Security Deposits for Commercial Properties in Aragon

Renting out premises for use other than housing (commercial spaces) implies assuming higher financial risks, given the operational wear and tear associated with managing a business. The security deposit (fianza) for commercial locales, offices, and industrial warehouses in Aragon operates under the LAU but demands strict compliance with regional Aragon government platforms.

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.

Mandatory Deposit: Two Months

According to Article 36 of the national Spanish Urban Leases Act, collecting a cash security deposit is an unavoidable requirement when signing any lease in Spain.

For leases whose use is distinct from housing (retail shops, warehouses, offices, coworking spaces), the mandatory, legal minimum for this fianza is the equivalent of TWO months' rent, double the single month required for primary residences.

Important: When calculating the mandatory fianza, you must not include the tax component. The deposit should equal two months of the pure base rent, excluding the 21% VAT (IVA) and any IRPF withholdings.

The Mandatory DGA Deposit (WFIA System)

Unlike some other autonomous communities in Spain, the Government of Aragon rigidly requires the landlord to surrender and deposit these 2 months of fianza into the regional treasury.

The 2-Month Deadline

Corporate and private landlords in Zaragoza, Huesca, and Teruel have exactly two months from the date the contract is signed to deposit these funds with the DGA (Dirección General de Vivienda). Failure to meet this precise deadline incurs administrative sanctions and financial surcharges on the delayed amount.

The WFIA Platform

As of late 2025, Aragon completely digitized this process via the WFIA (Web Fianzas Aragón) online environment. Landlords must authenticate (using Cl@ve or an electronic certificate) and self-liquidate the deposit via bank card or direct account debit, practically eliminating paper forms and bank-teller visits.

Additional Guarantees: Unlimited by Law

Because commercial leases fall under Title III of the LAU—governed by the principle of "freedom of pacts" (libertad de pactos)—the landlord and the business owner are authorized to negotiate any number of financial guarantees beyond the required two-month cash deposit.

Unlike residential contracts (which cap extra guarantees at two months' rent), an Aragon corporate lease allows for uncontestable supplementary guarantees agreed upon by both parties. Common examples include:

• Six months' rent held in a blocked bank account.
• A first-demand bank aval (bank guarantee) for an entire year's rent.
• Corporate guarantees from international parent companies holding the landlord harmless against unexpected local business bankruptcies or early abandonment.
• Note: These additional guarantees are privately held; only the strict "2-month fianza" is deposited into the Aragonese WFIA system.

Retrieving the Deposit

Upon the termination of the commercial lease and the return of the keys:

1. The landlord logs into WFIA, proves the cessation of the lease, and requests the DGA to return the initial two-month deposit back into their bank account.
2. The LAU dictates the landlord has one month from the end of the contract to liquidate the deposit with the tenant, discounting unpaid rent, unpaid utilities, or repairs for significant structural damage caused by the business's operations.

Back to Aragon Commercial Overview.