Netherlands Rent Increase Rules: Limits, Procedures, and the WWS System

The Netherlands has an extensive rent regulation system with different rules for social housing, mid-range housing, and the free sector. The Affordable Rent Act (Wet betaalbare huur), fully implemented in 2026, ensures that properties up to 186 WWS points are rent-controlled.

The Housing Valuation System (WWS)

The WWS is a point-based system that determines segments based on surface area, energy label, and WOZ value. As of 2026, if a property has 186 points or fewer, it must adhere to the maximum rent set by the government.

Housing Segments (2026)

Rules by Segment

Social Housing

• Maximum rent determined by WWS point total.
• Annual increase maximum 4.1% (effective July 1, 2026).
• Additional income-dependent increases may apply for high-earning households in social units.

Mid-Range Housing (Middenhuur)

• Covers properties between 144 and 186 points.
• Maximum increase of 6.1% (Wage Growth + 1%).
• Landlords must provide the WWS point calculation with new contracts.

Free Sector (Private Sector)

• No maximum starting rent.
• Annual increase limited to 4.4% (CPI inflation + 1%) as of January 1, 2026.
• Landlord must provide the WWS point calculation so the tenant can verify the property is truly "liberalized" (187+ points).

Rent Increase Procedure

Annual Increase

1. Written proposal: Must be sent at least 2 months before the effective date (typically by May 1 for a July 1 increase).
2. Statement of percentage: Must specify the percentage and the new total rent.
3. Right to object: Tenants can object if the increase exceeds the legal cap or the WWS maximum.

If the Tenant Objects

Tenants in social and mid-market segments can engage the Rent Tribunal (Huurcommissie) for independent adjudication. In the free sector, disputes generally go to the subdistrict court.