Tenant Rights: Challenge Rent Increase in Austria

Tenant rights & basic protections (MRG) 2 min read · published September 10, 2025

What you need to know

As a tenant in Austria you are protected under the Mietrechtsgesetz (MRG)[1]. A rent increase is not automatically valid: formal errors, missing justification or incorrect calculations can justify contesting it. Here you can read which steps make sense, which deadlines apply and which evidence helps.

Reasons to contest

  • Deadlines were not observed or properly announced.
  • Errors in the calculation of the new rent or hidden costs.
  • Formal errors in service or missing written justification.
  • The increase appears clearly excessive compared to the local market.
In many cases the MRG protects tenants from arbitrary rent increases.

Important deadlines

You must respond within short deadlines: check the notice immediately and note the date of receipt. Deadlines for objections or filing a lawsuit depend on the ZPO and court rules[2]. Missing deadlines can weaken your rights.

Respond within statutory deadlines, otherwise you may lose rights.

Gather evidence

  • Collect lease agreements, previous bills, correspondence and receipts.
  • Document defects or needed repairs that may affect the rent.
  • Record dates, witnesses and all formal services.
Keep all receipts, photos and messages organized.

If negotiations fail

If no agreement can be reached, often the route to the district court is necessary. There judges decide whether the increase is justified or must be revoked. Information on court procedures and terminations can be found on JustizOnline[3].

Court proceedings can take time and incur costs; plan accordingly.

FAQ

How long do I have to act against a rent increase?
Check the date you received the notice and act quickly. Specific deadlines depend on the case; consult the court or an advisory service promptly.
Can I stop the increase completely?
Yes, if you can prove formal or substantive errors. Often a settlement is possible; otherwise the court decides.
Do I need a lawyer?
In complex cases legal support is advisable; for simple formal errors a written objection is often sufficient.

How-To

  1. Check the delivery date immediately and applicable legal deadlines.
  2. Gather all relevant documents and photos as evidence.
  3. Draft a written objection and send it to the landlord with proof of delivery.
  4. If necessary, file a lawsuit at the district court.
  5. Seek advice from tenant organizations or legal advisors.

Help and Support


  1. [1] RIS - Mietrechtsgesetz (MRG)
  2. [2] Justiz.gv.at - Court procedures and deadlines
  3. [3] JustizOnline - 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.