Rental contract: differences between mandatory deposit and security deposit

by | Mar 1, 2025 | Tenants | 0 comments

Fianza y depósito en un contrato de alquiler

Security Deposit and Rental Deposit in Rentals: Differences and Obligations

The security deposit and the rental deposit are two legal figures present in lease agreements. The tenant must understand that their main purpose is to provide the landlord with security against two common concerns: that the tenant pays the rent on time and that they keep the property in good condition throughout the duration of the contract.

What are the deposit and the rental deposit in a lease agreement?

In both residential rental contracts and short-term or seasonal leases, the security and the rental deposit are mechanisms to safeguard the landlord’s interests.
While the security deposit is legally regulated and mandatory, the rental deposit is optional and agreed upon freely between landlord and tenant as an additional guarantee.

Key Differences Between Security Deposit and Rental Deposit

Legal Obligation

The security deposit is required by law:

  • 1 month’s rent for residential leases.

  • 2 months’ rent for leases of properties for non-residential use (offices, commercial premises, etc.).

The rental deposit, however, is optional and can be added as an extra guarantee, depending on the agreement between the parties.

Custody

The first must be deposited with the housing authority (in Madrid, this is the IVIMA—Instituto de la Vivienda de la Comunidad de Madrid).
The rental deposit remains in the custody of the landlord until the lease ends.

Amount

  • The security deposit equals 1 or 2 months’ rent, depending on the type of contract.

  • The rental deposit has no legal minimum or maximum. The amount is freely negotiated between landlord and tenant.

How to protect the tenant to recover security and rental deposits?

Both figures serve to:

  • Protect against unpaid rent.
  • Compensations for breaches of contract.
  • Repairs resulting from damages.
The reality is that these amounts are recovered as long as the relationship between the parties is good, and in general the rest of the neighbors have been respected, but above all, that payments have been made on time and in the correct manner, and that the furniture and the property have been properly cared for.

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