Before signing a reservation, before even opening a bank account, every foreign buyer runs into three letters that appear on every document: NIE. Knowing how to get your NIE number in Spain, and doing it early, is in our experience what separates a smooth purchase from one full of waiting. Ayling has guided British, European and non-EU buyers through this step since 1977, and in this guide we explain in practical terms what it is, how to apply and which mistakes to avoid.
The NIE (Número de Identidad de Extranjero) is a unique tax identification number that the Spanish authorities assign to any non-Spanish person with economic or professional dealings in the country. It is not a residence permit and it does not require you to live in Spain: it is simply the number by which the tax office, the notary, the Land Registry and the banks identify you.
You need it to sign the purchase deed before a notary, to pay the taxes linked to the purchase, to open a bank account with most banks, to put utilities in your name and to file the annual non-resident tax return. Without a NIE, quite simply, you cannot buy a property in Spain.
There are two main routes. The first is from your home country, through the Spanish consulate or embassy, which processes the application and notifies you of the number once granted. This is the most convenient option if you have not yet travelled to Spain, although processing times vary widely from one consulate to another.
The second is in Spain, at a foreigners' office or National Police station, by prior appointment. In our area the procedure is usually handled at the offices in the province of Cádiz, and appointments are booked through the government's online portal. Getting a slot can take patience in high season, so we recommend starting as soon as there is a serious intention to buy.
A representative with power of attorney, such as your lawyer in Spain, can also submit the application on your behalf. This is very common among buyers who cannot travel and fits neatly with a fully remote purchase.
The application is made using the official EX-15 form, duly completed, together with your original valid passport and a full photocopy, a document justifying the reason for the request (for a property purchase, a reservation or deposit contract, or a letter from the agency or lawyer, is normally enough) and proof of payment of the administrative fee, form 790 code 012, which costs around ten euros. If you apply through a consulate, you may also be asked for a recent photograph or the legalisation of certain documents.
Once a complete application is submitted, the NIE is usually issued within days to a few weeks, depending on the office and the time of year. The most common mistake is leaving it until after you have found the house: when the ideal property appears, sellers rarely want to wait a month for the buyer to obtain their number. Our advice is simple: apply for your NIE as soon as you decide you are going to buy, even if you do not yet know exactly what.
Bear in mind that the NIE is a number, not a card. The certificate you receive is a paper document and, although it does not expire as such, some institutions ask for a recent one. Always keep a digital copy.
Many of our British clients ask whether they need residency to buy. The answer is no: anyone can purchase a property in Spain without being resident, with just a NIE. How long you can stay in the country is a separate matter. Since Brexit, UK citizens, like other non-EU nationals, may stay up to ninety days in any one-hundred-and-eighty-day period without a visa. Longer stays require a residence visa, such as the non-lucrative visa, applied for at the consulate and requiring proof of financial means and health insurance.
Remember too that the so-called golden visa for property investment stopped being granted in April 2025, so buying a home no longer gives access to residency by itself. This has not dented interest in Sotogrande; it has simply made it more important to plan with a lawyer which route to residence suits each family.
We are not a law firm, but we have watched this process closely for decades. We guide you through the steps, introduce you to trusted local lawyers and gestorías who handle NIE and residency applications, and coordinate timings so that your purchase in Sotogrande is never held up by paperwork. If you are thinking of buying and want to start on the right foot, write to ayling@aylingsotogrande.com or use the contact form on our website.