A NIE for Your Children and Through a Representative

When does a child actually need a NIE

The trigger is not age and it is not residence. It is whether the child is about to appear in a Spanish public record. In practice that means one of a small number of moments.

The most common by far is inheritance. When a foreign owner of Spanish property dies, the heirs are named in the acceptance of inheritance and then in the new deed, and every heir named there needs a Spanish identification number, minors included. A three year old who inherits a quarter share of an apartment in Torrevieja needs a NIE before the notary can complete the acceptance.

The second is acquisition. Parents occasionally buy in a child's name, or place a child on the deed alongside them, usually for succession planning reasons. Same result: named on the deed, needs a number.

The third is a residence process. If the family is moving and the children are being registered as residents, the children's NIEs are assigned as part of that procedure rather than requested separately. Our piece on registering your child as a resident covers that path, which is a different animal.

What does not trigger it is ordinary family life. A child living in Spain on a parent's residence, attending school, using the health system on a parent's cover, does not need a NIE simply for existing. It is the appearance in a register or a tax event that creates the need.

What the offices ask for when the applicant is a minor

The requirements are remarkably consistent across consular posts, which is helpful because there is no single national checklist published for this case. Read half a dozen consulate pages and the same set appears:

• The EX-15, completed and signed. For a minor it is signed by the parent or guardian acting as legal representative, not by the child.
• The child's valid passport, original and copy.
• Proof of the relationship or of guardianship: a copy of the libro de familia, or the birth certificate, or the guardianship or custody order where one exists.
• The valid passport or national identity document of the parent or guardian who is acting, original and copy.
• The paid Modelo 790 código 012, at the same 9,84 € as for an adult. There is no reduced rate for children.
• Evidence of the reason, which for an inheritance means the death certificate and something showing the estate includes Spanish assets.

The libro de familia is a Spanish institution and many families simply do not have one. That is fine, the birth certificate substitutes for it, but a foreign birth certificate brings the legalisation problem discussed below, and that is where the delay lives.

The EX-15 recognises two different representatives

This is the distinction that causes the most confusion, and getting it right removes a lot of pain.

The legal representative

Section 1 of the form is about the person the NIE is for. Where that person is a minor or lacks capacity, the form provides for a legal representative to be identified there, with a field for the título, the capacity in which they act: padre, madre or tutor. This is not a delegation, it is a statement of who is legally entitled to act for this person. A parent does not need a power of attorney to represent their own child, because parental authority is the title.

The filing representative

Section 2 is a different thing entirely. It identifies a person who is presenting the application on behalf of the applicant, and this is where a lawyer, a gestor or a friend goes. This representation does need an instrument, and the standard is specific: the Ministerio del Interior requires a power that expressly empowers the representative to present that application. A general authority to act in Spanish matters is not reliably sufficient, and some posts state flatly that representation is by poder notarial only.

The two can stack. A parent who cannot travel might act as legal representative for the child in section 1 while a Spanish gestor files in section 2 under a poder. That is a normal file, and it needs both elements documented properly.

The power of attorney that actually works

If you are having a poder drawn up for a NIE application, the wording matters more than the format. What the office wants to see is an express reference to the presentation of the application for a Número de Identidad de Extranjero on your behalf. A poder that lists twelve general powers and does not mention extranjería procedures is the kind that gets accepted in one office and refused in the next.

A poder granted before a Spanish notary is the cleanest option, because it needs no further formality. A poder granted before a notary in your own country is perfectly usable but requires an apostille if your country is party to the Hague Convention, or diplomatic legalisation if it is not. Budget real time for this. In most countries the apostille is a separate authority with its own queue.

If you are already having a purchase power of attorney prepared so that a Spanish lawyer can sign the escritura for you, ask for the NIE application power at the same time. Two powers in one notarial appointment costs very little more than one, and the alternative is discovering the gap after the apostille has already been issued on the wrong document.

Apostille and sworn translation, the rule that catches everyone

Hoja informativa 61 of the Ministerio de Inclusión sets the general standard for extranjería files, and it applies here. Foreign public documents need an apostille where the issuing state is party to the Hague Convention, and diplomatic legalisation where it is not. They then need translation into Spanish, and the translation must be done by one of three categories of translator: a traductor intérprete jurado appointed by the MAEUEC, a Spanish consulate abroad, or the diplomatic mission in Spain of the country that issued the document.

No other translator is accepted. Not a professional agency, not a bilingual family member, not a certified translator in your own country holding a national accreditation. This is the single most expensive misunderstanding in this whole area, because people pay for a translation, wait for it, and then find it is worthless for this purpose. If you take one thing from this article, take that.

The documents most often affected in these two scenarios are the child's birth certificate, a guardianship or custody order, a foreign death certificate, and a poder granted abroad.

Does the child have to attend in person

Here we have to be honest about the limits of what is published. Some consular posts state expressly that the presence of the minor and of the parents is required. Paris is one of them. Others say nothing at all about attendance, and in Spain practice varies between offices.

There is no national rule we can point to that settles this, so do not trust any source that states one confidently in either direction, including a source that tells you children never need to attend. The only reliable answer is the one on the page of the specific office you are applying to, and if the page is silent, ask before you book flights. A wasted trip with a small child is a bad afternoon.

A NIF is not a NIE, and this matters for children

Worth flagging because it surfaces constantly in estate matters. Spain issues a NIF, a fiscal identification number, in situations where a NIE is not available, including to Spanish minors under fourteen and to foreigners who have to interact with the tax system without holding a NIE. Some advisers use the two words interchangeably, and it is not always harmless.

For a foreign child inheriting Spanish property, what the notary and the Registro will want is a NIE. If someone offers you a NIF as a quicker substitute, ask specifically which number will appear on the deed, and confirm it with whoever is drafting the escritura before you rely on it.

Where these files actually fail

• The translation problem above. By a wide margin the most common single failure.
• A poder that does not name the procedure. Expressly empower, or expect a refusal.
• Missing the apostille on the birth certificate. People remember it for the death certificate and forget it for the child.
• Applying for one child and not the others. Where several siblings inherit, each needs a number, and it is worth doing them together in one appointment.
• Names that do not match. A child's name on a birth certificate, on a passport and on a Spanish deed must line up. Double surnames, patronymics and transliterations are all places this goes wrong, and the notary is the one who will notice.
• Leaving it until the inheritance is being signed. The acceptance of inheritance cannot complete without the numbers, and Spanish inheritance tax has its own deadline running from the date of death, so a delay here has a cost attached. Our inheritance and gift tax page explains that clock.

Doing it in the right order

For an inheritance, the order that works is: obtain and legalise the foreign documents first, then apply for every heir's NIE together, then go to the notary for the acceptance. Families routinely try this in reverse, discover at the notary that two of the heirs have no number, and lose weeks. If a Spanish will exists the process is shorter, which is one of several arguments for making a will in Spain while you can.

For a purchase where you cannot attend, the order is: have the notarial powers drawn and apostilled, then let your representative file the NIE application, then let them sign. Each step depends on the one before, so the apostille queue in your own country is usually the real critical path, not anything Spanish.