Can a private individual buy a flat at a judicial auction?

Yes. Anyone can register as a bidder on the BOE auction portal, lodge the deposit and bid. You do not need to be a professional, but you do need to prepare the deal well by reviewing charges and occupancy.

How much do you have to deposit to bid?

Each auction notice states the prior deposit, usually a percentage of the auction value. You cannot bid without lodging it, and it is returned if you are not the winning bidder.

What happens if I win the flat and do not pay the rest?

If you do not complete payment of the award within the legal deadline, you can lose the lodged deposit and the property is awarded another way under procedural law. That is why you should only bid with real capacity to pay.

How to buy a flat at a judicial auction: step-by-step guide (2026)

How to buy a flat at a judicial auction in Spain step by step: the BOE auction portal, the deposit, the bid, the award and the charges you must review beforehand.

What a judicial auction is

A judicial auction is the procedure by which a court sells a property to collect a debt, usually an unpaid mortgage. The property is offered at an auction value and awarded to the highest bidder. It is one of the routes by which a private buyer can acquire housing below market price, but also one of the most worth preparing for.

The BOE auction portal

Judicial auctions in Spain are published and held electronically on the auction portal of the Official State Gazette (subastas.boe.es). There you find the notice for each asset with the auction value, the required deposit, the timeline and the procedure documentation. To take part you must register and identify yourself with an electronic identification method, such as a digital certificate or the Cl@ve system.

Requirements before bidding

Electronic identification to register as a bidder on the portal.
The prior deposit stated in the notice, usually a percentage of the auction value.
The ability to complete payment of the award within the legal deadline if you win.
Having reviewed the charges and the property's situation (the portal does not require this, but it is the most important part).

The auction step by step

Register as a bidder on the BOE auction portal and identify yourself.
Locate the property and study the notice: auction value, charges, deposit and timeline.
Lodge the required deposit so you can bid.
Bid during the period the auction is open, which lasts several days.
At close, if you are the highest bidder and your bid meets the legal thresholds, the court issues the award decree.
Complete payment of the award price within the set deadline and the property is registered in your name.

The charges you inherit

A property at auction may carry prior registered charges that are not cancelled on award: earlier mortgages, attachments or association debts. The general rule is that charges ranking after the one being enforced are cancelled, while prior and senior ones survive and are assumed by whoever wins the asset. Checking them in the Land Registry extract before bidding is essential.

The rank of the charge changes everything

A charge in first rank over the property is not the same as one in a lower rank. The senior creditor is paid first when the collateral is enforced. Understanding the position the debt holds in the order of payment is the difference between a good deal and a loss.

Occupancy: the other big risk

Winning an occupied flat can mean a long and costly eviction process, and it sharply reduces the liquidity of the deal. The notice does not always make clear whether the property is empty or occupied, so it is one of the data points most worth confirming before bidding. A good price on a flat you cannot even visit or sell for months stops being a good price.

Costs and taxes

On top of the award price you must add transfer tax (ITP) or VAT depending on the case, registry and possibly notary fees, plus any debts the property inherits. The real cost usually sits above the award price. We develop this in the guide on costs, taxes and charges at auction.

Where we fit in

Many auctions stem from an unpaid mortgage debt that a fund manages before the property reaches the public portal. At InvertirDeuda we organise that information, the debt, the collateral, the judicial phase and the occupancy, so you arrive at the auction with the data done, not improvising on bidding day.

Buying at a judicial auction carries risk: undetected charges, occupancy, long timelines and an uncertain recovery value. This guide is informational and does not replace professional advice on a specific transaction.

Frequently asked questions

Can a private individual buy a flat at a judicial auction?: Yes. Anyone can register as a bidder on the BOE auction portal, lodge the deposit and bid. You do not need to be a professional, but you do need to prepare the deal well by reviewing charges and occupancy.
How much do you have to deposit to bid?: Each auction notice states the prior deposit, usually a percentage of the auction value. You cannot bid without lodging it, and it is returned if you are not the winning bidder.
What happens if I win the flat and do not pay the rest?: If you do not complete payment of the award within the legal deadline, you can lose the lodged deposit and the property is awarded another way under procedural law. That is why you should only bid with real capacity to pay.