Rent Cap for Tenants in Germany: Checklist

Rent & Rent Control 2 min read · published September 07, 2025

As a tenant in Germany, you should know the rent cap before agreeing to a rent increase. This rule limits how much rent can rise within a given period. This article provides a clear checklist with concrete steps, documents and deadlines you should check. We explain which records matter, how to request a written justification and when the local court (Amtsgericht) is responsible. The guidance is practical so that new tenants can recognize their rights and act purposefully.

What is the Rent Cap?

The rent cap restricts in Germany by what percentage a landlord may increase the rent within three years. Generally this limit is 20 %, and in tight housing markets 15 %. Legal foundations are found in the Civil Code (BGB), especially rules on rent increases.[1]

The rent cap protects tenants from rapid and large rent increases.

Checklist: Steps before a Rent Increase

  • Check the date of the last rent increase (time) to calculate the three-year period.
  • Gather all payment receipts, bank statements and rent receipts (rent).
  • Document the apartment condition with photos and handover records (evidence).
  • Request the rent increase in writing with justification and comparable rents (notice).
  • Note contacts, appointments and deadlines for communication with the landlord (call).
Early documentation makes objections and court steps easier.

What to do if the Limit is Exceeded?

If the planned increase appears to exceed the rent cap, respond in writing and within deadlines. Request a detailed justification and check whether the increase is within three years. If unclear, you may refuse consent and consider legal action. For court clarification the local court (Amtsgericht) is responsible; procedural rules are in the Code of Civil Procedure (ZPO).[2]

Always respond in writing and keep proof of all deadlines.

How-To

  1. Monitor deadlines: calculate the three-year period since the last rent increase (time).
  2. Request the written rent increase with justification and comparable rents (form).
  3. Collect evidence: secure payment receipts, photos and handover records (evidence).
  4. Check for advice: contact local legal advice or a lawyer and prepare documents for the local court (court).

Common Mistakes and How to Avoid Them

  • Not noting deadlines: missing a deadline can cost you rights.
  • Incomplete documentation: objections are hard to enforce without evidence.
  • Informal rejection: always submit objections in writing and with reasons.
Keep all letters and proofs for at least three years.

FAQ

1) What exactly does the rent cap limit?
The rent cap limits by percentage how much rent can be raised within a three-year period; regional variations may apply.
2) Can I object to a rent increase?
Yes. You can object in writing and request evidence; in disputes the local court is competent.
3) Which documents are important for proceedings?
Payment receipts, handover records, photos and written correspondence with the landlord are crucial.

Key Takeaways

  • Check deadlines and the three-year period immediately.
  • Secure all evidence and documents thoroughly.
  • Always request written justifications for rent increases.

Help and Support / Resources


  1. [1] Gesetze im Internet — BGB §558
  2. [2] Gesetze im Internet — Zivilprozessordnung (ZPO)
  3. [3] Bundesministerium der Justiz und für Verbraucherschutz (BMJ)
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.