — almost always shortened to CUE, and widely known to expats as the “green certificate” because of the small green A4 sheet (or, in some provinces, a green credit-card-sized document) that you receive. It also carries your NIE, your permanent Spanish foreigner’s identity number.
It is important to understand that the green certificate is not a visa. EU citizens do not apply for a visa to live in Spain — they have freedom of movement, and the CUE simply registers that they are exercising it. That is the key reason the health-insurance rules for EU citizens are different from the rules for non-EU applicants on the Non-Lucrative Visa or Digital Nomad Visa, who go through a consulate and must buy a specific visa-compliant policy.
You register at an Oficina de Extranjería or a designated national police station (Policía Nacional), normally using form EX-18 and after paying the tasa 790 código 012 fee. Depending on your personal situation, the office may ask you to show that you have healthcare cover — and that is where private health insurance can come in.
Do you need it
Not every EU citizen needs to buy private health insurance for the CUE. The requirement depends entirely on how you support yourself and whether you already have access to the Spanish public health system. Broadly, EU citizens fall into a few groups, and only some of them are asked for private cover.
If you are employed or self-employed (autónomo) in Spain and paying into Spanish social security, you generally gain access to public healthcare and usually do not need private insurance to register. If you are a retiree with an S1 from another EU country, your home state may cover your healthcare in Spain. But if you are economically inactive — living on savings, a pension that does not come with an S1, investments or remote means — and you are not yet in the public system, you will usually be asked to show comprehensive private health insurance plus proof of sufficient financial resources.
| Your situation | Public healthcare route | Private cover usually needed for CUE? |
|---|---|---|
| Employed in Spain (social security) | Public system via employment | No, in most cases |
| Self-employed / autónomo | Public system via social security | No, in most cases |
| Retired with a valid S1 | Home country funds Spanish cover | No, if the S1 is accepted |
| Economically inactive (savings/pension, no S1) | Not yet in the public system | Yes — comprehensive private cover |
| Student | Depends on enrolment and cover | Often yes, unless otherwise covered |
| Family member of an active EU worker | May be covered as a beneficiary | Sometimes — check each person |
Because the rules are applied by regional immigration offices, the safest approach is always to confirm what your specific office expects before your appointment. We can help with the insurance side; for the legal and immigration side you should rely on the official guidance or a qualified immigration adviser.
Inactive citizens
The single most common reason an EU citizen needs private health insurance for the green certificate is being economically inactive. This covers early retirees without an S1, people living off savings or investments, and anyone who is not working in Spain and not yet entitled to public healthcare here.
For this group, Spanish law requires two things at registration: sufficient financial resources so you will not become a burden on the Spanish state, and full health insurance cover in Spain. The insurance is expected to be genuinely comprehensive — broadly equivalent to the cover the public system would provide — rather than a limited or travel-style policy. In practice this means a full private medical policy from an insurer authorised in Spain, with no significant gaps, and (as explained below) ideally with no copayments.
What it must include
There is no single national checklist that every office publishes, but the cover that is reliably accepted for residency registration shares the same features. When EU citizens ask us what “comprehensive” really means in this context, this is the practical answer:
It is worth stressing what does not usually count: travel insurance, a basic policy with low annual limits, or a reimbursement-only product with a small cap are generally not treated as comprehensive cover for residency. The same applies to dental-only or add-on cover — useful, but not a substitute for a full medical policy. If you are weighing structures, our guide to copay vs no-copay cover explains why the no-copay route is usually the cleaner choice here.
EHIC, S1 or private
EU citizens often arrive holding a European Health Insurance Card (EHIC, or the UK GHIC) and assume it covers them for residency. It does not. The EHIC is designed for temporary stays — holidays and short trips — and is not intended to support someone who is moving to Spain permanently. For residence registration, the office is looking for cover that reflects you actually living here.
| Type of cover | What it is for | Typically suitable for the CUE? |
|---|---|---|
| EHIC / GHIC | Temporary visits and short stays | No — not for residence |
| S1 form | Healthcare funded by another EU state (often retirees/posted workers) | Often yes, where accepted and registered |
| Spanish social security (work/autónomo) | Public cover via employment or self-employment | Yes — you are in the public system |
| Convenio Especial | Paid access to public healthcare in some regions | Sometimes — check it meets the requirement |
| Travel insurance | Trips and emergencies abroad | No — not comprehensive residence cover |
| Comprehensive private health insurance | Full private medical cover in Spain | Yes — the usual route for inactive citizens |
If you have an S1, it is worth checking with the relevant authorities whether it will be accepted at your registration office before you buy a private policy — many retirees from EU countries can register on the strength of an S1. If you do not qualify for an S1 and are not working in Spain, comprehensive private insurance is normally the route that works.
Sanitas options
Because EU citizens register through the green-certificate route rather than a consulate visa, the visa-specific products — Sanitas Residents and Sanitas Residents Platinum — are designed for non-EU applicants on the NLV and DNV. For an EU citizen registering as a resident, the natural fit is a comprehensive, no-copay Sanitas health plan rather than a visa product. For EU citizens applying for the CUE, the key issue is usually comprehensive private medical cover for registration, not the visa-specific consulate certificate wording that non-EU NLV and DNV applicants need.
The two options EU citizens most commonly consider are Sanitas Más Salud Sin Copago for an individual and Sanitas Más Salud Familias Sin Copago for a couple or family. Both are full private medical plans with no copayments, which lines up with what registration offices look for. The exact benefits, acceptance and certificate wording always depend on the current Sanitas terms and your personal health declaration, so we confirm the details with you before you rely on any policy.
If you would like the wider picture of residency cover for EU citizens — including how the rules differ across regions — our EU residency health insurance guide and health insurance for EU citizens page go further. For retirees specifically, see health insurance for EU retirees.
No-copay
A copayment (copago) is a small fee you pay each time you use a service — a few euros per GP visit, specialist consultation or test. For everyday private healthcare a copay plan can be perfectly good and often cheaper. For residency registration, though, a no-copay (sin copago) policy is the safer choice, because some offices treat a copay structure as not fully equivalent to public cover.
Choosing no-copay comprehensive cover removes that uncertainty: the policy pays in full within the network, with no per-visit charge and no annual ceiling on care received in Spain. If budget is a concern, it is still usually better to register on a clean no-copay policy than to risk a query or a delayed appointment over a copay product. Our copay vs no-copay guide explains the trade-off in plain English.
Documents
Exact paperwork varies by office, but EU citizens registering for the green certificate are commonly asked for the following. Treat this as a practical starting point and confirm the current list with your own Extranjería office or police station:
If you are using private insurance, the office will want to see a clear certificate confirming the cover. We make sure the documentation you receive is suitable to present, although the final decision always rests with the registration office.
Office variation
This is the part that surprises many EU citizens: the green-certificate process is run by regional immigration offices and national police stations, and they do not all interpret the rules identically. One office may accept an S1 without question; another may scrutinise the wording of a private policy; a third may ask for proof of resources that a neighbouring province does not. Appointment availability and document lists also change over time.
The sensible approach is to check the current requirements for your specific office before your appointment, and to arrive with comprehensive, clearly-documented cover so there is nothing to query. We can help you get the insurance right; for the immigration procedure itself, follow the official guidance or speak to a qualified immigration adviser.
EU family members
If you are registering as a family, each member is considered on their own situation rather than as a single block. A working EU spouse may be covered through Spanish social security; an economically inactive partner or accompanying adult may need comprehensive private cover of their own; and children are assessed individually. A non-EU family member of an EU citizen follows a different process and may need a separate residence route, so do not assume one policy or one certificate covers everyone automatically.
In practice, EU families registering for the green certificate often use a comprehensive no-copay family plan such as Más Salud Familias Sin Copago, with each member checked separately. Our guide to health insurance for EU family members covers spouses, partners, children and mixed EU / non-EU families in more detail.
Where to next
Depending on where you are in the process, these pages will help you go deeper or take the next step:
Important information
Tell us your situation — working, retired, an S1 holder or economically inactive — and we will help you check whether private cover is needed and prepare a personalised, no-copay Sanitas quote suitable for green-certificate registration. Please check the actual current policy terms and your personal conditions before purchasing or using any Sanitas policy. Policies change and individual terms can vary.
We help EU citizens check their situation and compare no-copay Sanitas options in English.
FAQs
Common questions about health insurance for the CUE / green certificate. Requirements vary by province and office and change over time, so always confirm your local process before registering.