Contract Modification Due to Crisis. “Rebus Sic Stantibus”

Signing a real estate contract before a lawyer to apply the rebus sic stantibus clause due to crisis.

Contract Modifications in Crisis Situations: “Rebus sic Stantibus”

The “Rebus Sic Stantibus” clause ( also known as the “rebus” clause) is a Latin aphorism that could be translated as “as long as things remain as they are.”

It is a legal instrument originating in ancient Rome which, although it does not appear today in the articles of any legal code, does have sufficient jurisprudential development.

It acts as a balancing mechanism between the obligation to fulfill contracts and necessary equity, prohibiting excessive onerousness under certain circumstances.

It should be noted, on the one hand, that the Civil Code makes it clear that obligations arising from contracts have the force of law between the parties and, therefore, must be fulfilled. Article 1258 elaborates on this point, and, more specifically, Article 1256 categorically states that the validity and performance of contracts cannot be left to the discretion of one of the contracting parties.

Notwithstanding the foregoing, when contracting parties formalize their agreements, they do so based on the reality of the moment in which they consent to be bound and on the expectations that may reasonably be anticipated for the future.

If an unforeseeable event occurs for the contracting parties and profoundly alters their situation… what can be done? Should obligations continue to be assumed even when they are almost impossible or excessively onerous?… or, conversely, is there a possibility of altering them?

To address such situations, the“rebus sic stantibus”clause was created.

Defining Requirements of the “Rebus sin Stantibus” Clause

In 1957 and 1959, the Supreme Court had already established the requirements for its application in separate rulings, although it denied the request in both cases. It was in its rulings of April 19, 1985, May 9, 1983, and June 27, 1984, that the Court summarized the requirements for its application and set them forth in an orderly manner, as follows:

  • There has been an extraordinary change between the circumstances existing at the time of performance of the contract and those existing at the time of its execution.
  • As a result of such a change, there is an exorbitant and utterly disproportionate discrepancy between the agreed-upon benefits.
  • This occurred due to the onset of truly unforeseeable circumstances.
  • If there is no other means to remedy the aforementioned imbalance in assets.

Furthermore, the Court clarifies that, through the use of this instrument, the creditor should not seek to obtain a performance greater than that agreed upon, nor should the debtor deliver less than what was agreed.

“Rebus sin Stantibus.” Objective

The purpose of this legal institution is generally to modulate the obligations to which the parties are subject, preventing them from becoming excessively burdensome or onerous for one of the parties.

As well as, in extreme cases, to nullify the contract on the grounds that the legal transaction that gave it cause has become impossible or at least so difficult to implement that it ceases to be in the interest of the contracting parties.

Case-by-case analysis

Being a figure of jurisprudential development, its application is not sufficiently defined, which, combined with the fact that it is closely linked to economic activity (and this in today’s society is very diverse depending on the sector examined), means that its application does not correspond equally in all cases.

Economic sectors where fluctuation in workload, the value or quantity of assets, and other similar factors are very high do not facilitate its application on most occasions. The rationale for this is simple: rebus sic stantibus will be applied when the situation causing the imbalance between contracting parties is external and truly unforeseeable for them.

Volatility in certain sectors makes it foreseeable that alterations will occur in the daily reality of the contracting parties in the near-to-medium future. It may even be considered that these modifications do not arise from situations external to the contracting parties, as they are typical of the sector in which they are operating.

Another important aspect is the nature of the contracting parties; it will not be applied equally in B2B (business to business) contracts, in contracts between individuals, or in consumer or user contracts.

In contracts between individuals, it may be very complex to determine who is the weaker party; in B2B contracts, it may be somewhat easier by considering the size of the companies, their turnover, etc.

However, there is no doubt that in contracts between companies and consumers or users, the stronger party is normally considered to be the company, which in a large number of cases structures its contractual relationships with its clients through adhesion contracts linked to general contracting conditions, with no prior negotiation and consequently no power for the client to alter the content of the “prefabricated” contract.

From Luxembourg, the Court of Justice of the European Union has repeatedly ruled in the same direction: protection through this instrument of consumers and users as they are the most vulnerable in crisis situations.

Developments and Case Law in the Supreme Court’s Jurisprudence

Within the rulings on the “rebus sic stantibus” clause, and from an evolutionary perspective, we could refer to the following:

1.- The Supreme Court had for many years systematically prevented the application of this instrument to level performances; the High Court said of this clause in STS of May 17, 1957, that “it is dangerous and must be admitted with caution,” as it may attack the principle pacta sunt servanda and the always desired legal certainty.

2.- The Supreme Court showed some openness in 2013, where in two judgments very close in time, dated January 17 for the first and 18 for the second, numbered 820 and 822 respectively, the High Court declared that “deep and prolonged effects of economic recession can be openly considered as an economic phenomenon capable of generating a serious disruption or mutation of circumstances”.

3.- In this regard, in Judgment No. 333 dated June 30, 2014, an appeal was upheld by the Supreme Court based on the application of this clause.

4.- Notwithstanding the foregoing, eight days before the State of Alarm was declared, all commerce in Spain was halted, and with confinement imminent, the Supreme Court ruled in Judgment No. 156/2020 of March 6, stating in its second legal ground what is transcribed below: “A change of these characteristics that, under the premises established by jurisprudence, could generate a case for application of the rebus sic stantibus rule is more likely to occur in a long-term contract, ordinarily of successive performance. But not in a case, such as the present one, of a short-term contract, in which something extraordinary that affects the basis of the contract and is not covered within the inherent risk of that contract can hardly occur.”

Amending Contracts in Times of Crisis. Expectations Regarding the “Rebus” Clause During the COVID-19 Crisis

Although, evidently, the Supreme Court has not yet ruled on its application or otherwise in the context of the current health crisis, in the opinion of the author of this article, it may—in certain cases—be applicable.

Indeed, it must be noted that the exceptional nature of the situation is recognized in the Royal Decrees regulating the State of Alarm itself, and intrinsically in its declaration.

Unlike the 2008 economic crisis, in which the various economic-productive sectors suffered a slowdown, in this health crisis there has been an almost total and absolute paralysis of all sectors.

In contrast to economic cycles, where more or less reliable analyses and predictions can be made and measures can be taken to adapt contractual relationships and obligations to be adopted, in this case, no one could foresee in any way the arrival of this crisis.

Finally, and with particular regard to consumers, we believe that justice—the supreme value of the legal system, as set forth in Article 1—as well as the constitutionally enshrined rights that form the foundation of social peace will be integrated across the board into any future rulings.

With regard to contracts between companies, notwithstanding the foregoing, and in the opinion of the Director of the Commercial Contracting Division at IN DIEM, attorney Ángel José Del Pino Ibáñez, the situation will require further analysis and careful consideration in the decision-making process, as there is no doubt that both parties will be affected by the COVID-19 crisis.

This will mean that the commercial relationship established between companies, in addition to requiring a specific analysis of its clauses and the context of its execution, will be subject to the severe consequences and losses derived from the current crisis (both at the productive and financial levels, among other aspects) for all intervening parties.

In this regard, it will not be surprising, as attorney Ángel José Del Pino Ibáñez warns, that both parties may request the adaptation of the contractual relationship in opposite directions.

Furthermore, he continues to point out that under no circumstances should the crisis serve as justification or excuse to improve the conditions of one of the parties (normally, the stronger one) to obtain a better position, without taking into consideration the effects on the legal relationship globally and inclusively for all parties to the contractual relationship.

Probably, and to conclude, he infers that in situations of conflict over commercial contractual relationships between companies, “open books” negotiation mechanisms will have to be managed or, alternatively, alternative dispute resolution systems that level—if possible—the restructuring of contractual obligations, based on the dual impact, and avoiding —to the extent possible— the submission of differences to the courts.


Preguntas frecuentes sobre la cláusula rebus sic stantibus

¿Qué es la cláusula rebus sic stantibus?

Es una doctrina jurisprudencial que permite revisar o adaptar un contrato cuando sobrevienen circunstancias extraordinarias, imprevisibles y gravemente desequilibrantes para una de las partes. Su finalidad es evitar que el cumplimiento contractual resulte excesivamente oneroso o injusto.

¿Está regulada expresamente en el Código Civil?

No aparece recogida de forma expresa como artículo específico en el Código Civil. Su aplicación se ha construido principalmente a través de la jurisprudencia, como excepción al principio general de que los contratos deben cumplirse en sus propios términos.

¿Cuándo puede aplicarse la cláusula rebus?

Puede plantearse cuando se produce una alteración extraordinaria de las circunstancias, imprevisible al contratar, que genera una desproporción grave entre las prestaciones y no puede corregirse por otros medios menos intensos.

¿Sirve para dejar de cumplir cualquier contrato?

No. La cláusula rebus sic stantibus no permite incumplir libremente un contrato ni mejorar la posición de una parte. Su aplicación es excepcional y exige justificar que el desequilibrio contractual es real, grave, sobrevenido e imprevisible.

¿Qué diferencia hay entre modificar y resolver un contrato?

La modificación busca adaptar las obligaciones para recuperar el equilibrio contractual. La resolución supone extinguir el contrato. Con carácter general, los tribunales suelen valorar primero soluciones de adaptación antes de acudir a la extinción del vínculo contractual.

¿Puede aplicarse en contratos mercantiles entre empresas?

Sí, pero requiere un análisis especialmente cuidadoso. En contratos entre empresas debe valorarse el reparto de riesgos, el sector económico, la duración del contrato, el clausulado pactado y la afectación real sufrida por cada parte.

¿La crisis económica o sanitaria justifica siempre su aplicación?

No siempre. Una crisis puede ser relevante, pero no basta por sí sola. Debe demostrarse cómo afectó de forma concreta al contrato, por qué la situación era imprevisible y en qué medida alteró gravemente el equilibrio entre las prestaciones.

¿Qué pruebas son importantes para invocar la rebus sic stantibus?

Resultan relevantes el contrato, comunicaciones entre las partes, datos económicos, informes contables, reducción de ingresos, aumento de costes, imposibilidad de prestación, afectación sectorial y cualquier documento que acredite el desequilibrio sobrevenido.

¿Es recomendable negociar antes de acudir a los tribunales?

Sí. En muchos casos conviene intentar una negociación documentada, mecanismos de revisión contractual o sistemas alternativos de resolución de conflictos. Esto puede facilitar una solución equilibrada y evitar litigios largos y costosos.

¿Cómo puede ayudar IN DIEM Abogados en estos casos?

IN DIEM Abogados puede analizar el contrato, valorar la aplicación de la cláusula rebus sic stantibus, preparar una estrategia de negociación, revisar la prueba económica y defender judicial o extrajudicialmente la adaptación de las obligaciones contractuales.


Lawyers Specializing in Commercial Contracts | IN DIEM: Málaga, Seville, Madrid, Las Palmas de Gran Canaria, Almería, Huelva…

IN DIEM Lawyers has a long and solid track record in contracting, at national, EU, and international levels, having developed its activity for large corporations not only through standard contractual systems, but also through Strategic Alliances and Contractual Joint Ventures. In this regard, we will assist you in situations requiring contract modification in crisis situations, such as COVID-19 and the resulting state of alarm. Currently, IN DIEM Lawyers has offices in Málaga, Seville, Madrid, Las Palmas de Gran Canaria, Huelva….

The Contracting and International Area of IN DIEM is a highly specialized team that will securely contribute to the development of your operations and investments; providing technical and operational resources to analyze potential investments and operations, intervene in negotiations, or implement regulatory or legal compliance frameworks.

We are at your disposal for whatever you need. You can reach us through the IN DIEM Lawyers Telephone (+34) 901 900 071. In cases of Emergency, you have us at the 24-Hour Emergency Lawyers Telephone IN DIEM: (+34) 610 667 452.


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