Who pays to challenge a rent increase in France?

Rent setting, control & indexation (IRL) 2 min read · published September 11, 2025
If you are a tenant in France and your landlord announces a rent increase, it is natural to wonder who pays the costs to challenge it. This guide explains, step by step and in plain language, what procedures to take, which supporting documents to gather, and when to contact the departmental conciliation commission or the judicial court. We detail possible costs (bailiff fees, lawyer fees, expert reports) and possible aids or exemptions depending on your situation. The aim is to help you assess the financial risk before acting and to know the free or low-cost options to defend your rental rights truly.

What does it cost to challenge a rent increase?

Challenging an increase can generate direct and indirect costs. Direct costs include bailiff fees, registered mail, technical expertise, or legal assistance fees. In some cases, the court may order the losing party to reimburse some or all procedural costs.[1]

Respond to notifications within deadlines to preserve your rights.

Possible costs

  • Bailiff fees to serve documents or make an official statement.
  • Lawyer fees if you opt for representation or specialized advice.
  • Cost of a technical expert report (insulation, heating, surface measurement) when the increase is based on works or contested surface.
  • Travel costs and time spent, often underestimated by tenants.

Who bears the costs?

By default, each party bears its own costs. A tenant who starts a challenge pays the costs they advance. However, if the judge finds the challenge well-founded, they may order the landlord to reimburse certain costs or pay the legal expenses. Conversely, the tenant may be ordered to pay amounts if the challenge is deemed abusive. For simple disputes, the departmental conciliation commission (CDC) provides a low-cost or free route to seek an amicable resolution.[2]

Documenting the increase and your payments improves your chances in disputes.

FAQ

Can a tenant refuse a rent increase?
Yes, you can contest an increase if it is not provided for in the lease, if local rent control is exceeded, or if the rise is not justified by agreed works.
Should I pay the increase while I challenge it?
It is advisable to continue paying the usual rent or the uncontested portion to avoid arrears; inform in writing that you contest the increase and keep proof.
Is the conciliation commission free?
Yes, the CDC generally offers free mediation for housing disputes at no cost to the tenant.

How to

  1. First contact the landlord to request supporting documents and try an amicable solution.
  2. Gather all evidence: lease, receipts, letters, photos, quotes or invoices.
  3. Submit the case to the Departmental Conciliation Commission if discussions fail.
  4. If conciliation fails, prepare a file and bring the case to the judicial court to resolve the dispute.

Key takeaways

  • Keep a complete record of payments and communications.
  • Respect deadlines to file with the CDC or the court to avoid losing rights.
  • The CDC route is often free and faster.

Help and resources


  1. [1] Légifrance : Law n° 89-462 of July 6, 1989
  2. [2] Service-public.fr : Lease contract and forms
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights France

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.