If you're buying property in Spain, the NIE is the first piece of paperwork on your critical path — and the one most likely to cause a last-minute panic. You cannot sign the deed at the notary, pay purchase taxes or open a bank account without it. Yet buyers routinely leave it until a completion date is looming, then discover the appointment system has other plans.
This guide covers what the NIE is (and isn't), every route to getting one, and the timing strategy that keeps it off your critical path entirely.
1. What the NIE Is — and What It Isn't
The NIE (Numero de Identidad de Extranjero) is a personal identification number Spain assigns to foreigners who have economic, professional or social dealings with the country.
Three things it is not, because the confusion causes real problems:
- It is not a visa or residency permit — having an NIE gives you zero right to live in Spain.
- It is not a card. For non-residents it's a white A4 certificate (the TIE plastic card is a different, residency document).
- It does not expire in practice. The number is yours for life.
2. When You Need It (Earlier Than You Think)
The formal answer: before completion at the notary. The practical answer: get it as soon as you're serious about buying — before you even find the house.
Appointment availability in Spain is unpredictable, consulate processing abroad can take weeks to a couple of months, and your mortgage file wants the NIE early. An NIE costs little and never expires — there is no scenario in which getting it early hurts you.
3. Route 1: In Spain, In Person
Best if you're visiting anyway. In the north, that's Oviedo, Gijon and Aviles for Asturias, and Santander for Cantabria. Book the famous cita previa online — slots disappear quickly, and the interface exists only in Spanish.
Bring: Form EX-15 completed, Form 790-012 fee paid at any Spanish bank (~€10, verify current amount), your passport plus a photocopy, and proof of why you need it — a reservation contract or a letter from your lawyer works.
If papers are in order, the certificate is often issued on the spot or within a few days. Extranjeria offices in Asturias and Cantabria are far less saturated than Malaga or Alicante — but summer and September remain tight months.
4. Route 2: At a Spanish Consulate Abroad
Best if your purchase is months away. Every Spanish consulate processes NIE applications for its jurisdiction. Because the application routes through Madrid, expect several weeks to two months door to door, varying by consulate and season. This route suits planners — not anyone with an arras contract already signed.
5. Route 3: Remotely, By Power of Attorney
Best for most foreign buyers, honestly — and the route nearly all our readers who've bought here ended up using. Spanish law allows your lawyer or a gestor to apply on your behalf with a power of attorney signed at a consulate or before a notary at home (with apostille and sworn translation).
Your lawyer books the appointment, files EX-15, pays the fee and collects the certificate — you do nothing. The same power of attorney can empower your lawyer to open your bank account, sign the arras and complete at the notary, meaning the entire purchase can happen without you setting foot in Spain until you collect the keys.
Have an English-speaking professional handle your NIE and paperwork end-to-end.
Get help with your paperwork →6. The Paperwork, Step by Step
Form EX-15 is the application: personal details exactly as they appear in your passport, your home address, and the reason — tick "economicos" and write "compra de vivienda en Espana" (purchase of a home in Spain).
Form 790-012 is the fee. In Spain: pay at any bank, keep the stamped copy — the office wants proof of payment, not your cash.
The justification document trips people up most. "I'd like an NIE in case I buy something someday" can be rejected; Spain wants a concrete reason — a reservation contract or a lawyer's letter works.
7. After You Get It: What Your NIE Unlocks
- Bank account — non-resident accounts become straightforward.
- Mortgage file — your application can progress to a formal offer.
- Completion — the notary lists your NIE on the deed; without it, no signature.
- Taxes and utilities — everything is filed and contracted against this number.
8. Common Problems and How to Avoid Them
- Leaving it until the arras is signed. Appointment scarcity plus consulate time can eat two months you no longer have.
- Name-order mismatches. Write names on EX-15 exactly as your passport shows, and check the certificate before leaving.
- Unpaid or mispaid fee. Code 012, stamped proof, stapled to the application.
- Weak justification. Vague intentions get rejected; documented purchase processes don't.
- Confusing NIE with residency. It doesn't let you stay past 90 days — that needs a separate visa.
Your NIE unlocks the mortgage process. Here's what non-residents can borrow.
Read the mortgage guide →9. Frequently Asked Questions
{{ f.a }}
Written from Asturias. Last updated August 2026. Administrative procedures and fees change — verify current requirements with your consulate or a qualified professional.