Question 1

What are BOE auctions and what assets can I find?

Accepted Answer

[BOE auctions](/en/subastas-boe) (published in Spain's Official State Gazette) are public procedures through which seized or mortgaged assets are liquidated to settle unpaid debts. Through the BOE Electronic Auction Portal, investors can acquire residential [properties](/en/subastas-publicas-viviendas), [vehicles](/en/subastas-publicas-vehiculos), commercial premises and rural estates. subastAI aggregates and analyses all these daily opportunities from courts and public administrations in one place.

Question 2

How do I participate and bid in BOE electronic auctions?

Accepted Answer

To bid in a BOE auction you must be registered on the Official Auction Portal using a digital certificate or Cl@ve. You are also legally required to make a prior deposit (consignación), which is generally 5% of the auction value of the property or vehicle. If you are not the winning bidder, the deposit is returned to you in full.

Question 3

Is it safe to buy a seized apartment through the BOE?

Accepted Answer

Buying a seized property through the BOE can offer high returns, but it carries serious legal risks. Official auction notices may conceal prior registered liens, unpaid property tax (IBI) arrears or occupancy issues. subastAI's Artificial Intelligence audits the property registry entry and cross-references Cadastre data to reveal hidden risks before you commit your capital.

Question 4

What is the difference between judicial and administrative BOE auctions?

Accepted Answer

The BOE acts as a public notice board for different bodies. [Judicial auctions](/en/subastas-judiciales) originate from courts (mortgage foreclosures, debt seizures or insolvency proceedings). [Administrative auctions](/en/subastas-administrativas) arise from debts owed to the State, managed by bodies such as the [Tax Agency](/en/subastas-hacienda-aeat) (AEAT) or [Social Security](/en/subastas-seguridad-social). Our search engine lets you filter by the exact source of the enforcement action.

Question 5

Is there a guaranteed minimum bid in State auctions?

Accepted Answer

Many BOE auctions are published with no mandatory minimum bid. However, the law sets certain thresholds (typically 50% or 70% of the auction value) that guarantee direct award of the asset. If you bid below those legal thresholds, the creditor or debtor has the right to improve your offer. subastAI's financial dashboard automatically calculates the optimal bid thresholds to secure your investment.

Preguntas Frecuentes — Boe

What are BOE auctions and what assets can I find?

How do I participate and bid in BOE electronic auctions?

Is it safe to buy a seized apartment through the BOE?

What is the difference between judicial and administrative BOE auctions?

Is there a guaranteed minimum bid in State auctions?