Residency in Spain for EU citizens: the green certificate explained

Three months after arriving in Spain, an obligation quietly kicks in. EU citizens who intend to stay longer than that have to register as residents, and the document that comes out of it is the small green card most people simply call "the green certificate". It is not a residence permit, it is not an identity document, and it is not optional.

The procedure itself is short. What causes most of the trouble is the financial requirement, where one figure gets repeated across guides and forums as though it were law. It is not.

What the green certificate actually is

The Certificado de Registro de Ciudadano de la Unión is proof that you are entered in the Central Register of Foreign Nationals. Article 7.5 of Royal Decree 240/2007 sets out what it contains: your name, nationality, address, your NIE number and the date of registration. Nothing else.

Two consequences follow from that short list. It carries no photograph, so it does not work as identification; you still carry your passport or national ID card. And it carries no expiry date, because the right it records comes from the Treaty, not from a permission the Spanish state grants and can withdraw at renewal time.

Since 2011 it is issued as a green card roughly the size of a credit card. Older certificates were printed on A4. Both remain valid, and there is no obligation to exchange one for the other, although a lot of people do it anyway because the card is easier to carry.

Who has to register, and when

Article 7.1 covers anyone who is going to stay in Spain for more than three months, and sorts applicants into four categories:

• Employees. Anyone working under a Spanish employment contract.
• Self-employed. Anyone registered as autónomo or running a business.
• Economically inactive. Retirees, people living off savings or income from abroad, anyone not working in Spain. This group must show sufficient resources and health cover.
• Students. Enrolled at a recognised institution, with health cover and a declaration of sufficient resources.

The deadline is three months from the date of entry. Family members of an EU citizen follow a related but separate procedure and receive a card rather than a certificate.

There is no fixed amount you must have in the bank

This is the claim worth correcting, because it appears almost everywhere and it puts people off applying.

Article 7.7 of Royal Decree 240/2007 is explicit: no fixed amount may be established, and the applicant's personal situation has to be taken into account. The same rule sits in article 8.4 of Directive 2004/38/EC, which prohibits member states from laying down a fixed sum and requires them to look at individual circumstances.

What the law does set is a ceiling on what can be demanded. The amount required may not exceed the threshold below which Spanish social assistance is granted, or the minimum contributory pension. In practice offices work from the non-contributory pension, which for 2026 is €8,803.20 a year, and add a smaller amount for each dependent family member.

So the figure you see quoted is a reference point, not a minimum balance. Income counts as well as savings: a pension, rental income, dividends, an employment contract abroad. If your circumstances are unusual, the law is on your side in asking for them to be assessed rather than measured against a round number.

The health cover requirement trips more people up than the money

For the economically inactive and for students, article 7.1 requires public or private health cover that provides full cover in Spain. That word does the work.

Travel insurance is rejected. So, routinely, are policies with copayments, waiting periods or annual limits, even when they are sold as expat cover. Spanish insurers market specific policies for this procedure precisely because ordinary ones fall short. If you are relying on a public system in another EU country, an S1 form is the document to bring.

What to bring

• Form EX-18, completed and signed.
• Passport or national identity card, valid, plus a copy.
• Proof of your category: employment contract or Social Security registration, autónomo registration, evidence of resources and insurance, or a student enrolment certificate.
• Proof of payment of the fee, form 790 code 012. Orden PJC/617/2025 sets it at €12.00.

Applications are made at the Oficina de Extranjería or a national police station with an immigration desk, in the province where you live, by prior appointment. The certificate is normally handed over at the appointment itself.

Most offices also ask for your padrón registration, since it evidences your address. Our guide on registering on the padrón covers that step, and it is worth doing first.

Green certificate, TIE, NIE and padrón

Four terms, four different things, and they are constantly confused.

The NIE is your tax and identification number. It has no expiry and says nothing about where you live. Our guide explains what it is and who needs one.

The green certificate records that an EU citizen is registered as a resident. Your NIE appears on it.

The TIE is the physical residence card issued to non-EU nationals. EU citizens do not get one.

The padrón is your registration with the town hall. It is a municipal record, separate from all of the above.

After five years

Five years of continuous legal residence gives a right of permanent residence, under article 10. It is applied for with the same form and produces a certificate marked permanente.

Worth doing, even though the original certificate does not expire. Permanent status is harder to lose, it removes the resources and insurance conditions entirely, and it is the document that gets asked for in nationality and long-term benefit files.

Frequently asked questions

Does the green certificate expire?
No. There is no expiry date on it and no renewal procedure. Anyone telling you it needs renewing every five years is confusing it with the permanent residence certificate, which is a separate application, not a renewal.

Do I have to exchange my A4 certificate for the card?
No. Both formats are valid. The card is simply more practical.

Does registering make me tax resident in Spain?
Not by itself. Tax residency turns on separate criteria, principally the 183-day rule and where your main economic interests sit. Registering is evidence a tax authority may weigh, but it does not decide the question.

What happens if I miss the three-month deadline?
Penalties are provided for but rarely applied in practice. The real cost is practical: without the certificate a great deal in Spain becomes difficult, from public healthcare to a mortgage.

Why Buenaley?

Buenaley is a Spanish law firm working with international clients. Registration rarely stands alone. It usually sits alongside a NIE, a purchase, a move of tax residence or a family file, and the order matters more than people expect.

• Advice on the right sequence, so procedures do not stall on a missing document
• NIE, padrón and residency handled together where they overlap
• Fixed price, agreed in advance

Moving to Spain and unsure what to arrange first? Put your situation to us, or start with the NIE page.