Rent Reduction Template for Tenants in Austria

Rent & increases (reference rent, categories, form) 2 min read · published September 10, 2025

What is a rent reduction?

A rent reduction means tenants cut the agreed rent partially or entirely because a defect reduces the usability of the apartment. Typical cases are missing heating, significant mould infestation or major water damage. A reduction does not replace remedying the defect but is an economic response to reduced usability.

There are clear rules in Austria about the usability of a dwelling.

When can tenants reduce rent?

In principle a reduction is possible if the defect is not insignificant and use is materially impaired. Minor cosmetic defects usually do not justify a reduction.

  • Missing or failed heating in winter
  • Mould infestation in living or sleeping rooms
  • Water ingress or leaking pipes
  • Serious defects in sanitary or electrical installations
Respond in writing and set a deadline before reducing the rent.

Sample letter: structure and wording

An effective letter should state clearly: 1) the exact defect, 2) date of discovery, 3) a concrete request for remedy, 4) a reasonable deadline and 5) notice of rent reduction if no remedy. Also indicate which reduction you consider appropriate or state you will calculate the amount later.

Short example: "I hereby notify you that mould appeared in the bedroom on [date]. Please remedy the defect by [date]. Until remedy, I reserve the right to a reasonable rent reduction."

Keep copies of all letters and proof of delivery.

How-To

  1. Document the defect in writing and with photos.
  2. Inform the landlord by letter and set a deadline.
  3. After the deadline either reduce the rent or consider legal steps.
  4. Seek advice if necessary and consider filing at the district court.
Detailed photos and dates strengthen your claim.

FAQ

How should I document defects best?
Photograph damage with dates, note consequences, witnesses or communication and keep all evidence.
Can the landlord reject the reduction?
The landlord can object; then a professional assessment or legal advice helps, possibly with a court case at the district court.[2]
Should I deposit the reduced rent?
In some cases it is sensible to set the reduced amounts aside and not spend them until the legal situation is clear.

Help and Support / Resources


  1. [1] RIS - Mietrechtsgesetz (MRG)
  2. [2] JustizOnline - Forms and e-Services
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.