Buying land at a Spanish auction: what to check before you lodge the deposit

Spanish auction listings look like bargains because the starting figure is often a fraction of what a similar plot fetches on an estate agent's website. What the listing does not show is the work a private sale would have done for you. Nobody shows you round, there is no seller to question, and no notary reads the registry extract to you before you sign. You get a notice, twenty days and a deposit you forfeit if you win and then fail to pay.

This guide follows one real lot from 2026, a rustic plot of five and a half hectares at Roques Males, Sant Agustí d'es Vedrà, in the municipality of Sant Josep de sa Talaia on Ibiza. The Balearic tax agency (Agència Tributària de les Illes Balears, ATIB) put it up at €126,233. The local press reported it as a court auction. It was not, and that changes the deposit, the rules for awarding it and what happens to existing charges.

What follows is a first screen to decide whether a lot is worth bidding on, not legal advice. Anything the notice leaves open is settled by the Land Registry, the town hall, or a Spanish lawyer who reads the file.

Three different auctions on one website

The auction portal run by the Spanish Official Gazette agency (Portal de Subastas, subastas.boe.es) carries procedures governed by different laws. Identify which one you are in before looking at the land.

Only in the third column is the seller a willing owner who knows the land. In the other two, the registered owner did not choose to sell, will not show you round, and may still be on the property.

The Roques Males lot, line by line

According to the ATIB notice as reported by La Voz de Ibiza, the lot is:

• registered property (finca registral) no. 34429 at Land Registry no. 2 of Ibiza, at the place called Roques Males;
• a rustic plot of five hectares and fifty ares, i.e. 55,000 m²;
• with no cadastral reference assigned;
• starting price €126,233, deposit 5% of that, bidding steps of €2,524.66;
• enforcement file 11/C/01382.

The arithmetic to do first:

• Deposit: 126,233 × 0.05 = €6,311.65. Blocked for the length of the auction and lost if you win and do not pay the balance.
• Bidding step: €2,524.66 is exactly 2% of the starting price. Each bid has to beat the last by that amount.
• Automatic award: the notice says the best bid at or above 50% of the starting price is awarded outright; below that, the auction board decides. 126,233 × 0.5 = €63,116.50.
• Price per square metre: 126,233 / 55,000 = €2.30/m² at the starting price; €1.15/m² at 50%.

Before comparing that €2.30 with anything, you need to know exactly which land it is.

"No cadastral reference": what it means for you

Spain keeps two separate records of land. The Cadastre (Catastro) is a tax map with a polygon for each plot; the Land Registry (Registro de la Propiedad) records ownership and charges, often with only a written description. A plot with no cadastral reference has no polygon linked to its registry number. You cannot open the map, see its shape, measure its slope or overlay flood, protected-area, forest or coastal layers using anything the notice gives you. You have a written description at the Registry and nothing else.

To locate it:

1. Order a registry extract (nota simple) for finca 34429 at Ibiza Registry no. 2 through registradores.org. Read the description: area, boundaries on four sides, where it came from.
2. Check whether the entry has a georeferenced boundary. If it does, the Registry can give you coordinates.
3. If it does not, look in the Cadastre viewer for parcels whose owners match the boundary names. It is slow and does not always work: boundaries on old rustic entries often name people who died decades ago.
4. With an approximate location, check the planning rules of the Consell d'Eivissa and Sant Josep de sa Talaia, and the hazard layers.

If at the end you cannot place the plot on a map with the confidence you would demand in an ordinary purchase, the price per metre means nothing. You would be bidding on a registry number. Why Cadastre and Registry disagree even when both exist is covered in boundaries: Catastro vs Registry.

Court auctions after Organic Law 1/2025

Since 3 April 2025, when Organic Law 1/2025 on the efficiency of the public justice service (BOE-A-2025-76) came into force, court auctions of real estate work as follows.

Deposit. Articles 647.1 and 669.1 LEC now require 20% of the auction value of a property, with a €1,000 minimum, up from 5%. The court registrar may raise or lower the percentage for a particular auction, so read each lot's notice. The creditor enforcing the debt may bid without a deposit.

Timing. Bids are accepted for twenty calendar days from opening (art. 649 LEC). If you are moving money from abroad, count back from the opening date: the deposit has to be in place before you can bid at all.

Approval of the sale (art. 670 LEC). For land, which is never the debtor's habitual home:

• a best bid of 70% or more of the auction value is approved in favour of that bidder;
• below 70%, nothing is approved on the spot: art. 670 gives the debtor, and then the creditor, time to improve the position before the court registrar decides;
• in the end the sale can be approved if the bid reaches 50% of the auction value or, if lower, is enough to pay everything owed to the enforcing creditor, with a floor of 40% of the auction value. That 40% floor for property other than the debtor's home came in with the 2025 reform.

With an auction value of €100,000: a €20,000 deposit, automatic approval from €70,000, and a €45,000 bid that succeeds only if it pays off the whole claim. The notice states the amount for which enforcement was ordered.

No flipping. Only the enforcing creditor may assign the winning bid to someone else (art. 647.3 LEC). If you bid, you buy.

The charges that survive

Spanish enforcement law keeps a rule its own preamble describes: charges registered before the creditor's claim, and those ranking ahead of it, remain in place and the winning bidder takes them on; the auction price is not used to clear them. Later charges go: art. 674 LEC requires the court registrar to order the cancellation of every entry made after the registry certificate of charges issued for the auction (art. 656). Court notices repeat this in almost the same words every time.

For land, this means that if the auction is brought by a second creditor and a bank holds an earlier mortgage, the plot comes to you with the mortgage still on it. The court file contains the registry certificate of title and charges; the nota simple you order shows the same thing in less detail. How to read it is in charges, mortgages and embargoes.

People on the land

On a plot, the occupier is rarely a tenant in a house. More often it is an agricultural tenant, someone farming it informally, or a neighbour using a track. Article 661 LEC lets the buyer apply to have anyone without sufficient title removed; someone with valid title, such as an earlier rural lease, may stay. The notice usually says whether occupation is known. If it says it is unknown, take that literally.

Tax-office auctions: the Ibiza case

Tax collection auctions follow the General Tax Collection Regulation (RD 939/2005), as amended in 2017 to move them onto the BOE portal. For the national Tax Agency, art. 103 bis sets a 5% deposit when a lot contains real estate. The Roques Males notice, issued by the Balearic tax agency (ATIB), asks for the same 5%.

What the regulation and the notice say, in the order it affects you:

1. Bids are accepted for twenty calendar days from opening.
2. The starting price excludes indirect taxes on the transfer. If transfer tax is due, it comes on top.
3. After the close, the auction board meets within fifteen calendar days and awards the lot.
4. A winner who fails to pay the balance loses the deposit, and the board can award to the next bid or declare the auction void.
5. The debtor can redeem the property by paying the debt up to the moment the award is certified. You can win and end up with no land and your deposit back.
6. Transfer costs and taxes, including Land Registry fees, are for the buyer.

One practical point for buyers based abroad: AEAT auction notices describe the deposit being taken electronically as a hold on a current account at a bank that collaborates with the Tax Agency. In practice that points to a Spanish bank account opened before the auction starts.

State sales: rustic lots from €695

The third kind is the least like an enforcement. The State sells land that has come to it through intestate estates, land consolidation schemes or leftover expropriations. In March 2026 the Delegación de Economía y Hacienda in Soria announced an auction of 30 rustic plots in Berlanga de Duero, starting at €695, with the tender conditions available from its State Assets section in Soria and on the Ministry of Finance website.

The guarantee is set by statute: art. 137.6 of the Public Assets Act (Ley 33/2003), as worded since Law 8/2013, requires a 5% guarantee to take part, and the provincial finance offices' tender documents calculate it on the starting price of the round you bid in. The tender document for each lot gives the exact figure and how to lodge it. If an auction attracts no bids, the regulation allows up to three more, cutting the price by up to 15% each time, and lots still unsold can be offered by direct award.

A €695 plot is not a building plot at a discount. These are usually dry-farmed fields of a few hectares or less, sometimes with no access of their own. For someone extending a farm or wanting a piece of countryside, that may be exactly right. For building, almost never.

Before you lodge the deposit: the checklist

What you pay on top of the winning bid

Transfer tax or VAT. If the debtor is a private individual, the award triggers transfer tax (Impuesto sobre Transmisiones Patrimoniales, ITP). If the debtor is a business, the sale of a building plot carries VAT, while rustic or non-building land is VAT-exempt under art. 20.One.20 of the VAT Act (Ley 37/1992) and pays ITP instead, unless the seller waives the exemption where art. 20.Two allows it. The taxable base is not necessarily your winning bid. Since Law 11/2021, art. 10 of the consolidated transfer tax act takes the Cadastre's reference value (valor de referencia) as the base unless the price or declared value is higher. The Directorate-General for Taxes applied that rule to public auctions in binding ruling V2302-23, and the Constitutional Court upheld the reference-value system in judgment 13/2026 of 12 February 2026.

So if you win a plot at 50% of its starting price and its reference value is higher, you pay tax on the reference value. Look it up on the Cadastre's website with the lot's cadastral reference before bidding. Roques Males has no cadastral reference, so there is nothing to look up, which is one more unknown in the sum. Each region sets its own rate; they are listed in the cost of buying property in Spain.

Unpaid local property tax (IBI). Article 64 of the consolidated Local Finance Act makes the property itself answer for unpaid IBI when it changes hands, on the terms of art. 79 of the General Tax Act. If the debtor left bills unpaid, the town hall can pursue them against the land. Ask the municipal tax collection office whether the property carries any debt.

Neighbours' right to buy you out. Article 1523 of the Civil Code lets owners of adjoining rustic land step into the buyer's shoes when a rustic plot of no more than one hectare is sold to an outsider, at the same price. If the lot you want is rustic and under a hectare, ask a Spanish lawyer before you bid whether the neighbours could use this right against your award. The general rules are in agricultural land and minimum plot sizes.

Bidding from abroad

• Identification. To bid you register as a user of the BOE portal with an accepted electronic ID, a digital certificate or Spain's Cl@ve system. Both are tied to a Spanish identity number, so a foreign buyer needs an NIE (foreigner's identity number) first. See NIE for foreign buyers.
• Money. A court deposit of 20% must be available in cash, not as a mortgage offer. Spanish banks rarely lend against an auction win in the time allowed to pay the balance, so assume you pay from your own funds.
• Language. Notices, court files and tender documents are in Spanish, and in Catalonia, Valencia and the Balearics the registry and municipal documents may be in Catalan as well.
• Representation. Many foreign bidders act through a Spanish lawyer holding a notarised power of attorney. Agree with your lawyer, before the auction opens, who registers on the portal and whose funds back the deposit.

When not to bid

• You cannot place the plot on a map with a margin of error you would accept in an ordinary purchase.
• The registry certificate shows an earlier mortgage you have not added to the price.
• The reference value is far above what you plan to bid, and transfer tax on it eats the discount.
• The land is rustic, you want to build, and the plan does not allow it. Read what you can build first.
• It is a court auction and you do not have 20% of the auction value available without borrowing.

If you still want to go ahead, do the full sum: winning bid + surviving charges + transfer tax on the higher base + Registry fees + debts attached to the land. Compare it with what a similar plot costs on the open market.

If the lot has a cadastral reference, its land class, hazards and protection designations are in a TerrenoCheck report with source and date for €29, delivered within 45 minutes. Charges, occupiers and debts remain a matter for the court file and the Land Registry. Pin the plot on the map → · See a sample report