What is an arras contract in Spain and how does it protect your property purchase?

If you are buying property in Spain, one of the most important steps in the process is signing a contrato de arras — a preliminary agreement that secures the transaction through a deposit paid by the buyer. This contract defines the terms of the sale, sets consequences if either party withdraws and acts as a binding commitment before the final deed is signed at the notary. For foreign buyers unfamiliar with the Spanish legal system, understanding the arras contract is essential to protecting your investment. At Ábaco Advisers, our team of independent lawyers reviews every arras contract to ensure it includes the protective clauses you need, communicated in your own language.

Unlike systems in the UK, Scandinavia or Central Europe, the Spanish contrato de arras has specific legal consequences that vary depending on the type agreed upon. According to the Colegio de Registradores de España, foreign buyers represent between 15% and 20% of all property transactions in Spain. Many arrive at this critical stage without fully understanding what they are signing.

What is an arras contract and why is it so important when buying in Spain?

An arras contract is a private agreement between buyer and seller that formalises their mutual commitment to complete a property transaction. The buyer pays a deposit — known as arras — which serves as both a financial guarantee and a confirmation of the agreed terms.

The concept does not have a direct equivalent in the UK, where the process involves an exchange of contracts, or in Scandinavian and Central European countries where different legal structures apply. This means foreign buyers in Spain often face a significant knowledge gap precisely at the moment when the financial stakes are highest.

Under Spanish law, the contrato de arras is not strictly mandatory for a sale to be valid. However, it is standard practice in virtually all residential property transactions and serves a critical protective function for both parties. It reserves the property for the buyer, confirms the agreed price and sets a deadline for completing the sale at the notary.

What are the three types of arras contracts in Spain?

Spanish law recognises three distinct types of arras, each with very different legal consequences. Choosing the wrong type — or failing to specify the type clearly — can have serious financial implications. The distinction is established through jurisprudence and doctrine of the Spanish Supreme Court, with only arras penitenciales expressly regulated in the Civil Code.

Arras penitenciales (penitential deposit)

These are the most commonly used type in Spanish property transactions and the only type expressly regulated by law. Article 1454 of the Spanish Civil Code states that if earnest money has been given in a purchase agreement, the contract may be rescinded, with the buyer forfeiting the amount paid or the seller returning double the deposit.

In practical terms, arras penitenciales give both parties a right to withdraw from the transaction. If you, as the buyer, decide not to proceed, you lose your deposit. If the seller changes their mind, they must return twice the amount you paid.

According to consistent Supreme Court jurisprudence (including STS 23 September 2014 and STS 25 April 2018), for arras to be considered penitenciales, this must be expressly and clearly stated in the contract. Ambiguous phrases like “as a deposit” or “on account of the price” are not sufficient. If the type is not specified, courts will interpret them as confirmatorias.

Arras confirmatorias (confirmatory deposit)

Arras confirmatorias function as proof of the contract’s existence and a partial advance payment of the purchase price. They do not grant either party the right to withdraw freely.

If one party breaches a contract with arras confirmatorias, the other party can take legal action to demand either specific performance (forcing the completion of the sale) or termination of the contract with a full claim for damages and compensation. This is governed by Articles 1101 and 1124 of the Spanish Civil Code and by Article 343 of the Commercial Code for mercantile transactions. For a foreign buyer, signing arras confirmatorias means you cannot simply walk away by losing your deposit — you could face a court claim for the full damages caused by your withdrawal.

Arras penales (penalty deposit)

Arras penales combine elements of both previous types. They establish a penalty for non-compliance — the buyer loses the deposit or the seller returns double — but unlike arras penitenciales, the non-breaching party can also demand that the contract be fulfilled in addition to claiming the penalty.

These arras are regulated by the provisions on penalty clauses (cláusula penal) in the Spanish Civil Code (Article 1152 and following). They are less common in standard residential transactions but important to understand, as a poorly worded contract could inadvertently create arras penales when penitenciales were intended.

Comparative table: the three types of arras

How much deposit should you expect to pay in an arras contract?

There is no legally fixed amount for an arras deposit in Spain. The sum is entirely a matter of negotiation between buyer and seller.

In practice, the most common amount is 10% of the agreed purchase price. However, deposits can range from 5% to 15% depending on market conditions and the circumstances of the parties. For faster transactions, a 5% deposit may be agreed. In more competitive markets, sellers may request up to 15%.

To put this in context, British buyers typically invest between €180,000 and €400,000+, Scandinavian buyers between €250,000 and €350,000, and buyers from Poland and Czech Republic between €150,000 and €250,000, according to data from the Consejo General del Notariado. On a €300,000 property, a standard 10% deposit means committing €30,000 — a sum that underlines the importance of getting the contract right.

Be cautious of reservation fees requested by estate agents before an arras contract is signed. These smaller payments (typically €3,000–€6,000) may not carry the same legal protections and can be difficult to recover. Always ensure any payment is documented in a proper legal agreement reviewed by your lawyer.

What essential clauses should your arras contract include?

A well-drafted arras contract must include, at minimum, the full identification of both parties, a precise description of the property with its Land Registry reference, the total purchase price, the deposit amount, the type of arras and the deadline for signing the public deed at the notary.

Beyond these basics, the following clauses are particularly important for foreign buyers:

• Type of arras clearly stated: the Supreme Court requires that arras penitenciales be expressly agreed. The contract must leave no room for ambiguity about the consequences of withdrawal.
• Conditions precedent: these allow the buyer to recover the deposit if certain conditions are not met — for example, obtaining mortgage approval or receiving a satisfactory result from the legal due diligence.
• Property verification clause: the seller should guarantee the property is free from charges, debts and encumbrances, and that all building works have the required licences.
• Distribution of costs: clearly specify who pays for ITP (property transfer tax), notary fees, Land Registry fees and plusvalía municipal.
• Deadline for completion: typically between 30 and 90 days. The timeframe must be realistic for the buyer to complete all necessary checks and arrange financing.
• Penalty and withdrawal terms: precise language on what happens if either party fails to complete within the agreed timeframe.

What happens if the buyer or seller withdraws from the arras contract?

The consequences of withdrawal depend entirely on the type of arras agreed in the contract. This is why correctly identifying the type is so critical.

• With arras penitenciales, the most common type, the rules are straightforward. If the buyer decides not to proceed, they lose the deposit — and that is the end of the matter. Neither party can claim additional damages. If the seller withdraws, they must return double the deposit to the buyer. For example, on a €300,000 property with a €30,000 deposit, a withdrawing seller would need to pay the buyer €60,000.
• With arras confirmatorias, the consequences are more serious. Neither party can simply walk away. The non-breaching party can go to court to demand specific performance or claim termination with full compensation for damages and losses.
• With arras penales, the non-breaching party keeps the penalty but can also demand that the contract be fulfilled, providing stronger protection but greater exposure for both parties.

One situation that commonly affects foreign buyers is when a mortgage application is denied after signing the arras. Without a clause making the sale conditional on obtaining financing, the buyer could lose their entire deposit. This is why including a mortgage condition clause is essential for any buyer who depends on bank lending.

Why should you never sign an arras contract without independent legal advice?

Signing an arras contract without independent legal review is one of the most costly mistakes a foreign buyer can make in Spain.

The most common problems arise when buyers sign contracts drafted by the seller’s agent or the seller’s lawyer. These contracts may not include protective clauses, or they may use ambiguous language that courts could interpret differently from what the buyer intended.

Research documented by the Colegio de Registradores and market analysis from Idealista highlights persistent risks in the Spanish property market affecting foreign buyers, including properties with undisclosed debts, irregular building works and, in some cases, fraud by unregulated intermediaries. A proper legal review before signing allows your lawyer to verify the property’s status at the Land Registry, check for outstanding debts and ensure the contract protects your interests.

The cost of comprehensive legal advice typically ranges between 1% and 2% of the purchase price. By contrast, resolving problems caused by signing without proper review can cost tens of thousands of euros and months of legal proceedings.

At Ábaco Advisers, we emphasise the importance of working with a lawyer who is entirely independent from the seller and the estate agency. Our team of 49 professionals speaks 10 languages and can explain every detail of your arras contract in your native language, ensuring nothing is lost in translation. For a free, no-obligation consultation, contact us.

Frequently asked questions about arras contracts in Spain

Can I sign an arras contract before obtaining my NIE number?

Technically, the arras contract is a private agreement and can be signed before obtaining a NIE. However, you will need a valid NIE to complete the purchase at the notary and to register the property. Start the NIE application process as early as possible to avoid delays.

Is the arras contract the same as a reservation agreement with an estate agent?

No. A reservation agreement is a simpler document with a smaller payment that takes the property off the market temporarily. An arras contract is a comprehensive legal agreement with defined consequences for withdrawal. The reservation fee is usually deducted from the arras deposit when the full contract is signed.

How long is the typical period between signing arras and completing at the notary?

The standard timeframe is between 30 and 90 days. Purchases involving a mortgage generally require 60 to 90 days to allow time for bank approval and property valuation. Cash purchases can sometimes be completed in as little as 30 days.

Can an arras contract be signed remotely if the buyer is not in Spain?

Yes. The contract can be signed through a power of attorney (poder notarial) granted to your lawyer. The power of attorney must be executed before a notary in your country and apostilled with the Hague Convention Apostille for use in Spain.