The security deposit in social housing follows the same legal rules as in the private sector since the ALUR law. The amount is capped at one month’s rent excluding charges for an unfurnished rental. The question of the “ideal” amount arises differently in social housing, where households often have limited savings and landlords develop specific practices to overcome this barrier to entry.
Security deposit in social housing: what HLM landlords actually practice
The legal cap sets a limit, not an obligation to reach it. Several HLM offices have chosen since 2023 to apply a reduced or staggered security deposit for the most modest households, particularly those accessing housing financed by PLAI (assisted rental integration loan). The Social Union for Habitat documented this trend in its report “Observatory of Unpaid Rent and Prevention 2024,” published in October 2024.
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Some offices go further. Experiments with mutualized internal guarantees partially replace the traditional security deposit, with a symbolic amount of half a month’s rent. The High Committee for Housing of Disadvantaged Persons (HCLPD) described these devices in a thematic note from June 2024 titled “Innovations in Securing New Tenants.”
For tenants looking to determine the deposit for social housing, the actual amount requested depends as much on the landlord’s internal policy as on the legal framework. The same organization may apply a full month on its standard properties and half a month on its very social housing.
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Housing solidarity fund and security deposit assistance
The FSL (Housing Solidarity Fund) is the main lever for financing all or part of the security deposit. The “access” allocations of the FSL have significantly increased since 2023, particularly for two profiles: households leaving accommodation structures and those engaged in a DALO procedure. This observation is included in the national FSL report 2023-2024 published by Dihal and Drees in February 2025.
The FSL can cover the entire security deposit or only a fraction, in the form of an interest-free loan or grant. Eligibility criteria vary from one department to another, making it difficult to generalize about the amounts granted.
Visale and social housing: an expanded coverage
The Visale guarantee, managed by Action Logement, now covers tenants in social housing and not just those in the private sector. This scheme does not replace the security deposit but offers the landlord a guarantee against unpaid rent, which changes the financial equation for the HLM organization.
A social landlord covered by Visale takes less risk on unpaid rent. In this context, requiring the maximum cap of the security deposit is less justified, as the Visale guarantee already secures the rent. Field feedback varies on this point: some offices maintain the full month despite Visale, while others agree to reduce it for eligible populations.
- The FSL finances the security deposit in the form of a loan or grant, with criteria specific to each department
- The Visale guarantee covers unpaid rent in social housing, reducing the risk for the landlord
- Action Logement also offers the Loca-Pass advance, a capped interest-free loan that can complement the FSL
Calculating the amount and special cases in furnished social rentals
For an unfurnished rental in social housing, the security deposit cannot exceed one month’s rent excluding charges. This amount is stated in the lease and cannot be revised during the contract or upon renewal.
Furnished rentals, including in social housing (residences for young professionals, mobility leases), allow for a higher security deposit, up to two months’ rent excluding charges. The mobility lease is an exception: no security deposit can be required in this context.
Payment installment: what practice says
The law does not provide for installment payments of the security deposit. The tenant must, in principle, pay the entire amount upon signing the lease. In practice, several social landlords accept a staggered payment over the first few months, especially when the FSL has not yet paid its share.
This flexibility remains at the discretion of the organization. It is not a tenant’s right and is generally not included in the lease itself. Available data does not allow for measuring how many social landlords offer this arrangement in a formalized manner.
Return of the security deposit at the end of the social lease
The return period is the same as in the private sector. If the exit inventory matches the entry inventory, the landlord has one month to return the full deposit. In case of damages found, this period extends to two months.
The social landlord can withhold from the security deposit amounts corresponding to unpaid rent, unregulated charges, or rental repairs. Each withholding must be justified by a document (invoice, estimate, comparative inventory).
- Return within one month if the exit inventory is compliant
- Return within two months in case of damages, with mandatory justifications
- Any unjustified withholding can be contested, including before the departmental conciliation commission
A security deposit not returned within the legal deadlines incurs penalties: a 10% increase of the monthly rent for each month of delay. This rule applies equally to social and private landlords.
The amount of the security deposit in social housing is not just a matter of legal cap. It results from a balance between the organization’s policy, the assistance available to the tenant, and the landlord’s insurance coverage. Affected households should check with their future landlord the exact conditions before signing and seek the FSL or Visale as early as possible in their process.