Table of Contents (12)
  • Sub-delegation of power
  • What is a sub-authorisation?
  • Can all powers be delegated?
  • Characteristics of sub-delegation of power or delegation
  • Sub-delegation and substitution of power
  • Commercial sub-authorisation
  • Sub-delegation with attorney-in-fact
  • Deed of sub-power of attorney in Barcelona
  • The role of the Notary in the sub-power of attorney
  • Documentation for the deed of sub-power of attorney in Spain
  • How much does it cost to carry out a deed of sub-power of attorney?
  • JLA Notaries, notary for sub-authorisation of powers

Sub-delegation of power

The subdelegation of power is one of the actions that takes place in our Notary Office in Barcelona, being part of the specialty of our notarial services in powers of attorney in Barcelona. Therefore, we want to introduce you to what subdelegation means, how to process it step by step, and other related matters.

What is a sub-authorisation?

Sub-delegation is known as the granting of power by an authorised person to a third party. This resource can occur both in commercial and civil contexts. The most characteristic aspect in the case of sub-delegation is that both the authorised person and the sub-authorised person will have functions, and either of them may exercise the functions stated in the power of attorney and the sub-power of attorney.

For sub-delegation to occur, a principal (that is, the person who initially grants the power or authority) must first grant a power of attorney to an authorised person. Sub-delegation occurs when said authorised person delegates this power to a third party, to act as sub-authorised person.

The transfer of power from the authorised person to the sub-authorised person can be partial or total, and they may exercise the representation functions that the authorised person grants them. In fact, the granting of power does not annul the previous one and they can coexist simultaneously, both representing and acting on behalf of their principal.

Sub-delegation of power usually occurs when the authorised person cannot perform their function, whether due to illness, temporary incapacity, or high workload, and thus manages to avoid the duty to revoke the granted power. However, it can be used without these circumstances occurring.

It is a resource that modifies the original granting of power and is regulated between articles 1709 to 1721 of the Civil Code; in article 622-26 of the Catalan Civil Code; and in articles 261 and 296 of the Commercial Code.

Can all powers be delegated?

The answer is no. The delegation of power to act on behalf of the principal and their representation by the attorney-in-fact is based on a strict relationship of trust, therefore, sub-delegation could cause a breach in the entrusted mandate.

As a general rule, in the field of civil powers of attorney, it is possible for the attorney-in-fact to sub-delegate to other persons to fulfil the mandate, unless sub-delegation has been expressly prohibited in the power of attorney, except in Catalan law, where it must be expressly authorised in the power of attorney, as otherwise such sub-delegation cannot be carried out.

For its part, in the field of commercial powers of attorney, the rule is similar to Catalan civil law, so it is considered that sub-delegation of a commercial power of attorney is not possible unless it has been expressly permitted in the power of attorney.

Characteristics of sub-delegation of power or delegation

For the empowerment to occur, it will be necessary that it is not expressly prohibited in the case of a civil power of attorney, or that it is expressly permitted in the case of a commercial power of attorney or one granted in accordance with Catalan law.

All sub-powers of attorney that occur when the principal expressly prohibits it or when it is a commercial power of attorney in which the sub-power is not expressly authorised will be declared null and void, without prejudice to the responsibility of the sub-attorney.

Furthermore, the sub-attorney must be in full intellectual capacity, understand the significance of the acts they are going to perform, and must be over 18 years old.

Sub-delegation and substitution of power

Substitution and sub-authorisation are two recurring figures in our notarial services for powers of attorney in Barcelona. The difference between the two lies in that, in sub-authorisation, the attorney and sub-attorney share the power, whereas, in the substitution of power, the attorney would lose their capacity for representation, which could only be exercised by the substitute.

Commercial sub-authorisation

Sub-authorisation is a resource widely used in commercial companies to grant the capacity to represent the company and carry out actions on its behalf. One of the differences between this and civil sub-authorisation lies in the fact that, in companies, sub-authorisation can only occur when there is express authorisation for the delegation of power to take place. Therefore, commercial sub-authorisation can also occur when it is granted by an attorney who has the powers to sub-authorise.

By using the sub-power by the attorney, benefits in time and resources can be obtained. For example, imagine someone grants power to their lawyer. They could sub-authorise other lawyers in their firm to represent the principal at times when the workload is high or for specific procedures in a case.

Sub-delegation with attorney-in-fact

In this case, when sub-authorisation occurs in procurators, what is achieved is that the latter represent the principal in judicial proceedings in criminal, civil, contentious-administrative, commercial or labour matters. As in the previous case, several procurators can be appointed as sub-authorised representatives in order to appeal to different judicial bodies.

Deed of sub-power of attorney in Barcelona

To grant it, a notarial document known as a public deed of sub-power of attorney must be processed. The easiest way is for it to be included in the initial power of attorney deed so that it can be carried out, which must be presented before a Notary to process the sub-power of attorney. In the event that the possibility of sub-power of attorney is not stated or has not been prohibited, the sub-power of attorney deed must also be ratified by the principal, to ensure that there is no liability on the part of the attorney-in-fact granting the sub-power of attorney. In any case, when a sub-power of attorney is processed, it is advisable for the attorney-in-fact granting the power to notify their principal in a reliable manner.

The role of the Notary in the sub-power of attorney

If you are an attorney-in-fact and need to process a sub-power of attorney deed, please make an appointment at our Notary Office in Barcelona. Only your presence and signature will be necessary, without the need for your principal or sub-attorney to attend. It is advisable that the principal is aware that the sub-power of attorney has been granted.

For a sub-attorney to exercise their functions, they will need an authentic copy of the original power of attorney granted notarised and the sub-power of attorney deed. If both are going to exercise the power simultaneously, each must have an authentic copy of the original power of attorney.

Likewise, it is also necessary to inform the Notary who originally processed the power of attorney, as established in the Notarial Regulations.

During the procedure at JLA Notarios, our notary office in Barcelona, you will be advised by legal professionals to guarantee the legality and authenticity of the transactions. You will be informed of the legal and financial risks and about any conflicts of interest that may arise, both in private matters and in commercial sub-power of attorney.

Documentation for the deed of sub-power of attorney in Spain

The documentation must be the following in the case of individuals:

  • Valid identification document of the attorney who is going to delegate authority
  • Authentic copy of the power of attorney that allows verification of what has been determined by the principal

In the case of companies or legal entities:

  • Valid identification documentation of the attorney who will delegate authority
  • Documents proving the existence of the company
  • Authentic copy of the power of attorney that will be subject to delegation.

In the case of foreign companies, they must provide the NIF, the company documentation translated and apostilled, their registration certificate, and the NIE or passport of the representative.

How much does it cost to carry out a deed of sub-power of attorney?

The price of notarial acts is regulated by the Government and complies with the regulatory framework of the NOTARIAL FEE SCHEDULE (RD 1426/1989, of 17 November, regulating the Notaries' Fee Schedule).

In any case, the exact price of a notarial document cannot be calculated until its specific content is known, that is, until it is signed, as there are many circumstances that can cause it to vary.

In the case of a sub-power of attorney deed, the cost varies depending on whether it concerns a natural person or a legal entity.

The number of copies requested of a document, the pages it contains, as well as possible changes or additions, also slightly affect the final price.

If you wish to receive a detailed quote, we invite you to contact us directly through the method that is most convenient for you. You can do so via the contact form on the main page of this website, through the contact section found in the footer of the website, by using the WhatsApp shortcut at the bottom right of this page, by sending an email to bcn@jlanotarios.com, or by calling us on 93 159 17 62.

As a guideline, we can inform you that, according to the current regulatory framework, the usual price in the case of sub-power of attorney for commercial power, since more procedures and company documentation are required, is between €120 and €250. Meanwhile, the formalisation of a sub-power of attorney deed for civil power granted by a natural person ranges between €60 and €95.

Other questions related to the sub-delegation of power

It will last as long as the power of attorney granted to the attorney-in-fact. That is to say, if an attorney-in-fact has been granted power for a period of one year, the sub-attorney-in-fact will have the same time established for the execution of the powers.


The revocation of a sub-power of attorney may be carried out either by the attorney-in-fact (for example, if they have recovered from an illness or incapacity and can exercise the powers alone) or by the principal, by revoking the initial power of attorney deed granted to the attorney-in-fact. It must be reliably communicated to the sub-attorney-in-fact.


Likewise, any person who wishes to renounce a sub-power of attorney may also do so, either by destroying the authentic copy granting them the power or through a public deed of renunciation. The sub-attorney's deed of renunciation is the best way to renounce a power of attorney and ensure that the renouncer will have no liability of any kind after the renunciation of the power.


The attorney-in-fact has no responsibility for what is done by the sub-attorney-in-fact as long as the sub-authorisation was permitted. However, there are cases where they must be held accountable, such as when the attorney-in-fact has granted a sub-authorisation expressly prohibited by the principal, or when the sub-authorisation was allowed but the appointed sub-attorney-in-fact was notoriously incapable or insolvent.

Indeed, the sub-attorney-in-fact, especially in commercial actions, can be held personally liable for the company's debts or those actions carried out negligently, in the aforementioned cases, since they act on behalf of the principal and not on behalf of the attorney-in-fact.


In the event that power of representation has been granted to several attorneys-in-fact and provided that the possibility is stated, several sub-attorneys-in-fact may be appointed for the processing of procedures.


JLA Notaries, notary for sub-authorisation of powers

At JLA Notarios we specialise in the preparation of the power of attorney sub-delegation deed. In our Notary Office in Barcelona you will find a team of highly qualified and experienced Notaries to be able to grant notarial power of attorney in Barcelona. We are experts in the applicable regulations and can offer you personalised advice tailored to your specific needs, always responding to your questions and concerns.

At JLA Notarios we work empathetically and dynamically, applying new technologies in all procedures for your comfort and convenience. Our goal is to optimise the transaction times of your procedure and keep you informed of any developments that arise during the process. In addition, you can now also sign a power of attorney sub-delegation from anywhere in Spain, in the fastest and most convenient way via videoconference with our online notary service.

Choose us as your Notary to receive excellent service quality. Get in touch with us for an initial consultation at our offices or grant notarial powers online through digital signature. We will assist you throughout the entire process, resolving your doubts and efficiently managing your procedure. Book your first consultation now at JLA Notarios.

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