Quarterly IRL Deadlines for Tenants in France

As a tenant in France, it is essential to understand the legal deadlines related to the calculation and application of the Rent Reference Index (IRL). This article explains, in clear language, when the landlord can revise the rent, which deadlines must be respected to notify the tenant, and how to check the quarterly IRL calculation. You will find practical steps to verify dates, prepare evidence and dispute an increase if necessary. The aim is to give you concrete benchmarks to avoid procedural errors and protect your rights without unnecessary legal jargon. We also recall possible remedies, including the Departmental Conciliation Commission and the Judicial Court, and the official documents to consult.

Calculation and periodicity of the IRL

The IRL is an index published by INSEE and updated quarterly; it serves as the basis for rent adjustments when the lease contains a revision clause. The lease must specify the periodicity and the revision date (for example "each year on the anniversary date").^[1]

• The INSEE publication fixes the quarter's IRL and is used for the calculation.
• The revision clause indicates the date when the revision takes effect.
• The landlord must formalize the rent increase notification to the tenant according to the contract.

How to check the calculation

To verify a quarterly revision you must: check the lease clause, find the INSEE index for the relevant quarter, apply the formula provided (often proportional) and verify the effective date. If the clause is missing, the revision is not applicable.

• Check the revision clause in your lease agreement.
• Consult the INSEE index for the relevant quarter and compute the new rent.
• Apply the formula indicated and compare it with the new amount requested.
• Ask the landlord for written notification and supporting documents if needed.

FAQ

When can the IRL be applied to the rent?

The IRL can be applied only if your contract contains a revision clause and according to the periodicity indicated in that contract.

What is the deadline to dispute a revision?

There is no single deadline; dispute promptly in writing, keep records of exchanges and, if necessary, refer to the Departmental Conciliation Commission then the Judicial Court.

Where to check the index used?

Check the official INSEE publication and request from the landlord the precise quarter reference used.

How to

1. Read the lease's revision clause to know the periodicity and calculation method.
2. Verify the INSEE index for the chosen quarter and calculate the new rent using the contract formula.
3. Request supporting documents and written notification from the landlord.
4. If you dispute, contact the Departmental Conciliation Commission and then the Judicial Court if needed.

Help and Support

• Service-public.fr — Official housing information
• Legifrance.gouv.fr — Legislative and regulatory texts
• Service-public.fr — Procedures and letter templates

1. [1] Legifrance — Official texts and codes
2. [2] Service-public.fr — Practical information for tenants