IRL Rent Index API — Automate French Rent Revisions

Automate annual rent revisions in France using the INSEE IRL (Indice de Référence des Loyers) via API. Real-time quarterly updates, rent-cap validation, audit trail.

Automate IRL revisions

+3.5%

IRL Q3 2024 annual variation (INSEE)

4×/yr

Quarterly IRL publications by INSEE

BDM

Banque de Données Macroéconomiques — official INSEE source

Auto

Automatic rent revision calculation — no manual formula

How the IRL revision API works

POST /leases/{id}/rent-revision

// Request:
{ "revision_date": "2025-10-01" }

// Response:
{
  "previous_rent": 850.00,
  "new_rent": 879.75,
  "irl_reference": 143.52,
  "irl_current": 148.52,
  "variation_pct": 3.48,
  "effective_date": "2025-11-01",
  "legal_reference": "IRL T2 2025 — INSEE BDM série 001762099"
}

What happens if I miss the IRL revision window?

Right to revise is lost. Webhook lease.irl_revision.due fires 30 days before the deadline.

What is the IRL (Indice de Référence des Loyers)?

The IRL is a quarterly index published by INSEE used to calculate legal rent increases for residential leases in France. Using it is mandatory for annual rent revisions under Loi Alur.

How quickly is the API updated after a new IRL is published?

Within hours of the official INSEE publication. We monitor the BDM API and update our indices automatically.

Zero-effort IRL rent revisions

INSEE BDM real-time, rent cap validation, full audit trail.

Get your free API key

Documentation