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In 2026 a NIE number can be obtained in two ways: through a Spanish consulate outside Spain, for example while still in Poland, or in Spain itself, most often through the relevant police unit or foreigners’ office. In both cases the basis is the EX-15 form, a valid identity document and a specific justification of why the number is needed. The NIE number is a foreigner’s identification number, not a residence permit. If you plan to live in Spain for longer than 3 months, a separate EU citizen residence registration applies as well.
What is a NIE number and how does it differ from residence registration?
NIE, or Número de Identidad de Extranjero, is a Spanish identification number issued to foreigners. You need it when you have a formal matter in Spain that requires you to be entered in the administrative or tax system. You use it with public offices and institutions.
The most common misunderstanding is treating the NIE number as a right of residence. A NIE number:
- is not a residence card or residency,
- does not mean that you are registered as a person living in Spain,
- does not give a right of residence beyond 3 months on the terms available to a person who has completed residence registration,
- does not give you any special status in Spain.
For a Polish citizen, as an EU citizen, this means in practice:
- a number for a specific transaction (buying an apartment, a notarial deed, tax matters) – the procedure for obtaining a NIE number is enough,
- living in Spain for longer than 3 months – besides the NIE number, EU citizen residence registration applies.
So you can hold a NIE number simply in order to buy a flat or house, without living in Spain permanently at all.
When do you need a NIE number?
A NIE number is needed when you have a specific legal, economic or administrative interest in Spain. For many Poles it is the first formal step connected with Spain, especially when buying a property in Spain. A NIE number is required, among other things, when:
- buying a property and selling it,
- signing a notarial deed,
- opening a bank account,
- signing certain contracts,
- tax returns and tax formalities,
- inheritance matters or gifts,
- dealings with public offices.
A NIE number is not obtained “just in case”. The application must state a specific reason why you need it, and a justification that is too general is a common cause of problems.
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How do you obtain a NIE number through a Spanish consulate?
The consular route lets you prepare for the transaction before you even arrive in Spain. It works well if you are planning to buy a property, want to prepare documents in advance, know that a notarial or tax matter awaits you in Spain, or do not want to lose time at offices after you arrive.
The procedure step by step
- Find out which Spanish consular office is responsible for your place of residence.
- Complete the EX-15 form – this is the form on which you apply for a NIE number.
- Prepare a valid identity document, most often a passport.
- Describe a specific purpose, for example a planned property purchase, a notarial transaction, tax matters or inheritance proceedings.
- Submit the application in line with the rules of the given office.
A justification “for the future” is too general. The office expects a specific and genuine purpose.
Can you act through a representative?
In some situations, yes, but the representative must have the appropriate authority and the power of attorney must be prepared correctly. The requirements need to be checked carefully with the specific office, because many mistakes occur at this stage.
What does a NIE number from a consulate give you?
An identification number that you use for formalities in Spain. It does not give a right of residence.
How do you obtain a NIE number in Spain and how much does it cost?
In Spain, the application is submitted at the relevant police unit or foreigners’ office. Not every unit handles the same matters – the right place depends on the province and on how the office organises its work.
The procedure step by step
- Find out which office or unit issues NIE numbers in the place where you are dealing with the matter.
- Complete the EX-15 form.
- Pay the official fee on form 790-012, choosing the item that applies to the issue of a NIE number.
- Attend the scheduled appointment or follow the procedure that applies at that location.
- Submit the application, show your identity document and wait for the number to be issued.
How much does a NIE number cost?
The official fee for issuing a NIE number in 2026 is around 10 euros. The problem is usually not the cost but the formalities, the deadlines and preparing the documents correctly.
How long is the wait?
It depends on the location, the availability of appointments and how busy the office is. In some cities the matter moves smoothly, in others it can drag on longer than expected.
The EX-15 form and the 790-012 fee: how to avoid mistakes?
EX-15 is the basic form for obtaining a NIE number. Mistakes on it lead to documents being returned or a second visit being required. The most common problems are:
- typos in personal details,
- incorrect document number,
- missing signature,
- the purpose of the application wrongly stated,
- illegible handwriting.
The justification matters most: short but specific, stating which transaction or matter requires the number to be issued.
Fee form 790-012 is used for procedures concerning foreigners. It contains various items, and the wrong one is often chosen. You must tick the fee for the issue of a NIE number specifically – “any fee for foreigners” will not be accepted, and a wrongly paid form means a lost deadline.
Does a NIE number expire, and when is it not enough on its own?
A NIE number is issued once and, as a rule, does not change. You do not apply for it again when buying another property or for another matter. However, your obligations towards the authorities may change depending on whether you are buying a property, living in Spain, working there or have tax obligations.
If, as a Polish citizen, you want to stay in Spain for longer than 3 months, a NIE number alone is not enough. You need to complete EU citizen residence registration: submit the relevant application and show that you meet the conditions of residence, for example that you work, run a business, have sufficient means to live on or have suitable insurance.
The most common mistakes when applying for a NIE number
- Confusing the NIE number with residence – these are two different procedures.
- A justification for the application that is too general – the office wants to know why the number is needed.
- Form 790-012 paid incorrectly – a small detail, but a very common one.
- Assuming that every police unit handles NIE – you always need to check the right place.
- Handling the matter “on someone’s word” through an acquaintance or an intermediary without the correct documents – this usually ends in wasted time.
Frequently asked questions
Do I need an NIE number to buy a property in Spain?
In practice, yes. In a standard transaction a NIE number is needed, because without it the notarial, tax and administrative formalities are hard to complete.
Can I have a NIE number without living in Spain?
Yes, this is a common situation. Many people hold a NIE number because they bought an apartment or are dealing with tax matters, and do not live in Spain permanently.
Does a NIE number mean residency?
No. A NIE number alone does not mean registered residence in Spain, and for a stay longer than 3 months EU citizen residence registration is required.
Can you obtain a NIE number while still in Poland?
Yes, through a Spanish consulate. You need the EX-15 form, an identity document and a specific justification for the application.
Does a NIE number expire?
As a rule, no, because it is issued once. That does not mean, however, that all other official matters always stay up to date.
Aria Spain helps clients buying new properties on the Costa Blanca, Costa Calida and Costa del Sol to obtain a NIE number, as well as to open a bank account, arrange a mortgage and handle the formalities at the notary – in English and with no commission for the buyer. You can go through the details during a free consultation.
