A deposit can be the point at which a promising Spanish property purchase becomes a binding financial commitment. Spanish deposit contracts, commonly known as contratos de arras, are widely used between agreeing a price and completing before a notary. They can protect both parties, but the outcome if someone withdraws depends heavily on the wording — not simply on the amount paid.

For an overseas buyer, this is a stage to slow down rather than rush. A seller may be keen to take the property off the market, especially in competitive coastal, city and holiday-home locations. Yet paying a deposit before the legal position, planning status and ownership records have been properly checked can create avoidable exposure.

What is a Spanish deposit contract?

A Spanish deposit contract is a private agreement between buyer and seller. It usually records the property, agreed price, deposit amount, proposed completion date and conditions each party must meet before signing the final title deed at the notary.

It is not the same as the escritura pública, the public deed usually signed before a notary to formalise completion. An arras agreement is generally a private pre-completion contract, although the legal effect of any agreement depends on its wording and the arrangements for delivery and possession. It can create enforceable obligations, setting out what happens if the buyer fails to complete, if the seller refuses to proceed, or if an agreed condition cannot be met.

The word arras is often translated simply as “deposit”, but this can be misleading. In practice, Spanish contracts use several forms of arras, with materially different consequences. A buyer should not assume that the familiar approach from the UK, US or Australia applies.

An arras contract is not compulsory in every Spanish property purchase, but once a binding agreement is signed, its terms can have significant consequences.

The main types of Spanish deposit contracts

Arras penitenciales: the withdrawal deposit

Where the parties want a clearly defined right to withdraw, they may agree to arras penitenciales. This arrangement is associated with Article 1454 of the Spanish Civil Code, but buyers should not assume that every deposit contract provides this right. The type of arras agreed can make a significant difference to the remedies available.

Under a valid arras penitenciales arrangement, if the buyer exercises the agreed right to withdraw, they generally lose the deposit. If the seller withdraws, they generally repay double the amount received. For example, where a buyer has paid €20,000, a seller who withdraws under these terms may owe €40,000.

That sounds straightforward, but the agreement should clearly identify the payment as arras penitenciales and set out the intended consequences. The complete wording matters, so do not rely solely on an estate agent’s description or an informal email. The label alone may not settle the legal effect of the contract.

Arras confirmatorias: evidence of a binding sale

Arras confirmatorias are evidence that the parties have agreed a sale and that the buyer has made part-payment. They do not automatically give either side a simple right to walk away by losing or doubling the deposit.

If there is a breach, the innocent party may be able to seek performance of the sale or claim losses, depending on the circumstances and the contract terms. This can create more uncertainty and potentially more dispute than a clearly drafted withdrawal arrangement. It may suit parties who genuinely want to commit, but international buyers should understand the available remedies before signing.

Arras penales: a contractual penalty

Arras penales attach an agreed financial consequence to non-performance. Their effect depends on the wording: the parties should establish whether the penalty is intended to be the sole remedy or whether further damages or enforcement may also be sought. Because the consequences can go beyond forfeiting a deposit, this type of agreement requires particularly careful legal advice.

Reservation fees are not always arras

Before a full deposit contract, some agents or developers ask buyers to sign a reservation form and pay a smaller reservation fee. This may remove the property from marketing for a short period while the buyer’s lawyer carries out initial checks.

A reservation agreement can be useful, but it should answer practical questions clearly: how long is the reservation period, who holds the funds, when are they refunded, and what happens if a legal issue emerges? A document called a “reservation” may still contain binding commitments, while another may be little more than an administrative holding arrangement.

The key point is not the label. It is the document’s legal effect, the conditions attached to repayment and whether the money is being held independently.

What should be checked before paying a deposit?

A deposit contract should follow meaningful due diligence, not replace it. In a fast-moving market, a buyer may agree commercial terms early, but the contract should leave enough time and appropriate safeguards for a qualified Spanish property lawyer to investigate the property.

Core checks normally include confirming the seller’s identity and authority to sell, reviewing the Land Registry information, checking for mortgages, embargoes or other charges, and comparing the registered description with the actual property. A Land Registry search, known as a nota simple, can help establish who owns the property and identify registered charges. Your adviser should also consider planning permissions, licences, cadastral details, local taxes, community fees and any restrictions relevant to the intended use.

This is especially significant for rural homes, converted properties, new builds and properties with extensions or outbuildings. A swimming pool, terrace enclosure or additional room that looks established may not necessarily appear correctly in the legal or planning records. The right response depends on the issue: it may be resolvable, require a price adjustment, or mean walking away.

For flats and homes within a community of owners, buyers should also ask about outstanding community charges, planned major works and rules affecting holiday lets. A property that suits personal use may not be suitable for rental income if local licensing requirements or community restrictions limit short-term letting.

Clauses that deserve close attention

The best deposit contract is specific. Broad phrases such as “subject to normal checks” can leave too much open to argument. A lawyer can tailor conditions to the property and the buyer’s circumstances, but several areas regularly warrant attention.

The agreement should identify the property accurately, including its registry details, address, fixtures and any storage room or parking space included in the price. It should confirm the total purchase price, deposit sum, payment method, taxes or costs allocated to each side, and the date by which completion must take place.

Where finance is needed, the contract should deal expressly with mortgage approval. A buyer who signs an unconditional arras agreement and is later declined finance may still lose the deposit. A finance condition can reduce that risk, but it should define the loan amount, deadline and evidence needed to show reasonable efforts were made to obtain lending.

Currency is another practical issue for buyers funding a purchase in pounds, dollars or Australian dollars. Exchange-rate movements can change the real cost of a euro-denominated property between the deposit date and completion. The contract will normally state euro figures, so buyers should plan their currency strategy and ensure funds can arrive on time.

It is also sensible to include conditions dealing with clear title, the cancellation of existing charges at completion, required licences, vacant possession where applicable, and satisfactory checks on planning or community debts.

If the seller is non-resident for Spanish tax purposes, the completion arrangements deserve particular attention. In a standard transaction, the buyer is generally required to withhold 3% of the agreed price and pay it to the Spanish Tax Agency within the applicable deadline. Your lawyer should confirm how this applies to the specific transaction and ensure the withholding is accounted for correctly.

How much is the deposit and where should it go?

There is no single legally fixed percentage for Spanish property deposits. Ten per cent is common in many resale purchases, but the right amount depends on the transaction, local practice and negotiating strength. New developments can operate on staged payments, subject to separate protections and documentation.

For a home under construction, buyers should also verify the protections covering advance payments to the developer. Relevant advance payments are generally required to be covered by a bank guarantee or insurance when the applicable legal conditions are met. Ask your lawyer to confirm that the required protection is in place and covers the amounts you pay.

More important than choosing a familiar percentage is establishing who will hold the money. Payments may be made to the seller, agent, developer or, where appropriate, a lawyer’s client account. Buyers should obtain written confirmation of the recipient, the purpose of the funds and the circumstances in which they can be released or returned. Do not assume that money paid to an agent is automatically held in an independent escrow account.

Avoid sending money to an account supplied by an unverified email. Property transactions are a target for payment fraud, particularly where parties are communicating across borders. Confirm bank details using a known telephone number and obtain independent confirmation from your legal adviser before transferring funds.

A practical route from offer to completion

Once a price has been agreed, appoint an independent Spanish lawyer who acts for you, rather than relying solely on a professional introduced by the seller or developer. The lawyer can review the proposed reservation or arras contract before any binding payment is made.

Ask for a clear explanation of the chosen form of arras, the financial consequences of withdrawal and every deadline. If you need finance, are selling another property, require a tourist-rental licence or need a particular completion date for residency or relocation plans, raise this before signing. It is far easier to negotiate a condition at the outset than after funds have been paid.

For a broader overview of the buying process, read our guide to buying a property in Spain. Buyers searching across the country can also use Europe.Properties to browse properties for sale in Spain, but each chosen property needs its own legal review. Regional practices, property types and local planning histories all affect the checks required.

A well-drafted deposit agreement should not feel like a hurdle between you and the keys. It should give you a clear, documented route to complete the purchase — and a defined level of protection if the property or the transaction does not stand up to scrutiny.