Inheritance

Living Will in Spain: How to Make a Document of Prior Instructions

By the AbogadoAI editorial team · Updated 18 July 2026 · 11 min read

🇪🇸 Read the original in Spanish

What would happen to our medical care if, due to a serious illness or an accident, we lost the ability to express our wishes? This is one of the most difficult yet necessary questions we must ask ourselves throughout our lives, and the legal answer in Spain is found in the living will, known formally as the document of prior instructions. Through this legal instrument, any person of legal age can decide in advance on the medical treatments they wish or do not wish to receive in the final stage of their life, ensuring that their dignity is respected and relieving their family members from making extremely painful decisions in moments of extreme vulnerability.

What is the Living Will or Document of Prior Instructions?

The living will, technically referred to at the state level as the _Documento de Instrucciones Previas_ (Document of Prior Instructions) — and in some autonomous communities as "Voluntades Anticipadas" (Advance Wills) or "Manifestación de Voluntades" (Expression of Wills) — is a written document through which a person with sufficient legal capacity expresses in advance their wishes regarding their health care and treatment.

The main objective is for these wishes to be fulfilled at the moment when the person is no longer capable of expressing them consciously by themselves. Furthermore, it allows for the designation of one or several representatives who will act as valid interlocutors with the medical team to ensure that what is stipulated in the document is carried out.

Unlike what happens with a standard inheritance will, a living will is not primarily regulated in the Código Civil (Civil Code), but rather in healthcare legislation, although it maintains a close relationship with the fundamental rights of the individual. The reference regulatory framework consists of:

Essential Content: What Can Be Included in the Document?

An effectively drafted living will must be clear and anticipate different clinical scenarios. Generally, the content is structured into four major blocks:

1. Declaration of Personal Values

This is the philosophical or vital basis of the document. Here, the principles that govern the declarant's life are explained (religious or secular beliefs, conception of human dignity, or the acceptable threshold of suffering). This helps doctors interpret specific instructions in case of doubt.

2. Instructions on Medical Treatments (Limitation of Therapeutic Effort)

The declarant can detail which interventions they reject or accept in situations of irreversible or terminal illness. The most common scenarios include:

3. Destination of the Body and Organ Donation

The document allows individuals to express their wish to donate organs for therapeutic, educational, or scientific research purposes. It is also possible to specify the preference regarding the final destination of the body (cremation or burial).

4. Designation of Representatives

It is highly recommended to appoint a representative (and a substitute) to act as an interlocutor with the medical team. This person does not decide for the patient, but rather interprets and demands compliance with the instructions written by them.

Key Differences: Living Will vs. Inheritance Will

It is very common to confuse these two concepts due to the similarity of their names, but they operate in completely different legal and temporal areas:

| Feature | Living Will (_Instrucciones Previas_) | Inheritance Will (_Testamento Común_) | | :--- | :--- | :--- | | Primary Regulation | Patient Autonomy Law (Law 41/2002) and regional healthcare laws. | Código Civil (Inheritance Law) and regional Derechos Forales. | | Effective Moment | During the declarant's lifetime, when they lack the capacity to decide. | After the death of the declarant. | | Main Object | Medical treatments, healthcare, euthanasia, and organ donation. | Distribution of assets, inheritance, and designation of guardians for minors. | | Registry | Registro de Instrucciones Previas (Healthcare). | Registro de Últimas Voluntades (Registry of Last Wills - Justice). | | Applicable Taxes | Exempt from court fees or taxes (ISD does not apply). | Subject to Inheritance and Gift Tax (_ISD - Impuesto sobre Sucesiones y Donaciones_). |

Practical Procedures: How to Grant a Living Will Step by Step

The procedure to formalise prior instructions is simple, but it requires rigour to ensure its legal validity and incorporation into your clinical history.

Step 1: Decide on the Method of Formalisation

There are three legal ways to formalise the document in Spain:

  1. *Before a Notary (Notario): This does not require the presence of witnesses. The Notary drafts the public deed, guaranteeing the legality of the content. It has an approximate cost of between €50 and €80*.
  2. Before Administration Staff (Official of the Regional Registry): This is a public service and is completely free of charge. You attend with a prior appointment at the health centre or health delegation designated by your Autonomous Community.
  3. Before Three Witnesses: This is the private route. It requires that at least 2 of the 3 witnesses do not have a family relationship up to the second degree (parents, children, siblings) nor any financial or employment connection with the declarant.

Step 2: Drafting the Document

You can use the official template provided by the Consejería de Sanidad (Health Department) of each Autonomous Community or draft a personalised text that better fits your individual needs. The document must be signed on all pages.

Step 3: Registration in the Registry of Prior Instructions

For the living will to be visible to any doctor in Spain, it must be registered in the Registry of the corresponding Autonomous Community. If it is done before a Notary or before the Administration, registration is usually carried out automatically. If it is done before witnesses, the interested party must submit the document physically or online.

Once registered, the document is uploaded to the _Registro Nacional de Instrucciones Previas_ (RNIP) (National Registry of Prior Instructions), which allows a doctor in Galicia to consult the living will of a citizen registered in Andalusia if they suffer an accident there.

Step 4: Communication to Family Members and the GP

It is essential to hand a copy of the prior instructions to the designated representative and, if possible, to your primary care physician (médico de cabecera) so that it is immediately recorded in the patient's digital health folder.

Practical Example: The Case of Martín's Family

To understand the real impact and utility of this document, let us analyse the following scenario:

> Example: Martín, a 68-year-old retiree living in Madrid, suffers from an early-stage neurodegenerative disease. Determined to avoid unnecessary suffering for his family and himself, he goes to a notary office in his neighbourhood to grant his document of prior instructions. > > In the document, Martín stipulates that, if his illness progresses to the point of irreversibly losing his cognitive and communication capacity, he rejects any life support measures (such as artificial enteral nutrition) and expressly requests the application of comprehensive palliative care, including palliative sedation if he presents refractory pain. He also designates his daughter Sofía as his sole representative. The cost of the notarial deed amounts to €65. > > Two years later, Martín suffers a sudden and irreversible worsening and is admitted to the hospital in a coma. Because the document was registered in the Registry of the Community of Madrid, the medical team accesses it immediately through his health card. Sofía does not have to make the distressing decision to "unplug" her father; she simply acts as the spokesperson for the wishes that Martín had already left in writing. The doctors apply the palliative care protocol, scrupulously respecting Martín's wishes, avoiding family disputes and guaranteeing a dignified death.

Mistakes to Avoid When Drafting Your Living Will

Frequently Asked Questions (FAQ)

Can I modify or revoke my living will once it is registered?

Yes, at any time. The living will is a fully revocable document. If you change your mind about your treatments or your representatives, you can draft a new document following the same formalisation steps. The new document will automatically cancel the previous one. If you simply wish to render it null and void, you can request the cancellation of its registration in the Registro de Instrucciones Previas.

What validity does the living will have if I move to another Autonomous Community?

It is fully valid. Although each Autonomous Community manages its own registry, they are all interconnected with the _Registro Nacional de Instrucciones Previas_ (RNIP) of the Ministry of Health. Any public or private hospital in Spain can consult your document by entering your health card number or your DNI/NIE.

If I am a foreigner residing in Spain, can I grant this document?

Yes. Any foreign person residing in Spain, whether they have legal residence or not, can grant the document of prior instructions. The only requirements are to be of legal age, have legal capacity, and possess an identification number (such as a NIE or passport) to be able to register the document in the health system of the autonomous community where they reside.

What happens if my family members do not agree with what I wrote?

Spanish law gives absolute priority to patient autonomy over the wishes of family members. Validly granted and registered prior instructions prevail over the opinions of children, spouses, or parents. The role of the representative or family is to ensure that the patient's wishes are fulfilled, not to replace them with their own moral or religious opinions.

In Summary

General legal information, not personalised legal advice. For your specific situation, ask your question for free at AbogadoAI — answers grounded in Spanish law (BOE), in English.

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This is general information, not legal advice. Verify on the BOE or consult a lawyer for your specific case.