The Reference Rental Index (IRL) is published quarterly by INSEE. It allows landlords to revise rents once a year according to inflation. Use our calculator to know the exact amount of your rent increase.
Indicate the monthly rent amount currently paid.
Choose the IRL from your lease or the last revision (usually indicated in the contract).
Choose the most recent IRL published by INSEE for the revision quarter.
The calculator displays the new rent amount, the increase in euros and percentage, as well as the annual impact.
The results provided by this calculator are for informational purposes only and do not constitute investment advice, a credit offer, or a recommendation to buy or sell. The amounts displayed are estimates based on the data entered and current tax schedules. For an accurate calculation tailored to your personal situation, consult a qualified professional (notary, banker, tax advisor, accountant).
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Residential leases only
This calculator uses the IRL (Rent Reference Index) applicable to residential leases. For commercial leases, use the ILC (Commercial Rent Index) or ILAT (Tertiary Activities Rent Index).
Fill in your lease details below to calculate the revised rent
Date the lease was signed (for IRL auto-detection)
Date you are making the request (default: today)
Amount excluding charges
Allows verification of rent control zones and reference rents
To check rent control zone
To check reference rent
Only in rent-controlled areas. Not revised by the IRL.
For an accurate annual revision, indicate the last revision performed
A revision clause must be included in your lease to be able to revise the rent.
The revision can only take place once a year, on the date specified in the lease (anniversary date).
The IRL of the lease reference quarter and the latest published IRL at the time of revision are used.
Revising the rent of a property rated F or G on the DPE
No catch-up of past revisions
If you have not revised the rent for several years, intermediate year revisions are permanently lost and cannot be recovered.
The revision applies only from the request date, not retroactively.
💡 Example:
Lease signed in 2020, revision request in 2025 → The increase applies from 2025, but you cannot claim rent differences from 2021 to 2024.
Rent revision can only occur once a year, on the date specified in the lease (usually the anniversary date). A revision clause must be included in the lease.
Use the IRL of the reference quarter indicated in the lease (usually the quarter of the signing month) and the latest IRL published by INSEE at the time of revision. The IRL must be officially published to be applicable.
The IRL (Rent Reference Index) applies to residential leases. The ILC (Commercial Rent Index) applies to commercial leases. The ILAT (Tertiary Activities Rent Index) applies to professional leases (offices). This calculator only handles the IRL (residential).
No, since August 24, 2022 in mainland France, and since July 1, 2024 in overseas territories, it is forbidden to revise rent for F or G rated properties. Since January 2025, G-rated properties can no longer be rented out. F-rated will follow in 2028, and E-rated in 2034.
No. The "bouclier loyer" that capped IRL increases at 3.5% in mainland France ended definitively on March 31, 2024. Since Q2 2024, the IRL applies without any cap. In practice, current IRL variations (around 1%) are well below the former cap.
Yes, the IRL can decrease. If your lease contains a revision clause, it generally applies in both directions (increase and decrease). Case law tends to consider the clause applies automatically, but check the exact wording of your lease.
Without a revision clause, the rent remains fixed for the entire contract duration. The landlord cannot impose a revision. A clause can be added when renewing the lease with tenant's agreement.
In rent-controlled areas (Paris, Lyon, Lille, etc.), landlords can apply a rent supplement for exceptional characteristics (view, terrace, etc.). This supplement is NOT subject to IRL revision — only the base rent is revised annually.
The landlord must notify the tenant in writing: registered letter with acknowledgment of receipt, bailiff notice, or hand delivery with signed receipt. A simple email, SMS, or regular mail has no legal value.
Since the ALUR law (2014), the landlord has one year from the anniversary date to request the revision. If they act within this period but late, the increase only applies from the request date (not retroactively). After 1 year, the revision is permanently lost.
The tenant can contest by contacting the free departmental conciliation commission (CDC), then possibly the court. They have a 3-year limitation period to claim overpayments (Article 7-1 of the law of July 6, 1989).
The "bouclier loyer" (3.5% cap) ended in March 2024. However, rent control remains in effect in certain cities (Paris, Lyon, Lille, Montpellier, Bordeaux, etc.) and has been extended until July 31, 2026. In these areas, the base rent cannot exceed the increased reference rent set by the prefecture.