I’ve been going crazy with house hunting lately. I finally found a small apartment I love in Barcelona, and the real estate agent is already pushing me to pay a deposit and sign a document called the Contrato de Arras. He’s telling me if I don’t sign, it might be gone by tomorrow, maybe snapped up by someone buying property in Spain for residency. I was a bit confused at first. What exactly is this payment? Is it like a standard security deposit? What if I can’t get my mortgage approved? Will I get my money back? After doing some research and consulting a lawyer friend, I’m sharing what I’ve learned to help others who are also on their property-buying journey.
First things first, the Contrato de Arras isn’t just a simple receipt. It’s a legally binding preliminary purchase agreement. Signing it means both the buyer and seller are committed to the deal, locking in the price, the property, and the deadline for signing the final deed of sale (escritura). This deposit is typically 5% to 10% of the property price and is paid directly to the seller, not the real estate agency.

The Three Main Types of Arras Contracts
This contract actually comes in three types, each with completely different implications. It’s crucial to understand which type you’re signing! The vast majority of contracts offered by agents are of the first type described below.
Arras Penitenciales
This is by far the most common type, used in over 95% of cases. Its core principle is ‘backing out has a price.’ It’s binding for both parties:
- If the buyer backs out: Whether they change their mind or their mortgage application is rejected, the entire deposit is
lost and forfeited to the seller.
- If the seller backs out: If they decide not to sell or accept a higher offer from someone else, they must return double the amount of the deposit to the buyer.
I’ve summarized this in a simple table for better understanding:
| Defaulting Party | Consequence |
| Buyer | Loses the entire deposit paid. |
| Seller | Must pay the buyer double the deposit. |
Arras Confirmatorias
This type of contract acts more like a ‘proof of down payment’ for a formal transaction. If either party defaults, the other cannot simply walk away with the money. Instead, they can go to court to either legally compel the other party to complete the sale or sue for damages. This type is less common nowadays.
Arras Penales
This one is more complex, combining features of the other two. If one party defaults, they must pay the deposit as a penalty, but the non-defaulting party still retains the right to demand the compulsory fulfillment of the contract. In other words, even after receiving the penalty payment, you can still take legal action to force the sale/purchase of the property.
A final word of advice: before signing any Arras contract, always have a lawyer or a professional review the terms for you. Pay special attention to crucial details like the deadline for the final transaction, whether the property has any outstanding debts, and who is liable if the mortgage financing falls through. A single signature can involve tens of thousands of euros, so don’t be careless! I wish everyone a smooth and successful home-buying journey!