How are contractual penalties enforced under Dutch law?

Dutch term: Handhaving boetebedingen | Legal basis: Articles 6:91-6:94 BW

Under Dutch law, a contractual penalty (boetebeding) becomes payable automatically upon the occurrence of the specified breach, without the need for a court judgment (unless the contract provides otherwise). The creditor can claim the penalty by sending a demand and, if the debtor does not pay, by initiating court proceedings or summary proceedings (kort geding) to obtain a payment order.

The debtor's main defence is the court's power to moderate (matigen) the penalty under article 6:94 BW if the stipulated amount is manifestly excessive in the circumstances. Dutch courts exercise this power regularly, particularly where the penalty bears no reasonable relationship to the actual damage suffered. The court considers the nature and purpose of the penalty, the actual damage, the circumstances of the breach and the financial position of the parties.

Why it matters for international businesses

For international businesses, drafting penalty clauses that are proportionate and clearly tied to a legitimate commercial interest (deterrence, damage compensation, compliance incentive) gives the best chance of full enforcement without moderation. MAAK Advocaten advises on drafting and enforcing penalty clauses under Dutch law.