Rent Reduction: Documents for Tenants in Austria

Many tenants in Austria wonder which documents they must gather when their apartment has defects and a rent reduction may be appropriate. This article explains in plain language which proofs are useful, how to observe deadlines and which steps are common so your case stands a better chance. It is aimed at tenants without legal training and provides practical checklists, documentation tips and guidance on judicial options. The goal is for you as a tenant to understand which records matter most and how to store them safely before notifying the landlord of a reduction or considering legal action.

Which documents tenants need

Keep a complete collection so you can prove the impairment. Important documents and proofs include:

• Copy of the lease and current payment receipts for rent and deposit.
• Photos and videos of defects with date and a short description.
• Written correspondence with the landlord, emails and handover receipts.
• Repair reports, tradesmen invoices or expert opinions.
• Proofs of impairment (medical certificates for health hazards, measurement logs).

How to collect and secure evidence

Collect evidence systematically: dated photos, clear descriptions and witness details. Keep both digital and physical copies and maintain a log with dates and observed effects on apartment use.

1. Photo documentation: multiple shots from different angles with date.
2. Correspondence: send defect notices by registered mail or email and keep receipts.
3. If necessary, commission an expert opinion and secure the report.
4. Witnesses: note names and contact details of neighbors or guests.

Formal process and deadlines

Inform the landlord in writing about the defect and set a reasonable deadline for remedy. Mention that you may claim a rent reduction. Legal bases can arise from the Mietrechtsgesetz (MRG)^[1] and general civil rules; in disputes the district court is often competent^[2]. Try to seek dialogue first, document every step and check deadlines carefully.

For questions about rent or increases, information on Rent & Increases may be relevant.

FAQ

Which documents are usually sufficient?

Photos, the lease, payment receipts, written defect notices and possibly an expert opinion are the main proofs.

Can I reduce the rent immediately?

Unilateral reduction without formal notice is risky; inform the landlord in writing first and document the defect.

What if the landlord does not respond?

Then you can have the matter decided in court or contact an advisory service; ultimately the district court is competent^[2].

How-To

1. Collect photos immediately and note date and time.
2. Send a written defect notice to the landlord with a deadline for remedy.
3. If necessary, have an independent expert report prepared.
4. Keep all receipts for expenses and reduced rent amounts.
5. If the landlord does not respond, inform a conciliation body or the district court.

Help and Support

• [1] RIS – Legal Information System of the Republic of Austria
• [2] Justiz.gv.at – Information on Courts
• [3] JustizOnline – Forms and e‑Services

1. [1] RIS – Mietrechtsgesetz (MRG)
2. [2] Justiz.gv.at – District courts and competence
3. [3] JustizOnline – Court forms