Buying a property in Spain is often the beginning of an exciting new chapter. It may be a holiday home, a retirement property, an investment or the first step towards relocating permanently. However, foreign buyers are frequently asked to make important legal decisions very early in the process. In many cases, they are encouraged to sign a reservation agreement and transfer several thousand euros before an independent lawyer has reviewed the property or the proposed contract.
These documents are sometimes presented as a simple formality intended only to remove the property from the market. Legally, they may be anything but simple.
A recent judgment of the Spanish Supreme Court, dated 9 April 2026, provides a useful reminder of the importance of understanding exactly what is being signed and, in particular, the legal effect of the deposit paid by the buyer.
The Supreme Court case
The case concerned a residential development and a series of reservation agreements signed between a property developer and prospective purchasers.
Under the agreements, the buyers paid deposits generally amounting to 6.000 €. The relevant clause expressly stated that the payment was made as arras penitenciales—a withdrawal deposit governed by Article 1454 of the Spanish Civil Code.
The clause provided that if the buyer decided not to proceed, the developer could retain the deposit. If the developer withdrew, the buyer would receive twice the amount originally paid. The development did not ultimately proceed as originally planned, and the developer exercised the right to withdraw, offering to return the deposits in duplicate.
The purchasers argued that the developer’s conduct should be treated as a contractual breach rather than a valid withdrawal. They also claimed that the deposit clause was unfair and should therefore be declared invalid.
The Supreme Court rejected those arguments. It concluded that the clause clearly identified the deposit as arras penitenciales and referred expressly to Article 1454 of the Civil Code. It therefore gave both parties a contractual right to withdraw from the proposed transaction.
Consequently, the developer’s decision not to proceed did not constitute a breach of contract. It was the exercise of a right expressly recognised in the reservation agreements, subject to the obligation to return twice the deposit received.
What are arras penitenciales?
Spanish law recognises different types of deposits, and the distinction is extremely important.
A deposit may simply confirm that a binding agreement has been reached and operate as a payment on account of the purchase price. In other cases, it may secure performance of the contract or establish a financial consequence in the event of breach.
However, arras penitenciales have a different purpose. They allow either party to withdraw lawfully from the transaction:
- If the buyer withdraws, the buyer loses the deposit.
- If the seller withdraws, the seller must return twice the amount received.
This is not necessarily a penalty for breach. It is the agreed financial price of exercising a contractual right to walk away.
The Supreme Court has traditionally stated that this type of deposit is exceptional and must be interpreted restrictively. There must be a sufficiently clear intention to give the payment this particular legal effect.
The mere use of words such as “deposit” or “reservation fee” may not be enough.
Why the wording matters
Foreign buyers sometimes assume that every deposit paid in Spain works in the same way. It does not.
The title given to a document is not decisive. A document described as a “reservation agreement” may create significant and binding obligations. Similarly, describing a payment simply as a “deposit” does not explain whether it is refundable or whether either party can withdraw.
The contract should make clear:
- The legal nature of the amount paid.
- Whether the payment forms part of the purchase price.
- Whether the buyer has the right to withdraw.
- Whether the seller also has the right to withdraw.
- What happens to the deposit in each scenario.
- The deadlines for signing the private purchase contract and completing before a notary.
- Whether the agreement is conditional upon legal, planning or financial checks.
The Supreme Court’s decision demonstrates that clear wording can have decisive consequences. In the case considered by the Court, the developer was not obliged to complete the sale or compensate the buyers for the increase in property prices beyond the agreed return of twice the deposit. The buyers’ expectations that the properties would eventually be delivered did not override the express terms of the reservation agreements.
Consumer protection applies
The fact that a contract contains an arras penitenciales clause does not automatically mean that the clause is valid in every case.Where the purchaser is acting as a consumer and the seller is a professional developer, Spanish and European consumer protection rules apply.
The clause must be transparent and understandable. The buyer must be able to appreciate both its legal meaning and its financial consequences.
It must also avoid creating an unfair imbalance between the parties. In the judgment of 9 April 2026, the Supreme Court considered that the clause was balanced because both parties were entitled to withdraw and each faced an equivalent financial consequence. The buyers would lose 6.000 €, while the developer would return the original 6.000 € plus an additional 6.000 €.
The Court distinguished this situation from a clause that would bind the consumer while allowing the professional seller to withdraw freely or interpret the agreement unilaterally. This distinction is important. A clause may be clearly written but still potentially unfair if it gives substantially greater rights to the seller than to the buyer.
As a foreign purchaser
For a foreign buyer, signing too early can create several problems. The buyer may transfer a non-refundable amount before confirming whether the property is legally registered, whether extensions or swimming pools have planning permission, whether there are debts or mortgages, or whether the property has the required occupation documentation.
The agreement may also omit important protections. For example, a buyer requiring mortgage finance should consider whether the purchase is conditional upon obtaining an acceptable loan. Without an appropriate financing condition, failure to obtain the mortgage may result in the loss of the deposit.
Likewise, a reservation agreement should not oblige the buyer to proceed before an independent lawyer has completed the necessary legal and planning checks.
This is particularly important because the estate agent, developer or seller’s representative does not act as the buyer’s independent legal adviser.
Questions to ask before paying a reservation deposit
Before signing or transferring money, a foreign buyer should establish:
- Is the payment refundable, and in what circumstances?
- Does the agreement give both parties the right to withdraw?
- What happens if the legal or planning checks identify a problem?
- What happens if the buyer cannot obtain the required mortgage?
The answers should appear clearly in the written agreement. Buyers should not rely solely on verbal assurances.
A properly drafted arras penitenciales clause can give both buyer and seller a lawful route out of the transaction. A different type of deposit clause may instead create a binding obligation to complete, with potentially much wider claims if one party fails to do so. The same legal principles apply to private sales.
For that reason, buyers should never assume that a reservation agreement is merely an informal step. By the time a dispute arises, the wording has already been agreed and the money has already been paid. Legal advice obtained before signing is therefore considerably more valuable than legal advice sought after the transaction has gone wrong.
Buying a home in Spain should be an exciting and secure experience. Taking independent advice at the beginning of the process is one of the simplest ways to protect both the investment and the buyer’s peace of mind.
Pedro Heredia is a Spanish lawyer and Partner at Pellicer & Heredia Lawyers. He advises international clients on property transactions, relocation, immigration and cross-border tax matters in Spain.
This article is provided for general information only and does not constitute legal advice. The legal consequences of a reservation or deposit agreement depend on its specific wording and the circumstances of each transaction.
