Unfair Mortgage Clauses in Spain: How to Claim Your Money Back

🇪🇸 Read the original in Spanish

Signing a mortgage is, for the vast majority of citizens and foreign residents in Spain, the most significant financial commitment of their lives. However, for decades, Spanish banks systematically introduced unfair terms into these contracts, taking advantage of information asymmetry and the lack of bargaining power of consumers. If you suspect that your mortgage loan contains null and void clauses that have caused you to overpay, you should know that Spanish legislation and the jurisprudence of the Court of Justice of the European Union (CJEU) protect you so you can recover every single cent. In this guide prepared by the experts at AbogadoAI, we explain in detail which clauses are unfair, how to identify them, the legal framework that protects you, and the exact steps to claim successfully.

The Legal Framework: Why Are These Clauses Null and Void?

The fundamental principle governing the nullity of unfair terms in Spain is the significant imbalance in the rights and obligations of the parties, to the detriment of the consumer. The reference regulations to combat these abuses are based on several legislative pillars:

• The Spanish Civil Code: In its Article 1,256, it establishes that the validity and compliance of contracts cannot be left to the discretion of one of the contracting parties. Likewise, Article 1,303 regulates the effects of a declaration of nullity, forcing the parties to reciprocally restore the things that were the subject of the contract, along with their fruits and the price with interest. This article is the master key to demanding the return of money unduly charged.
• *The Ley General para la Defensa de los Consumidores y Usuarios (General Law for the Defence of Consumers and Users - Royal Legislative Decree 1/2007): Defines in its Article 82 what is considered an unfair clause (those stipulations not individually negotiated that cause a significant imbalance) and declares them null and void de pleno derecho* (by operation of law).
• Council Directive 93/13/EEC: The European regulation on unfair terms in consumer contracts, whose interpretation by the CJEU has on numerous occasions corrected the doctrine of the Spanish Tribunal Supremo (Supreme Court), always in favour of the consumer.

It is important to note that, although the mortgage market is closely linked to the right to housing, the Ley 12/2023 por el derecho a la vivienda (Housing Right Law) and the Ley de Arrendamientos Urbanos (Urban Rental Law - LAU) focus on the rental market and land planning. Therefore, the legal basis for claiming mortgage refunds lies strictly in the Civil Code, consumer legislation, and the Ley de Enjuiciamiento Civil (Civil Procedure Law - LEC) for the procedural phase.

The Most Common Unfair Clauses in Spanish Mortgages

To be able to claim, you must first identify which clauses in your mortgage loan deed violate the law. The most common ones are:

1. Mortgage setup expenses clause (cláusula de gastos de constitución de hipoteca)

For years, banks forced the customer to pay 100% of the mortgage formalisation costs. After a long legal battle, the Tribunal Supremo determined the equitable distribution of these costs. Currently, if your mortgage is prior to the Ley de Contratos de Crédito Inmobiliario (Real Estate Credit Contracts Law) of 2019, you can claim the refund of:

• 100% of the property registry fees (registro de la propiedad).
• 100% of the administrative agency fees (gestoría).
• 100% of the property valuation costs (tasación).
• 50% of the notary fees (notaría).

The Impuesto de Actos Jurídicos Documentados (Stamp Duty - IAJD) is, generally, paid by the borrower according to consolidated case law, except in very specific circumstances.

2. Floor clause (cláusula suelo)

This is a minimum limit on the variable interest rate (usually benchmarked to the Euribor) that prevents the mortgage holder from benefiting from drops in interest rates. If your contract includes a floor (for example, of 3%) and the Euribor plus the differential falls to 1.5%, the bank will have continued to charge you 3%. These are null and void due to a lack of transparency, as banks did not properly inform customers of their existence or their financial impact.

3. Abusive default interest (intereses de demora)

These are applied when the customer is late in paying their monthly instalments. The Tribunal Supremo established that default interest cannot exceed the remunerative interest agreed in the contract by more than 2 percentage points. Any higher percentage (it was common to see default interest of 15% or 20%) is considered abusive and null.

4. Early foreclosure clause (cláusula de vencimiento anticipado)

This allowed the bank to unilaterally terminate the contract and demand the return of the entire loan if the customer missed a single monthly payment. Jurisprudence and subsequent legal reform drastically limited this possibility, requiring non-payments of at least 12 months or 3% of the loan capital during the first half of the loan's life.

5. Opening commission (comisión de apertura) and other fees

The opening commission is only valid if it corresponds to services actually rendered and real expenses incurred by the entity, something the bank must prove transparently.

Practical Example: The Financial Impact of Claiming

To understand the economic magnitude of these claims, let us analyse a practical case with realistic figures from the Spanish market.

> Example: María signed a mortgage in 2015 for an amount of €150,000 to purchase her main residence. The bank forced her to pay all setup expenses and, additionally, her contract included a cláusula suelo (floor clause) of 2.5%. > > After reviewing her deed with an expert, María discovers she can claim the following: > > 1. Mortgage expenses paid at the time: > Notary: €800 (claims 50%): €400 > Property Registry (claims 100%): €250 > Gestoría (claims 100%): €350 > Valuation (claims 100%): €300 > Subtotal of expenses to recover: €1,300 > > 2. Floor clause: > Due to the 2.5% floor clause, María could not benefit from the negative Euribor rates between 2016 and 2021. Calculating the difference between what she paid with the floor and what she should have paid according to the real Euribor of those years, the bank unduly charged her an average of €120 extra per month for 60 months. > Subtotal of overcharged interest: €7,200 > > 3. Legal interest: > To these amounts, we must add the legal interest on money accumulated since the payments were made. > > Total accumulated amount María can recover: €8,500 (plus the corresponding interest).

Step-by-Step Guide to Claiming Unfair Clauses

The process to recover your money is perfectly structured and consists of an out-of-court phase and, if necessary, a judicial phase.

Step 1: Locate and analyse the mortgage deed

You must look for the original deed of your mortgage loan (escritura de préstamo hipotecario), not the property purchase deed. If you cannot find it, you can request an authorised copy from the notary who signed it or go to the Registro de la Propiedad (Property Registry) to request a nota simple (property registry extract). Review the clauses relating to "Expenses borne by the borrower", "Limits on interest rate variation", and "Default interest".

Step 2: Gather the expense invoices

To claim setup expenses, you need to provide the original invoices from the notary, the property registrar, the gestoría, and the valuation company. If you do not have them, you can request them from the gestoría that processed your mortgage or from the professionals involved.

Step 3: Submit an out-of-court claim to the Customer Service Department (Servicio de Atención al Cliente - SAC)

You must draft a formal written claim addressed to the Servicio de Atención al Cliente of your banking entity (or the entity that has absorbed your original bank). In this document, you must identify the loan contract, detail the unfair clauses whose nullity you are requesting, and quantify the exact amount you demand to be returned.

The bank has a maximum period of 1 month (if you are a consumer) to reply to your claim.

Step 4: Judicial route (Civil lawsuit)

If the bank rejects your claim, offers an unsatisfactory partial agreement, or does not respond within the 1-month period, you must go to court. To do this, an ordinary lawsuit (juicio ordinario) is filed before the Juzgados de Primera Instancia (Courts of First Instance) specialized in unfair clauses.

• For claims exceeding €2,000, the intervention of an Abogado (lawyer) and a Procurador (court agent) is mandatory.
• If the ruling declares the clauses null and void due to being abusive, the bank will be ordered to return the amounts and, usually, to pay the court costs (costas), meaning the process could end up costing you nothing.

Mistakes to Avoid When Claiming

Making mistakes during the claim process can cause you to lose money or invalidate your right to recover what belongs to you. Avoid the following common errors:

• Signing trap agreements with the bank: Many financial entities, aware that they will lose in court, offer customers the removal of the floor clause or the return of a portion of the expenses in exchange for the customer signing a document waiving future legal actions. Do not sign anything without having an independent lawyer review it. The CJEU has declared many of these waiver agreements null and void if they do not meet strict transparency requirements.
• Thinking the deadline has expired: The action to declare the absolute nullity of an unfair clause is imprescriptible (it does not expire). It does not matter if you signed the mortgage in 1998, 2005, or 2012, nor does it matter if the mortgage is already fully paid off and cancelled. You can still claim. The only aspect that has been subject to debate regarding limitation periods is the restitution of expenses, but CJEU jurisprudence from 2024 ruled that the 5-year limitation period to claim the money does not start running until the consumer has effective knowledge of the unfairness of the clause (normally, when there is a final court ruling on their specific case).
• Not providing the expense invoices: It is not enough to say that you paid the setup expenses; you must prove it with documentation. If you file a lawsuit without the notary, registry, or gestoría invoices, the judge will not be able to quantify the refund, and you will lose that part of the claim.
• Confusing the mortgage with the property purchase: Remember that the expenses of buying the house (such as the Impuesto de Transmisiones Patrimoniales - Property Transfer Tax - ITP, or VAT) cannot be claimed from the bank, as they are mandatory state/regional taxes for acquiring the property. You can only claim expenses strictly associated with the mortgage loan.

Frequently Asked Questions (FAQ)

Can I claim if I have already sold the house and cancelled the mortgage?

Yes, absolutely. The absolute nullity of an unfair clause is not validated by the passage of time or the termination of the contract. Even if the mortgage has been cancelled for years, you have the right to claim the return of everything you overpaid due to the floor clause or setup expenses.

What happens if the bank I signed the mortgage with no longer exists?

The banking consolidation process in Spain has caused many entities to disappear (for example, Popular, Banesto, Bankia, Caixa Catalunya, etc.). You must direct your claim to the financial entity that has absorbed or acquired the bank with which you signed the original contract (for example, Santander, BBVA, or CaixaBank). Legal obligations and liabilities are transferred to the successor entity.

How long does a judicial claim usually take to resolve?

The out-of-court phase (claiming to the bank) is resolved in a maximum of 30 days. If it is necessary to go to court, the timeframe depends on the saturation of the specialized court in your province. On average, a first-instance ruling can take between 8 and 18 months. Although it may seem like a slow process, the success rate in favour of the consumer is over 95% in most Spanish courts.

Do I have to pay taxes on the money returned by the bank?

The refund of mortgage formalisation expenses is not subject to personal income tax (IRPF), as it is considered compensation to restore a previous situation and not an increase in wealth. However, if you deducted these expenses in your tax return at the time (as a deduction for a primary residence), you must submit an amended tax return (declaración complementaria). In the case of the floor clause, the returned money is not taxed, but if those interest payments formed part of your home acquisition deduction, you will have to regularise the last 4 non-prescribed years.

Summary

• Absolute nullity: Unfair clauses are null and void de pleno derecho, and the action to claim their nullity does not expire, even if the mortgage is already paid off.
• Recoverable expenses: You have the right to recover 100% of registry, gestoría, and valuation fees, and 50% of notary fees for mortgages signed prior to 2019.
• Floor clause: If your contract had a minimum interest limit that prevented you from benefiting from drops in the Euribor, the bank must return all the overcharged money plus legal interest.
• Mandatory out-of-court step: The first step is always to submit a written claim to the bank's Customer Service Department, which has 1 month to reply.
• Beware of agreements: Do not sign any waiver of action documents proposed by the bank without obtaining advice from an independent legal expert.

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.

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