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Deadlines and proceedings
Calculate a contractual penalty
Enter the base and percentage from your contract. There is no automatic 10% rate. This does not assess validity, need for a default notice or judicial reduction.
When does this calculation apply?
A result does not by itself establish entitlement. Check the conditions, your documents and any different agreements. Seek timely legal help if a deadline is running.
Calculation and assumptions
P × r/100
Official sources
Burgerlijk Wetboek 6:91–94 ↗Checked on 16 September 2026
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