Interest Owed on the Difference

Application pratique:

Under this ruling, interest on the rent difference runs from the date you requested the new rent determination (1 March 2022), not from the court's decision. You should calculate statutory interest on the arrears from that date and demand payment from your tenant. If they refuse, you can rely on this case law to claim interest in court, which could amount to several hundred euros depending on the period and applicable rates.

Application pratique:

This decision means interest is owed from the request date (15 January 2021), not June 2023. Even if the landlord hasn't demanded it yet, you should budget for roughly two and a half years' interest on the arrears to avoid a financial shock. Check the exact amount using the statutory interest rate; if the landlord later claims it, you won't be caught off guard. Proactive settlement discussions could also limit costs.

Application pratique:

The Court of Cassation clarifies that interest runs from the date you made the request (10 October 2020). When invoicing the tenant, add interest calculated from that date to the principal sum, using the applicable statutory rates. This ensures the owner isn't deprived of income due to procedural delays. Keep detailed records of the request date and all correspondence, as these will be essential if you need to enforce the claim.