Enforcing Rent Cap for Tenants in Germany

Rent & Rent Control 3 min read · published September 07, 2025
Many tenants in Germany face high rents or later increases. This guide explains step by step how to check the rent cap, understand legal basics and enforce claims against the landlord. You will receive clear guidance on deadlines, evidence and template texts for letters to landlords as well as practical examples of how to check an excessively high rent and claim a refund. The aim is that you, as a tenant, know when a restriction applies, what evidence is required and which authority you can reasonably turn to, such as the local court or advisory centers. Read on to learn concrete steps and official forms. We explain forms and deadlines in a practical way.

What is the Rent Cap?

The rent cap limits rents for new rentals in many regions and is intended to prevent excessive rents. The legal foundations for tenancy law can be found in the Civil Code (BGB).[1]

In many regions there are upper limits for new rentals.

How to proceed: Step by step

The following steps help you, as a tenant, to check the rent cap and to enforce it if necessary.

  • Read the lease carefully and note the start date as well as graduated or index rents.
  • Determine the comparable rent (e.g. same location, size and amenities).
  • Collect evidence and correspondence, such as handover records, notices or photos of defects.
  • Ask the landlord in writing to disclose how the rent was calculated (use a template letter).
Organize evidence and correspondence carefully; this makes later steps easier.

Forms and templates

Two official routes are relevant for formal steps:

  • Application for issuance of a payment order (Mahnbescheid) (for outstanding payments) — file the application at the competent local court; example: if the landlord refuses refunds, use the payment order to officially register a payment claim.
  • Filing a lawsuit at the local court (lawsuit form) — if the landlord does not cooperate, file a lawsuit with evidence; example: you demand a refund of overpaid rent and submit comparable values and payment records.

The competent courts are usually the local courts; procedural rules can be found in the ZPO.[2] Appeals and precedent decisions can reach the Federal Court of Justice.[3] Official forms and information are available from the courts and the justice portal of the federal government or your federal state: Justice Portal.

Respond within legal deadlines, otherwise claims may lapse.

FAQ

Can I reclaim rent I paid in excess?
Yes, in some cases you can reclaim overpaid amounts if the rent cap applies and you can provide evidence.
Who should I contact first in a dispute?
First try to reach a written agreement with the landlord; if the conflict continues, tenancy courts or advisory centers can help.

How-To

  1. Check the lease and note the rent and contract start date.
  2. Determine a comparable local rent.
  3. Write a formal letter to the landlord (template) and request disclosure or reimbursement.
  4. If necessary, initiate a payment order or legal action and present all evidence.

Key Takeaways

  • Documentation and deadlines often determine success.
  • Local courts are the competent first instance for rental disputes.

Help and Support / Resources


  1. [1] Civil Code (BGB) — gesetze-im-internet.de
  2. [2] Code of Civil Procedure (ZPO) — gesetze-im-internet.de
  3. [3] Federal Court of Justice (BGH) — bundesgerichtshof.de
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Germany

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