The Fianza: Apartment Deposits and Your Rights in Madrid

When you rent an apartment in Madrid, the biggest upfront cost—and the biggest source of anxiety when you leave—is the fianza (the security deposit).

The Ley de Arrendamientos Urbanos (LAU) is the national law that governs renting in Spain, and it lays out very specific rules about how much a landlord can ask for and how that money must be handled. Madrid also has its own specific regional rules about where that money is stored.

Here is what you need to know to protect your money.

How Much Can They Ask For?

The law makes a strict distinction between a standard long-term residential contract (vivienda habitual) and a short-term/temporary contract (contrato de temporada).

1. The Legal Deposit (La Fianza Legal)

By law, for an unfurnished, long-term residential rental, the mandatory fianza is strictly 1 month's rent. For furnished apartments or commercial spaces, it is 2 months' rent.

2. The Additional Guarantee (Garantía Adicional)

Because eviction laws in Spain are very protective of tenants, landlords often ask for additional financial security. The law allows them to ask for a garantía adicional, which is usually held as a bank guarantee (aval bancario) or just extra cash.

• The Limit: For long-term residential contracts, the maximum additional guarantee a landlord can ask for by law is 2 months' rent.

Therefore, the absolute legal maximum a landlord can ask you to pay upfront as a deposit for a long-term contract is 3 months' rent (1 month fianza + 2 months garantía adicional). If they ask for 6 months upfront as a "deposit," they are breaking the law.

(Note: Temporary contracts—contratos de temporada—are less regulated, and landlords can legally ask for higher deposits).

The IVIMA Rule: Where Does Your Money Go?

This is the most important thing to know about renting in the Comunidad de Madrid.

Your landlord is not legally allowed to keep your 1-month fianza in their personal bank account.

By law, within 30 days of signing the contract, the landlord must deposit your 1-month fianza with the Agencia de Vivienda Social de la Comunidad de Madrid (formerly known, and still colloquially referred to, as the IVIMA).

The IVIMA is a government body that holds the money in escrow. This protects you: the landlord cannot spend your deposit, and the government has a record of your rental contract.

How to Check if Your Landlord Did This

Unfortunately, many landlords skip this step to avoid paying taxes on the rental income. If they don't deposit it, you cannot claim the regional tax deduction for renting an apartment on your annual tax return (Declaración de la Renta).

You have the right to ask your landlord for the resguardo de depósito (the receipt from the IVIMA) to prove they deposited the money. If they refuse, you can go to the IVIMA office and request a certificate to see if a deposit exists for your address.

(Note: The extra 2 months of 'garantía adicional' do not go to the IVIMA; the landlord keeps that money in their own account).

Getting Your Money Back

When you move out, you and the landlord should sign a document ending the contract and stating that the keys were returned (documento de resolución de contrato y entrega de llaves).

• The Timeline: From the day you hand back the keys, the landlord has 30 days to return your deposit. (They must request the money back from the IVIMA, which usually takes a few weeks).
• Deductions: They can only deduct money for unpaid utility bills or damage that goes beyond "normal wear and tear." They cannot charge you for repainting walls or replacing an old washing machine that broke due to age.
• Late Interest: If they take more than 30 days to return the money, you are legally entitled to claim the legal interest rate on the amount owed.

What if They Refuse to Pay?

If the 30 days pass and the landlord goes silent or invents fake damages to keep your money, do not panic.

1. Send a Burofax: This is a certified, legally binding letter sent through the post office (Correos). It formally demands the return of the deposit and serves as proof in court that you asked for it. This often scares landlords into paying.
2. Go to Court (Juicio Verbal): If the deposit is less than €2,000 (which it usually is), you can take them to small claims court (juicio verbal) without needing to hire a lawyer or a procurador. You simply fill out a form at the local courthouse with evidence (your contract, the key return document, photos of the apartment when you left, and the unanswered Burofax).