Notarial liability in Catalonia: Civil Code, CCCat and limitation after STS 506/2026
Judgment 506/2026 of the “Tribunal Supremo”, Spain's Supreme Court, of 7 April, addresses head-on which limitation regime applies to a claim in contract against a notary in respect of a deed executed in Catalonia. The “Audiencia Provincial”, the provincial appeal court, had held that the ten-year period laid down for personal actions in the “Código Civil de Cataluña” —the Catalan Civil Code, or CCCat— was applicable, but the Supreme Court overturns that approach and concludes that the Spanish Civil Code must be applied. Its reasoning rests on the fact that notarial liability is bound up with the regulation of authentic instruments, a matter falling within the State's exclusive competence, and on the need for a uniform answer regardless of the notarial district in which the negligent act occurs.
1.The case: a defective deed in Catalonia and the dispute over the limitation period
STS 506/2026 decides a cassation appeal brought by the heirs of a purchaser against the judgment of the provincial appeal court of Castellón, which had upheld the dismissal of their claim in contract against a notary on the ground that the claim was barred by limitation. The dispute arose out of a public deed of sale executed in Tortosa in 2006, by which the purchaser acquired a dwelling in L’Ampolla and took over an existing mortgage loan. On the strength of a statement by the developer's authorised representative, the deed recorded that the capital drawn down under the loan in respect of the property was 44,000 euros, a figure that proved to be false, since the capital actually drawn down amounted to 82,250 euros, part of it drawn down after the sale.
The purchaser paid various sums to the developer in the belief that they were being applied to repay the loan, and years later discovered that the developer had stopped paying the instalments and that the sums paid over had not been applied to repayment. The lender commenced mortgage enforcement proceedings, which culminated in the award of the dwelling. The purchaser died and her parents, as her heirs, brought a claim in contract against the notary for lack of diligence in verifying the truth of the seller's statements as to the amount drawn down under the loan, relying on articles 1101, 1104 and 1544 of the Civil Code, on the “Ley del Notariado”, the Notaries Act, and on the “Reglamento Notarial”, the Notaries Regulations.
The court of first instance dismissed the claim, holding it to be barred by limitation under the ten-year period in article 121‑20 of the Catalan Civil Code, running from the date of the deed. The provincial appeal court upheld that finding, taking the view that, although notarial obligations fall within the State's competence, since state legislation lays down no specific limitation period the CCCat had to be applied as the general civil law in force in Catalonia. The Supreme Court overturns that approach and holds that limitation of a claim for notarial liability is governed by the Spanish Civil Code.
2.The State's exclusive competence in notarial matters and the need for a uniform answer
The core of STS 506/2026 lies in identifying which body of law governs limitation of a liability claim against a notary. The Chamber starts from article 149.1.8 of the Constitution, which confers on the State exclusive competence over the regulation of public registers and authentic instruments, the “instrumentos públicos”. The Notaries Act and the Notaries Regulations, enacted under that head of competence, govern the notarial function, the nature and effects of the authentic instrument, the notary's obligations and the rules on his or her liability.
The Supreme Court reasons that a notary's liability in contract for professional negligence in attesting deeds falls within that area of exclusive state competence. The claim brought is founded on the Notaries Act, on the Notaries Regulations and on articles 1101, 1104 and 1544 of the Civil Code, which govern the contract for services —the “arrendamiento de servicios”— and liability for breach. Although the notarial legislation contains no specific limitation period for a liability claim, the gap must be filled by the Spanish Civil Code itself, as the general civil law supplementing state legislation, and not by the Catalan Civil Code.
The Chamber emphasises the need for a uniform answer in matters of notarial liability, regardless of the notarial district in which the negligent act occurs. If limitation of a liability claim against a notary were allowed to vary according to the regional civil law applicable in the autonomous community where the deed was executed, the result would be unwarranted fragmentation in an area that the Constitution reserves to the State. The notarial function and the regulation of authentic instruments must be governed by consistent criteria throughout the national territory, including as regards limitation of the liability claims arising out of that function.
3.The Spanish Civil Code as supplementary law and rejection of the CCCat period
STS 506/2026 recalls the case law of the full Chamber —the “Pleno”— on the precedence of the limitation period laid down in special state legislation where the obligation arises from a state statute enacted under an exclusive head of competence. In fields such as standard contract terms and consumer law, the Chamber has held that the applicable rules, limitation included, are those of the State and not those of the autonomous community, where competence lies with the State. That logic is carried across to the notarial field.
In the case under consideration, the provincial appeal court had applied article 121‑20 of the Catalan Civil Code, which lays down a ten-year period for personal actions for which no specific period is prescribed, running from the time when the action may be brought. The Supreme Court holds that application to be mistaken. A liability claim against a notary is founded on state legislation and on the Civil Code, and the gap as to limitation must be filled by article 1964 CC, which lays down the general limitation period for personal actions. Following the 2015 reform, that period is five years from the time when performance of the obligation may be demanded, although in the particular case, given the date of the deed and of the events, the Chamber must have regard to the transitional regime.
The Court does not go into the detailed calculation of the period, because its decision is confined to declaring that the provincial appeal court applied the wrong body of law and to remitting the case for a fresh judgment on the merits, the limitation defence having been rejected. What matters is the statement that the Spanish Civil Code, and not the CCCat, governs limitation of a claim in contract against a notary for professional negligence in attesting authentic instruments.
4.The notary's liability in contract and the nature of the claim brought
STS 506/2026 confirms that a notary's civil liability for the performance of his or her function is, in principle, liability in contract, tied to the characterisation of the notary's services as a contract for services. Article 1544 CC defines the contract for services as one by which one party undertakes to provide the other with a service for an agreed price, and academic commentary and case law have traditionally placed the relationship between notary and client within that category, albeit with qualifications flowing from the notary's public function.
The claim brought by the purchaser's heirs rests on breach of the notary's professional obligations, in particular the failure to verify the truth of the seller's statements as to the capital drawn down under the loan and the failure to warn the purchaser of the risks arising from taking over the mortgage. Reliance is placed on articles 1101 and 1104 CC, which govern liability for wilful misconduct, negligence or delay in the performance of obligations, and the obligation to act with the diligence of the Civil Code's “buen padre de familia”, the reasonable person standard.
The Supreme Court does not address the merits of the liability issue, because the question raised on cassation is confined to limitation. The characterisation of the claim as contractual and its links to state notarial legislation nevertheless reinforce the conclusion that the applicable limitation regime is that of the Civil Code and not that of the Catalan Civil Code. Notarial liability sits at the intersection of public office and contractual relationship, but its anchoring in the State's exclusive competence over authentic instruments determines that the general civil law applies as regards limitation.
5.Interregional conflict of laws, Catalan civil law and the scope of the decision
STS 506/2026 belongs to the context of Spanish civil-law pluralism, in which the Spanish Civil Code coexists with the civil laws of several autonomous communities, among them the Catalan Civil Code. Which body of law governs limitation of a particular action depends on the subject matter concerned and on the competence conferred by the Constitution. In matters of exclusive state competence, such as the regulation of authentic instruments, the supplementary general civil law of the Civil Code prevails over the regional civil laws.
The Supreme Court's decision does not deny the force of the Catalan Civil Code within its own sphere, nor does it call into question the application of the CCCat to civil relationships falling within the competence of the autonomous community, such as succession, obligations and contracts generally, matrimonial property regimes or condominium (“propiedad horizontal”). What it holds is that, where the claim is founded on state legislation enacted under an exclusive head of competence, gaps must be filled —limitation included— by the Spanish Civil Code, so as to ensure uniformity and to avoid divergent solutions from one territory to another.
In the notarial field, this means that a notary's liability in contract for professional negligence in attesting authentic instruments is governed, as regards limitation, by the Spanish Civil Code, even where the deed is executed in Catalonia and the parties hold Catalan “vecindad civil”, the regional civil-law status. The answer must be the same in Tortosa, in Barcelona or in any other notarial district, because the notarial function and the regulation of authentic instruments are matters reserved to the State.
6.Conclusion: notarial liability in Catalonia and limitation under the Civil Code
STS 506/2026 gives a clear answer to the question whether a notary's civil liability in contract in Catalonia is subject to limitation under the Spanish Civil Code or under the Catalan Civil Code. The Supreme Court concludes that the Civil Code must be applied, because notarial liability is bound up with the regulation of authentic instruments, a matter of exclusive state competence, and because of the need for a uniform answer regardless of the notarial district in which the negligent act occurs.
The judgment brings together professional liability, Catalan civil law, interregional conflict of laws and limitation, and lays down an important rule for litigation in Catalonia and in the rest of Spain. Claims in contract against notaries for professional negligence in attesting deeds executed in Catalonia will be governed, as regards limitation, by article 1964 CC and by state legislation, and not by the general period in the CCCat. For litigation practice, the decision is a reminder that identifying the body of law governing limitation calls for attention to the subject matter and to constitutional competence, and that in fields such as the notarial function state-wide uniformity prevails over regional solutions.
