Challenge Rent Increase: Template Austria

Tenant rights & basic protections (MRG) 2 min read · published September 10, 2025
As a tenant in Austria, an unexpected rent increase can be unsettling. This guide explains in clear steps how to review a rent increase under the Mietrechtsgesetz (MRG)[1], formally contest it, and protect your rights vis-à-vis the landlord. You will find a practical sample letter, notes on deadlines, and tips for securing evidence and the correct conduct in court. The language is deliberately simple so non-lawyers can understand which documents are important, when an increase is legally permissible, and what options exist for unlawful demands. By the end you will know how to respond correctly and which authorities or courts in Austria have jurisdiction.

What to do about a rent increase?

First check the landlord's written justification and compare the requested amount with your lease and the MRG. Note deadlines and prepare the necessary documents before responding. A calm, documented reply increases your chances to have the increase withdrawn or reduced.

Important documents

  • Lease agreement and any addenda.
  • Correspondence with the landlord, including formal notices.
  • Payment records, bank statements and rent receipts.
  • Photos, logs and other evidence of defects.
Keep all payment receipts and correspondence stored safely.

How to check legality

Check whether the increase is justified in writing, whether contractual or legal limits are exceeded and whether deadlines were observed. If unclear, you can set a deadline for correction and, if necessary, bring the matter to court; usually the district court has jurisdiction[2]. Court notices or filings can be prepared via JustizOnline[3].

Respond within deadlines, otherwise you may lose rights.

Further steps

  • Send a formal letter or sample template by registered mail.
  • Set a clear deadline for a reply or withdrawal of the increase.
  • If necessary, file a claim at the competent court.
Detailed documentation increases your chances in disputes.

FAQ

What is the Mietrechtsgesetz (MRG)?
The MRG governs tenant and landlord rights and obligations for many residential tenancies in Austria.
How long do I have to respond to an increase?
Check the justification and submit a written response within the stated or a reasonable deadline.
Do I need a lawyer to contest it?
Not always; however, legal advice can be helpful in complex cases or if court action is likely.

How-To

  1. Check deadlines and the formal justification for the increase.
  2. Collect documents, receipts and photos as evidence.
  3. Send the sample letter by registered mail and document dispatch.
  4. Consider filing at the district court if the landlord does not respond.

Key takeaways

  • Use a written sample letter for clear communication.
  • Strictly observe deadlines to preserve your rights.
  • Systematically secure evidence to be better prepared.

Help and Support


  1. [1] RIS - Mietrechtsgesetz (MRG)
  2. [2] Justice - Information on Courts
  3. [3] JustizOnline - Electronic Forms
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Austria

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