Commercial Lease: The Security Deposit in France

In France, the payment of a security deposit (dépôt de garantie) upon signing a commercial lease is neither legally mandatory nor strictly capped. However, it is an almost systematic (and highly recommended) clause during negotiations to guarantee the landlord that the merchant tenant will fully execute their obligations (rent, charges, restoring the property to good condition, rebillable taxes).

Disclaimer: This guide provides general legal information. Although there is no strict cap fixed by law currently, an Economic Simplification Bill studied in parliament in 2024/2025 could soon modify these caps and deadlines. Always verify the latest case law with legal counsel. Information verified in March 2026.

1. The Amount and Common Practices

Since the amount is left to the free negotiation of the parties, French custom very often establishes it as follows:

• Rent paid monthly in advance: Security deposit of 2 months of principal rent excluding charges and VAT (H.C. / H.T.).
• Rent paid quarterly in advance: Security deposit of 1 quarter (3 months) of principal rent H.C. / H.T.
• Rent paid quarterly in arrears (at maturity): Security deposit generally capped at 2 quarters (6 months).

The "Trap" of Applicable Interest

Article L. 145-40 of the Commercial Code stipulates a penalizing system for excessive deposits held by the landlord: "Rents paid in advance, in whatever form, and even as a guarantee, bear interest for the benefit of the tenant, at the rate practiced by the Bank of France (...) for the sums exceeding that which corresponds to the price of the rent of more than two terms."

Example: If the rent is €10,000 paid quarterly in advance. Two terms correspond to 2 quarters of rent (so 6 months, or €20,000). If the landlord demands a collection as a guarantee of 9 months (€30,000), the portion that exceeds the limit (€10,000) must mandatorily produce interest for the benefit of the tenant throughout the 9-year lease.

(Note: Under legislative discussions in 2024-2025, a proposed law aims to impose a strict true cap of 3 months of rent excluding VAT to avoid massive cash drain on merchants.)

2. The Security Deposit is Not Subject to VAT

A critical tax point: Unlike commercial rent which can be subject to VAT (by right or upon the landlord's fiscal option at 20%), the security deposit, in itself, does not constitute remuneration for a provision of service or a delivery of goods at the time of its initial payment.

• Therefore, VAT is not calculated on the call for funds of the deposit.
• It only escapes the tax temporarily: if, upon leaving the premises, the landlord decides to keep this advance to reimburse an unpaid commercial rent which was subject to VAT (the nature of the sum becomes that of a delayed rent invoice payment), then this final deduction will have to be broken down, and the landlord will pay the VAT to the Treasury.

3. Adjustment During the Lease

A lease drafted by professionals contains an "upgrading clause" or a "deposit readjustment clause." The initial guarantee must constantly track the real indexed rent and inflation.

• If the rent increases (via the ILC or ILAT indices, for example), the landlord will very often require the tenant to pay a supplementary guarantee.
• If the rent falls (a rare index drop, or via revision), the deposit often remains level unless contractual restitution of the variance is owed.

4. Return of the Deposit

Current law in France (Commercial Code) sets almost no mandatory maximum legal deadline (such as the 1 or 2 months prevailing in civil housing) to return the deposit to the industrial or commercial tenant once the walls are relinquished.

• The lack of text unfortunately means that the lease contract alone provides the timeline for its restitution (generally one reads: "within 2 to 3 months of effective departure following the handover of keys").
• Alert for anticipated new law in 2025: In order to stop certain abuses, the Senate's economic simplification project aims to formally lock the return of this deposit at a maximum of one quarter (3 months).
• If there is an unpaid balance, just as in residential housing, the sums (works, lawyer's fees rebilled in case of litigation) will be deducted upon presentation of memos, quotes, and building expertises linked to the contradictory move-out inventory.

5. How Landager Operates on Commercial Finances

Faced with the headache of VAT management for commercial leases being requalified in the event of a turbulent exit, Landager's architecture detaches an entire table specific to "Commercial Guarantee Reserves." This software alerts on the annual re-evaluation of the deposit if the checked contractual mention corresponds to an automatic readjustment annexed to the monthly Rent Due Notice linked to the period's ILC.

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