Buying property in Spain without a NIE number: what the law requires

Carlos Cabello
Co-founder. Tech and Operations Lead
Published on August 19, 2026
Contents

The offer is accepted, the arras contract is signed, the notary has a date four weeks out. Then someone mentions that completion cannot go ahead because the buyers have no NIE. It is the most repeated piece of advice in Spanish property purchases, and it is not quite accurate.

A notary can authorise a purchase deed for a buyer who has no NIE. The Reglamento Notarial says so in terms. What that buyer cannot do is register the purchase, and the damage sits there, not at the notary's table.

Where the requirement comes from

Article 18 of Real Decreto 1065/2007 obliges every individual and entity to hold a tax identification number for relations of a tax nature or with tax relevance. Article 20 of the same regulation settles what that number is for a foreign national: the número de identidad de extranjero assigned under Ley Orgánica 4/2000.

Which reframes the question. The NIE is not a property document and has nothing to do with immigration status for a buyer. It is the Spanish tax number, and buying a home is a transaction with tax relevance.

Article 23 of the Ley del Notariado applies that to the deed itself. In instruments by which ownership or other rights in rem over immovable property are acquired, declared, constituted, transferred, encumbered, modified or extinguished, and in any other instrument with tax relevance, the parties must prove their tax identification numbers to the authorising notary, and those numbers are recorded in the deed. The same applies to the numbers of anyone they represent.

The deed can be signed. The registration cannot happen.

This is the part that is almost never explained. Article 156.5 of the Reglamento Notarial expressly contemplates a party who refuses or is unable to produce a tax number. The notary records that circumstance in the deed, warns the parties verbally of the consequences under article 254 of the Ley Hipotecaria, and records that the warning was given.

Article 254.2 of the Ley Hipotecaria is where the consequence lands. No entry shall be made in the Land Registry for instruments relating to acts or contracts over immovable property, or any others with tax relevance, when they do not contain all the tax identification numbers of the parties and, where applicable, of the persons or entities they represent.

So the buyer without a NIE ends up owning under a contract but absent from the register. That is not a paperwork inconvenience:

  • No lender will advance a mortgage against a title that cannot be inscribed
  • The seller's creditors, and a later buyer who does register, take priority over an unregistered purchase
  • Resale is effectively blocked until the position is corrected
  • Article 254.5 makes the defect curable, but the cure is a fresh deed with everyone back before a notary, at the buyer's cost and on the seller's goodwill

Which is why most notaries decline to complete rather than authorise a deed they know cannot be registered. The legal position and the practical position point the same way, for different reasons.

The reservation does not need it

Reservation agreements and arras contracts are private agreements between the parties. Nothing in the tax rules or the mortgage law requires a tax number to sign one, because nothing is being registered.

That matters in a fast market. Buyers regularly let a property go while they wait for a number they do not yet need. The sequence that works is to reserve first, then run the NIE application in parallel with the searches and the mortgage.

One caution. The name on the arras must match the name that will appear on the deed, exactly as it is written in the passport, including second surnames. Changing the buying party later can trigger tax on the substitution.

Each buyer needs one of their own

A NIE belongs to a person, never to a household or a couple. A married couple buying jointly needs two, and each is applied for separately. Children who appear on the title, whether by purchase, gift or inheritance, need their own, applied for by the parents. Our guide on a NIE number for children covers the extra documents that involves.

If the buyer is a company, the entity needs a Spanish tax number of its own and the individual signing on its behalf needs a NIE. The difference between the two is set out in NIE, NIF, DNI and CIF in Spain.

What the buyer files afterwards, in their own name

The number does not stop being useful once the deed is signed. Every filing that follows a purchase is made under it.

Transfer tax on a resale is declared on modelo 600 in the relevant autonomous community. On a new build, the purchase carries VAT plus stamp duty instead. Then there is the municipal plusvalía, the annual IBI, and a non-resident income tax return every year for as long as the property is owned and not rented out.

One obligation surprises buyers because it falls on them rather than on the seller. Where the seller is not tax resident in Spain, article 25.2 of the non-resident income tax act obliges the buyer to withhold 3 per cent of the agreed price and pay it to the Agencia Tributaria on modelo 211, within one month of the transfer, as a payment on account of the seller's tax. If the buyer does not withhold, the property itself remains charged with the lower of the retention and the tax due. The buyer files that return under their own tax number, which is another reason the number has to exist before completion rather than after it.

Means of payment are checked as well

Article 24 of the Ley del Notariado requires the means of payment to be identified in deeds transferring property for consideration, and article 254.3 of the Ley Hipotecaria blocks registration where the notary has recorded that the parties refused to identify them. Transfers should come from an account in the buyer's own name, and the trail should be documented before the day of the deed rather than reconstructed after it.

A Spanish bank account is not a legal condition of buying, but banks will ask for the NIE before opening one, and paying the notary, the taxes and the utilities is considerably easier with one.

Getting the number in time

Three routes exist, and the right one depends on where the buyer is.

  • From abroad, at a Spanish consulate. Slower, but it runs while the buyer stays at home. See getting a NIE from abroad and, for British buyers, the route from the UK.
  • In Spain, in person. Form EX-15, the fee, and an appointment, which is the step that stalls. Our guide on what to do when there are no appointments explains why that queue exists and what sits behind it.
  • By power of attorney. A representative applies, collects the number and, if the power is drawn widely enough, signs the deed too. This is the route most non-resident buyers end up using, because it removes the appointment and the flight in one step.

Bring the reason for the application with you. A signed reservation or arras contract is exactly the kind of document the office expects to see, and applications are routinely returned for having everything except an explanation of why the applicant needs a number at all. The full picture is in how to get a NIE number in Spain, and the current fee in cost and processing time.

Frequently asked questions

Can you buy a house in Spain without a NIE number?
A deed can be authorised without one, and the Reglamento Notarial provides for exactly that situation. It cannot be registered, so in practice the purchase is not completed until the number exists. Treat it as a hard requirement with a narrow theoretical exception, not as optional.

Does getting a NIE make me tax resident in Spain?
No. The number is an identifier, not a status. Tax residence turns on the tests in the personal income tax act, principally spending more than 183 days of the calendar year in Spain, and on where the main base of activities or economic interests sits.

Do I need residency to buy?
No. Non-residents buy property in Spain on the same terms, with the same taxes and a few extra filings. Residency and the NIE are separate questions, covered in residency in Spain for EU citizens.

How long before the notary date should I start?
Start when the reservation is signed, not when the notary date is fixed. Consular routes in particular run on appointment availability that is outside anyone's control.

Can my lawyer obtain it and sign for me?
Yes, under a power of attorney granted before a notary in your own country and apostilled, or before a Spanish notary. One instrument can cover the NIE application, the deed and the tax filings.

Why Buenaley?

Buenaley is a Spanish law firm working with international buyers. We handle the number and the purchase as one file, because they run on the same timetable.

  • NIE obtained by power of attorney, without an appointment or a trip
  • Searches, charges and community debts checked before the arras, not after
  • Modelo 600, the 3 per cent retention and the registration handled after completion
  • Fixed price, agreed in advance

Buying, and unsure whether the number will be ready in time? Put the dates to us and we will tell you plainly which route fits, or start at the NIE page.

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