trend.: OGH: U-turn on indexation clauses in lease agreements

trend.: OGH: U-turn on indexation clauses in lease agreements

18. August 2025

The Austrian Supreme Court (OGH) has changed its case law on indexation clauses in lease agreements, providing important clarification for landlords.

In his guest commentary on trend.at, our partner Dr. Christian Nordberg, LL.M. analyzes the decision and its practical implications:

• Indexation clauses are valid even if they do not explicitly exclude a rent adjustment during the first two months (§ 6 para 2 no 4 KSchG).
• If the tenant pays the indexed rent without objection for one year, this constitutes implied consent to the agreed base index.
• The ruling provides greater legal certainty for landlords and clearer guidance for contract drafting.

The full guest commentary is available here (Germany only)
trend.at/immobilien/ogh-kehrtwende-zu-indexklauseln-in-mietvertraegen