NIE number in Spain

The NIE — Número de Identidad de Extranjero — is the number Spain assigns to a foreigner so that its administration can tell one person from another. It grants nothing and costs little. Without it, a property purchase in Spain stops before it starts.

What the NIE is

The number is personal and permanent. It is assigned once, keeps a fixed format of a leading letter, a block of digits and a check letter, and does not change when you move, marry or later become a resident. For anyone without Spanish nationality it doubles as the tax identification number, which is why it turns up on every tax form connected with the flat.

Residents carry it on the TIE card. Non-residents receive it as a certificate on paper. The document differs; the number does not.

Companies are not given a NIE at all. A legal entity holds its own tax number, so a purchase made through a company needs that number instead — plus, usually, a NIE for whoever signs on the company’s behalf.

Where it is needed

The requirement is not a formality invented to inconvenience foreigners. Every entry in the tax register and in the property register has to name a party, and a register cannot name someone it is unable to identify. In practice the number is asked for when:

• signing the notarial deed of purchase, and registering it afterwards
• filing and paying the purchase taxes
• opening a Spanish bank account, and arranging a mortgage
• putting water, electricity and internet into your own name
• insuring the flat, and being billed for the annual municipal property tax
• selling the flat later, or inheriting one

A purchase can be signed by a representative holding a notarised power of attorney, but a representative cannot borrow your identity. The number still has to exist, in your name, before the deed can be authorised.

Where and how it is applied for

Three routes are usual, and the right one depends on where you happen to be:

• at a Spanish consulate in your country of residence, which is often the calmest option and can be done before you travel
• in Spain, at an immigration office or a national police station with that competence, by prior appointment
• through a representative in Spain acting under a power of attorney, which has to be notarised and, when signed abroad, apostilled and translated

In each case the file consists of the standard application form for the assignment of a number, a passport with a copy, and evidence of why you need one — a reservation document or a letter from the developer does the job. A government fee is paid on the official payment form, normally at a bank, and the receipt goes in with the application. Forms, fees and appointment systems are revised from time to time, so take the current ones from the police or consular website rather than from a forum thread.

Buyers in SAVO’s Spanish project tend to start this early, since it is the appointment rather than the paperwork that consumes the time. Everything else at the notary stage assumes the number already exists.

What the NIE is not

The common misunderstanding is that the number confers something. It confers nothing:

• it is not a residence permit, and adds no right to stay beyond whatever visa or treaty already applies
• it is not a work permit
• it does not make you a Spanish tax resident — residence for tax purposes follows where you actually live and where your interests lie, not the holding of a number
• it is not an address registration at the town hall, and not a health card

Those are separate procedures with their own requirements and their own queues. Holding a NIE means only that the Spanish state has a way of addressing you.

Keeping it usable

Because the number stays with you for life, one rule follows: if you have ever had one, do not apply again. A second file with a second number creates a mismatch between the registry, the tax office and the bank that takes real effort to unpick.

The paper certificate is a different matter. Some bodies accept any legible copy; others ask for one issued recently, since the certificate can carry a validity period of its own even though the number behind it never expires. Before a signing, ask the notary’s office and the bank which version they expect.

Keep a scan somewhere you can reach from abroad. Over the years the number will be wanted by the town hall, the utility company, the insurer and eventually by a buyer’s lawyer, and it will always be the same number.