How to get an NIE number in Spain (and why you need it to buy property)
You can buy a house in Spain without setting foot in it. The deed signed, the bank account opened, and the tax number that every other step depends on issued, all while you are still at home in the UK. The mechanism is a Power of Attorney: you authorise a Spanish lawyer to act in your name, and the paperwork proceeds while you get on with your week. That includes the NIE, the number every other step depends on, which you can get by proxy before you ever board a flight. Here is what it is, and the shortest way to get one.
What an NIE actually is, and why nothing moves without it
The NIE (Número de Identidad de Extranjero) is the tax and identity number Spain gives to foreigners. It is not residency, and it is not a card you need to live here. It is a number, which you can hold as a non-resident, and almost nothing in a purchase happens without it. The deposit contract, the bank account, the taxes and the title deed all queue behind it. Get it first.
Think of it as step zero of the legal stage, before the money questions and well before the removal van. The notary who witnesses your deed formalises the transaction but does not check it. The due diligence, the title, the licences and the debts attached to the property are your lawyer’s job, not theirs. That is why getting the administrative pieces right from the start matters.
Three ways to get your NIE, including one you can do from your sofa
There are three routes.
The first is in person at a police or immigration (extranjería) office in Spain. Practical if you are already here for viewings.
The second is at a Spanish consulate in your home country, before you travel. Useful if you want the number in hand before the search gets serious.
The third is the one that reframes the whole errand: remotely, through a Power of Attorney, with a Spanish lawyer or gestor (an administrative agent who handles Spanish officialdom on your behalf) applying for you. You never join a queue. This is the same proxy arrangement that lets the deed itself be signed in your absence.
Whichever route suits you, the mechanics are much the same.
How to apply, step by step
If you are doing it yourself, the shape of it is simple. The application centres on Form EX-15, the NIE request. You bring your passport and a reason for applying: for a buyer, that is usually the property purchase itself, supported by your lawyer or the deposit contract. You book an appointment (either at the consulate abroad or the extranjería office in Spain), pay the government fee using a Modelo 790 payment slip settled at a Spanish bank, and present the stamped slip with your form. The number is then issued for collection or forwarded to whoever is acting for you.
The fee is modest. The administration around it is where the time goes, which is the next question.
When is it worth paying someone to do it?
If you are organised, in the country, and have an afternoon spare, you can file the form yourself. For a remote or time-poor buyer, the calculation is different. Lauree and Chris, a couple who relocated to Spain, put it simply: it is worth the expense to have a company help you with the paperwork.
The deeper argument is risk, not convenience. Because the notary does not perform the due diligence, a DIY mistake does not surface at the counter. It surfaces later, at the worst moment, once your money is committed. A gestor or lawyer who does this daily is cheap insurance against that. Spanish bureaucracy rewards patience and photocopies, and someone who already knows which copies it wants is worth the fee.
Get your NIE before you find the property
You can legally apply once you have found a home. You should not wait that long.
Appointment backlogs are real, and timing is the whole point. Spain’s new housing decrees are pushing landlords to withdraw long-term rentals from the market[1], which closes off the usual rent-first escape route and makes a direct purchase the more practical path for many relocators. Foreign demand fell 13% in the first half of 2026[2]. A quieter market tends to favour the prepared, cash-ready buyer over the one still queueing for a number.
So treat the macro debate as a reason not to delay the one step that is free, reversible and entirely within your control. Hot market or cooling one, the NIE comes first.
Book the consulate appointment now, or instruct a gestor to start it by Power of Attorney, rather than waiting until you have found a property.
If you are weighing a purchase in Marbella and want the NIE and the finance side started properly, we are happy to talk it through.
This article is provided solely for informational purposes, reflecting Northern Estate’s interpretation of current legal frameworks and market practices, which are inherently subject to change. It does not purport to offer, nor should it be interpreted as offering, professional investment, financial, or real estate advice. Individuals considering any form of investment or financial planning in relation to luxury real estate should consult with a qualified professional advisor to tailor advice specifically to their circumstances. Northern Estates has endeavored to ensure the accuracy of the information herein; however, we cannot accept liability for any errors or omissions.
Sources
[1] Spanish Property Insight (2026) ‘Spain’s housing decrees trigger exodus from rental market’. Available at: https://www.spanishpropertyinsight.com/2026/10/19/spains-housing-decrees-trigger-exodus-from-rental-market/
[2] Spanish Property Insight (2026) ‘Foreign demand for Spanish property falls sharply in first half of 2026’. Available at: https://www.spanishpropertyinsight.com/2026/10/19/foreign-demand-for-spanish-property-falls-sharply-in-first-half-of-2026/