Indexatieclausule
Last updated: 2026-07-22
An indexatieclausule is a contract clause that allows the rent to be increased periodically, often by reference to an inflation index.
Statutory annual increase caps (range, not a single number): social 4.1% (from Jul 2026), mid 6.1% (from Jan 2026), liberalised 4.4% ceiling (from Jan 2026, temporary until May 2029). CPI+markup clauses in liberalised contracts remain contested case law.
Source: Statutory annual rent-increase caps by segment (social from Jul 2026; mid and liberalised from Jan 2026); CPI+markup case law remains unsettled. Verified 2026-08-11.
Related guide: Rental Contract Check (Netherlands): What to Look For