Which index should we use for indexation in the Netherlands?

A published CBS price index (consumer or producer) is common; always fix the specific series and reference month to avoid ambiguity.

Can prices go down under an indexation clause?

Only if drafted symmetrically; many clauses allow upward adjustment only, so confirm the direction expressly.

Does indexation apply automatically or must a party invoke it?

It depends on the drafting. The clause should state explicitly whether the adjustment occurs automatically or requires written notice from the party entitled to invoke it.

What happens if the agreed index is discontinued?

Without a fallback the clause may be unworkable, creating a gap. Always include a replacement mechanism pointing to the successor index or an agreed alternative.

Is there a cap on how much prices can be raised per adjustment?

Only if the clause sets one. Buyers often negotiate an annual cap or a corridor; without it, the adjustment follows the index movement in full.

Price Indexation Clause

Adjusts contract prices over time against an objective index such as inflation, protecting margins in long deals.

Ce que c'est

A price indexation (or escalation) clause links agreed prices to a published index, typically a consumer or producer price index, so they rise (or fall) at set intervals. It removes the need to renegotiate every year in multi-year contracts.

Pourquoi c'est important

In long-term supply or service contracts, fixed prices erode margins when input costs rise. Indexation keeps pricing fair to both sides and predictable, reducing the risk of disputes or unilateral price hikes.

Comment l'appliquer

Name a specific, published index (e.g. CBS CPI) and the exact reference month.
State the adjustment frequency and a clear formula for calculating the new price.
Decide whether indexation is automatic or requires written notice.
Add a fallback if the chosen index is discontinued or replaced.

Conseils de négociation

• Buyers can cap annual increases or split the index movement between the parties.
• Sellers should ensure the clause permits upward, not just downward, adjustment.

Pièges courants

• Referencing an index that is later renamed or discontinued with no fallback.
• In consumer contracts, an opaque escalation clause may be unreasonably onerous.

Références juridiques

Sauf mention contraire, les références renvoient au droit néerlandais (Burgerlijk Wetboek, le Code civil néerlandais) ; les instruments de l'UE tels que le RGPD s'appliquent dans toute l'UE. Il s'agit d'informations générales, pas de conseils juridiques. D'autres juridictions traitent ces concepts différemment. Vérifiez le texte en vigueur et votre situation avec un avocat qualifié.

Foire aux questions

Questions courantes sur cette clause.