Security Deposits for Rentals in Asturias

The autonomous and bureaucratic handling of the legally required security deposit (fianza) used to represent one of the deepest legal contrasts when renting in the Principality of Asturias compared to its autonomous neighbors.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed Spanish attorney for advice specific to your situation. Information last verified: March 2026.

1. The Inescapable Base Amount (National LAU Requirement)

Although the Asturian authorities historically differed on "where to store it," the dictates regarding the strict original monetary amount applicable are strictly obeyed due to the imperative national base law (LAU):

• It is totally unrenounceable and mandatory to collect in cash the equivalent of one (1) pure, liquid month of mandatory rent for any accommodation classified as a "primary residence" (vivienda habitual) in Asturias.
• Through mutual agreement, the parties are enabled to add "Additional Guarantees and Blind Avals" to compensate or limit damages against defaults, without blindly exceeding an imperative maximum total equivalent to two (2) extra monthly quotas.

2. The End of "Private Retention" in Asturias

Pre-rulings from the year 2010 dictated that unlike Madrid or Andalusia, the Asturian landlord held no official bureaucratic penal requirement that coerced them into returning or yielding the parallel base monthly rent to the Asturian autonomous public treasury.

The Housing Law Upheaval: The forced transition derived from the "Proposed Housing Law for the Principality of Asturias" peremptorily alters all administrative blindness. It forcefully necessitates and explicitly makes it a Mandatory deposit before the Autonomous Administration of the Principality.

• Every landlord will be designated as a stipulated and assiduous mandatory depositor; requiring an explicit original registration that operationally establishes a new "Public Registry of Asturian Contracts."
• Blind Penalties for Operational Omission: Evading the submission of the pure accrued 1-month bill carries forceful and administrative infractions that expertly dictate fines reaching between 150 to 600 Euros per sanction. Furthermore, it completely interrupts the tenant's ability to claim the Asturian regional income tax (IRPF) deduction, causing cross-corporate damages.

3. Return and Exigencies upon Resolution

Culminating its mandate and the physical handover of the keys, it falls inescapably to the original owner/landlord to rescue that accrued fund by interpellating it (or returning the privately safeguarded base from their bank treasury) under the preclusive general Spanish requirement of the LAU. This must be executed in its entirety (if there was no pre-signed expert damage or debt for origin supplies) without crossing or exceeding the imperative limit of the first original month, 30/31 base days from handover. Delaying this interposes a default, generating punitive legal blind interest in compensatory addition to the outgoing resident.

Back to Asturias Rental Overview.