Rent renegotiation rules

The triennial revision under article L145-38 of the commercial code allows for rent renegotiation three years after the lease commencement or renewal, with subsequent revisions every three years. The variation is capped at the commercial rent index or the tertiary activities index, unless there is proof of a material change in local commercial factors causing a variation of more than 10% in the rental value.

Limits on rent changes

Even in cases where there is proof of a material change in local commercial factors, the resulting increase cannot exceed 10% of the previous year's rent. For tenants experiencing a decline in activity, the revision is only useful if the rental value has indeed decreased, which requires a solid economic demonstration.

Floating scale clauses

When the lease contains a floating scale clause, article L145-39 opens a revision whenever the clause has caused the rent to vary by more than a quarter compared to the previously fixed price. The negotiation often hinges on the drafting of the indexing clause itself.

Legal interpretation of clauses

The Court of Cassation has ruled that a clause that only operates in the case of an increase in the index fails the legal revision mechanism and must be deemed unwritten, including in ongoing leases at the time of the entry into force of the law of June 18, 2014. It has specified that only the prohibited stipulation is deemed unwritten, and not the clause as a whole, unless its indivisibility is demonstrated.

Consequences of invalid clauses

The stakes are significant: depending on the wording, the tenant may obtain the neutralization of the sole downward restriction or, more rarely, of the entire indexing, with the return of sums improperly collected within the limits of the statute of limitations. The law of May 26, 2026 has consecrated the so-called "tunnel" clause, which frames the annual variation of the index in the same proportions, upwards and downwards.

Validity of the tunnel clause

Symmetry is the condition of its validity, which makes it a balanced renegotiation tool rather than a disguised floor. In the case of unlimiting, the smoothing of the increase to 10% per year provided for in article L145-34 should not be confused with the fixing of the rent. The Court of Cassation has ruled that it is merely a spreading of the increase, distinct from the fixing of the rent to the rental value.

Payment disputes and termination

Payment disputes often involve termination clauses and non-performance exceptions. Article L145-41 imposes a one-month delay after an unsuccessful notice, a delay that the act must mention under penalty of nullity. Since the law of May 26, 2026, for requests for suspension introduced after its entry into force, the granting of delays and the suspension of the effects of the clause for non-payment of rent are in addition subject to the tenant's ability to settle the rental debt.

Legal requirements for delays

A clause providing for a shorter delay fails this public order text and must be deemed unwritten, including in leases concluded before the law of June 18, 2014, provided that the proceedings are ongoing. The Court of Cassation allows that the non-performance exception may suspend the payment of rent from the day the premises become unsuitable for their intended use, without requiring a prior notice.

Verification of exceptions

It has completed this solution by ruling that, when seized with a request to establish the acquisition of the termination clause, the judge must verify the validity of the exception invoked, regardless of whether the tenant has not requested payment delays within the month of the notice. The weapon remains demanding: the unsuitability of the premises must be characterized.

Monthly payment rights

The same law has made the monthly payment of rent a right, upon request by the tenant of a retail or wholesale or service premises with a commercial or artisanal character, subject to the absence of uncontested arrears (article L145-32-1, applicable to ongoing leases). For a tenant experiencing cash flow difficulties, it is an immediate lever, to be activated before arrears become established.

Charge justifications

The charges constitute another frequent source of tension. The Court of Cassation has specified that the lessor must send to the tenant requesting them the justifications for the charges, taxes, duties, and fees imputed to them, and cannot be satisfied with merely having them available.

Exit strategies and notice periods

Organizing the exit involves the right to notice at the end of each triennial period, exercised at least six months in advance. It may, however, be excluded by the lease for leases longer than nine years, single-use premises, premises exclusively for offices and certain storage premises.

Assignment of leases

Before any exit strategy, checking this clause and the schedule of deadlines is essential: a late notice postpones the exit by three years. The assignment of the lease with the business offers an alternative, often more profitable for the tenant. Clauses prohibiting the assignment of the lease to the buyer of the business are deemed unwritten (article L145-16), but the lessor retains the right to frame the operation through an approval clause or a form clause.

Guarantees and responsibilities

When the lease stipulates a guarantee from the assignor, it can only be invoked for three years following the assignment (article L145-16-2), and the lessor must inform the assignor of any payment default by the assignee within a one-month period (article L145-16-1). These rules must be integrated during the negotiation of the assignment deed, particularly when the solvency of the assignee is uncertain.

Return of guarantees

The law of May 26, 2026 has also framed the fate of guarantees at the end of the lease. The deposit guarantee must be returned within a reasonable time not exceeding three months from the handover of keys, after deduction of sums properly justified, and other guarantees within a six-month period with the corresponding releases (article L145-40). For commercial and artisanal premises, leases concluded or renewed since the enactment of the law also cap the entire guarantees at one quarter of the rent.

Friendly termination and evidence

Friendly termination remains often the most economical solution for both parties. The negotiation benefits from being conducted with knowledge of the power dynamics described above: a lessor whose indexing clause is fragile, or whose premises have documented disorders, is not in the same position as a lessor with an unblemished record.

Exit protocols and legal protections

The exit protocol must precisely address the fate of the deposit guarantee, the works for reinstatement, the current year's charges and any guarantees provided. Recent jurisprudence reinforces the tenant's position on several points: neutralization of non-reciprocal indexing clauses, sanctioning of abbreviated termination clauses, non-performance exception without prior notice, effective communication of charge justifications.

Balancing the system

The law of May 26, 2026 rebalances the system in the opposite direction on the payment delay field, now conditional, while opening the tenant to monthly payments and capping of guarantees. These weapons require, from both sides, a rigorous file. For each party, the audit of the lease and the gathering of evidence must precede any renegotiation or exit efforts.