Commercial lease: is it legal to pay 9 months' rent in advance?

Imagine: you set up your ready-to-wear shop in Pessac, near Bordeaux. The commercial lease requires a security deposit of six months' rent inclusive of VAT and quarterly advance payment. In total, you pay more than nine months' rent exclusive of VAT in advance. Your cash flow takes a hit. You wonder: is such a clause legal? Can it be challenged?

This question was put to the Court of Cassation by a tenant, and it ruled on 7 May 2025 (No. 23-15.394). The answer is nuanced: yes, it is legal, provided the landlord pays the tenant interest on those sums, as required by Article L. 145-40 of the Commercial Code. But note: the additional obligation imposed on the tenant (beyond what the law provides) may, without consideration, reduce the rental value of the premises.

In short, this decision draws a red line for commercial leases. It directly concerns owners of commercial premises in Langon or elsewhere, tenant traders, and property professionals. Let's break it down.

The facts: a story that happens every day

A company leasing commercial premises in Pessac (Gironde) sees its lease come up for renewal. The initial lease provided for quarterly rent payable in advance and a security deposit of six months' rent inclusive of VAT. Result: the tenant paid the landlord more than nine months' rent exclusive of VAT in advance. A tidy sum that weighs on cash flow.

Upon renewal, the tenant applies to the commercial rent judge to set the new rent. It argues that these advance payment obligations constitute an excessive burden that should reduce the rental value of the premises. According to the tenant, these clauses impose an obligation going beyond what the law or custom provides, without consideration from the landlord. It therefore claims a reduced rent.

The landlord, for its part, retorts that these clauses are perfectly valid because the law (Article L. 145-40 of the Commercial Code) provides that rents paid in advance bear interest in favour of the tenant. There is therefore a legal consideration: the landlord must pay interest on the sums advanced. Consequently, the additional obligation is not without consideration.

Did the trial court rule in favour of the tenant at first instance? On appeal? The Court of Cassation had to decide. Twist: the High Court quashed the judgment of the Court of Appeal which had followed the tenant's reasoning, and remanded the case for a new decision.

The court's reasoning — analysed

The Court of Cassation relies on Articles L. 145-33, 3°, and R. 145-8 of the Commercial Code. These texts list the criteria for setting the rent of renewed commercial leases. Among them are the respective obligations of the parties: if the tenant bears abnormal charges (beyond the law or custom), this may reduce the rental value. But only if there is no consideration.

However, in this case, the disputed clause required payment of rent quarterly in advance and a security deposit of six months. In total, more than nine months in advance. But Article L. 145-40 of the Commercial Code provides that rents paid in advance bear interest at the legal rate. In other words, the landlord must remunerate this advance. The Court infers that this legal obligation to pay interest constitutes sufficient consideration. Therefore, the clause is not, in itself, a factor reducing the rental value.

Caution, however: the Court does not say that all advance payment clauses are valid. It specifies that this is the case when consideration exists legally. What few people know is that the decision does not rule on the amount of interest (legal rate, quite low) nor on the absence of other consideration. If the tenant can demonstrate that the clause imposes an excessive burden compared to the interest received, it could obtain a reduction. But the burden of proof lies with the tenant.

undefined, I have come across cases where tenants in Langon or Bordeaux complained about similar clauses. This decision reminds them that the mere existence of a rent advance is not sufficient to obtain a rent reduction; a concrete imbalance must be proved.

What this changes for you — concretely

For the landlord: you can continue to require a security deposit of six months and advance payment, provided you pay the tenant interest on these sums. The legal rate is low (around 3% in 2025), but you must provide for it in the lease or pay it spontaneously. Example: monthly rent of €2,000, deposit of €12,000, annual interest = €360. To be declared for tax purposes. If you do not pay the interest, the clause becomes contestable.

For the tenant: before challenging an advance payment clause, check whether the landlord pays you interest. If not, you can claim payment and, possibly, a rent reduction if you prove that the advance causes you harm (e.g., a cash flow need not covered by the interest received). In Langon, a trader with a monthly rent of €1,500 and a deposit of €9,000 could ask for a rent reduction of a few hundred euros per year if he demonstrates a bank interest rate higher than the legal rate.

For the buyer of a business: when signing the lease, negotiate the amount of the security deposit and the payment terms. Know that the law allows advances, but they have an opportunity cost. Insist on a clause providing for the payment of interest.

Four tips to avoid this type of dispute

• Draft a clear clause on interest for advances: in the lease, expressly provide that sums paid in advance (security deposit, rents) will bear interest at the legal rate, with an annual calculation date. This secures the landlord and prevents the tenant from challenging.
• Negotiate the amount of the security deposit: a six-month deposit is high. Propose a compromise, e.g. three months, and compensate with an autonomous bank guarantee. This reduces the cash tied up for the tenant.
• Make an inventory of abnormal charges: list all the tenant's obligations that go beyond the law (enhanced non-compete clauses, reinstatement works, etc.). Assess their cost and request written consideration.
• Consult a lawyer before signing or challenging: a commercial lease is a complex contract. A seemingly innocuous clause can have serious financial consequences. In Pessac as in Langon, have your lease reviewed by a lawyer.

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Further reading: related case law and developments

This decision is part of a consistent line of the Court of Cassation: additional obligations of the tenant are not automatically penalised; there must be an imbalance without consideration. This logic is found in a judgment of 13 September 2023 (No. 22-10.542), where the Court held that a clause requiring the tenant to bear compliance works without consideration constituted a factor reducing the rental value. But when consideration exists (such as legal interest), the clause is valid.

The trend of the courts is therefore to validate rent advance clauses, while reminding that the landlord must comply with its interest obligation. In future, tenants may increasingly challenge the level of interest (legal rate often lower than the market rate) or the lack of actual payment. The trial judges will have to assess on a case-by-case basis.

Frequently asked questions

Is a six-month security deposit always legal in a commercial lease? Yes, there is no legal cap. But the landlord must pay interest at the legal rate on this deposit. If the lease does not provide for it, the tenant can claim it.

Can I refuse to pay rent in advance if the lease requires it? No, the contract binds you. However, you can demand payment of interest and, if the landlord does not pay, apply to the court for a finding of breach.

What time limits apply to challenge an advance payment clause? The tenant can act at any time during the lease, but an action to fix the renewed rent must be brought within two years of the renewal. It is better to consult quickly.

Is the legal rate favourable for the tenant? No, it is often lower than the market rate. The tenant may argue that the consideration is insufficient and request a rent reduction, but current case law requires concrete proof of harm.

What if my lease does not mention interest on the security deposit? You can send a registered letter to the landlord reminding him of Article L. 145-40 and request payment of interest. If he refuses, consult a lawyer.

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