Rent revision calculator with the IRL
Enter the current rent and the lease’s reference quarter: the new rent is calculated with official INSEE indices.
Get a reminder on the lease anniversary with the new index.
Rent revision formula
New rent = current rent × IRL of the reference quarter ÷ IRL of the same quarter a year earlier
Example: €750 rent revised in November 2026 with the Q3 2026 IRL (148.06) against Q3 2025 (145.77) becomes 750 × 148.06 ÷ 145.77 = €761.78.
Latest IRL values (mainland France)
| Quarter | IRL | Year-on-year |
|---|---|---|
| Q3 2026 | 148.06 | +1.57 % |
| Q2 2026 | 148.37 | +1.15 % |
| Q1 2026 | 146.60 | +0.78 % |
| Q4 2025 | 145.78 | +0.79 % |
| Q3 2025 | 145.77 | +0.87 % |
| Q2 2025 | 146.68 | +1.04 % |
| Q1 2025 | 145.47 | +1.40 % |
| Q4 2024 | 144.64 | +1.82 % |
Next INSEE release: 15 January 2027 (Q4 2026).
Frequently asked questions
How is the IRL rent revision calculated?
New rent = current rent × IRL of the reference quarter ÷ IRL of the same quarter one year earlier. The reference quarter is the one in the lease; otherwise the last index published when the lease was signed.
When can rent be revised?
Once a year, on the date in the lease or otherwise its anniversary, if the lease has a revision clause. The landlord has one year to ask for it; it is not retroactive.
Can rent be revised for homes rated F or G?
No. In mainland France, since 24 August 2022, rent for homes rated F or G on the energy performance certificate (DPE) can no longer be revised or increased. Check the rules for your territory.
Where is the official IRL published?
INSEE publishes the IRL every quarter. The values used here come from the INSEE release of 15 October 2026 (Q3 2026 IRL: 148.06).
What if your receipts sent themselves?
Quittance Pro handles it every month: a reminder on rent day, a pre-filled receipt, sent to the tenant in one tap.
Free
- Rent receipt and partial receipt as PDF
- Rent due notice
- IRL rent revision calculator
- No sign-up
Quittance Pro
- Automatic reminder on rent day
- Pre-filled receipt sent in one tap
- Payment tracking: who paid, who is late
- Due notice sent before each due date
- Yearly IRL revision with a letter to the tenant
- Archive of all documents, several properties