The legal starting point
Force majeure concerns an inability to perform not attributable to the debtor under the applicable law and contract. Higher cost alone does not establish it. Consequences depend notably on whether the obstacle is temporary or permanent. Notify the other party and document mitigation steps.
Documents to gather
The contract, invoices, payment evidence and received letters with envelopes. Separate admitted and disputed amounts.
Your next step
Write a short timeline and state the outcome you seek. Request a written explanation if an amount or decision seems wrong. Before signing, acknowledging a debt or allowing a deadline to pass, check the consequences for your circumstances. An amicable step does not automatically suspend a statutory deadline.
Frequently asked questions
Is a guide enough to decide?
It helps prepare your next step. Dates, documents and specific rules can change the answer. Consult the sources below and have decisive issues assessed.
Sources and useful texts
Sources consulted on 27 September 2026
General information about Belgian law. Region, date of events and your circumstances can change the applicable rule.
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