Recovering an unpaid B2B invoice in Belgium starts with a formal demand letter, then moves to a simplified court procedure for undisputed debts or an ordinary claim before the commercial court if the debtor contests. Enforcement follows judgment, not before.
This sequence fits a straightforward commercial situation: a Belgian company or a company trading with a Belgian counterpart, an invoice for goods or services actually delivered, and a debtor who has simply stopped paying rather than disputing the underlying contract. The claim is commercial, not consumer, and the debtor is a registered business, not a private individual buying for personal use.
It does not fit every file. If the debtor formally disputes the quality of the goods, the scope of the service, or the existence of the contract, the case moves to ordinary litigation on the merits, which is a different exercise with different economics. If the debtor is already in a formal insolvency procedure, the demand letter becomes a proof of claim filed with the receiver rather than a lever for payment. And if the same debtor is also failing to pay other creditors abroad, that pattern changes the calculation: an asset already seized by a faster creditor in another country is an asset you will not reach, a risk explored in how a creditor recovers an unpaid B2B invoice from a Dutch debtor for the adjacent market many Belgian-facing files also touch.
Each stage below assumes the previous one has failed to produce payment. Skipping a stage rarely saves time, because a Belgian court expects to see that the debtor was given a real chance to pay before litigation began.
Two variables decide almost everything: whether the debtor contests, and whether the debtor still has assets by the time a bailiff acts. A debtor who ignores the demand letter and then ignores the summons produces a fast, cheap default judgment. A debtor who fights every step, or who moves assets while the case is pending, turns the same claim into a longer and costlier exercise – and that is before enforcement even begins.
Translation is a real but underrated cost driver. Belgium runs three official languages across its regions, and a contract or invoice drafted only in English may need translation before a Dutch-speaking or French-speaking court will accept it without friction. Court fees, bailiff fees and any representation costs scale with the length of the dispute rather than with the size of the invoice, which is why a small contested claim can cost proportionally more to pursue than a larger uncontested one.
For a cross-border claim within the EU where the debtor's registered address is outside Belgium but the debt is otherwise straightforward, the European order for payment procedure under Regulation (EC) 1896/2006 offers a parallel route worth comparing before committing to Belgian domestic proceedings, since it was built precisely for this kind of undisputed cross-border commercial debt.
After the formal demand letter produces nothing, the creditor faces the actual decision: file, or write the debt off. That decision should rest on three things, checked in order. First, is the debt genuinely undisputed, or will the debtor manufacture an objection once summoned – because a manufactured dispute changes the procedure and the cost. Second, does the debtor still operate, still invoice, still hold a bank account under its own name – a dormant shell is a judgment against nothing. Third, is the amount owed large enough to absorb court fees, bailiff fees and the time a commercial court takes to rule, without the recovery becoming a net loss once those are subtracted.
Where all three answer favourably, filing is the rational next step, and that is exactly the point at which a structured Belgian recovery process for unpaid B2B invoices takes over the practical work: preparing the file, choosing the right procedure, and instructing counsel admitted to practise before the relevant Belgian court.
Three situations make continuing more expensive than the debt itself. First, the debtor has entered a formal insolvency procedure and unsecured claims sit far behind secured creditors, tax authorities and employees – a judgment adds nothing a proof of claim in the insolvency file would not already secure. Second, the debtor has no traceable assets, no active bank account and no ongoing trading activity, so a favourable judgment simply cannot be enforced against anything real. Third, the debtor genuinely disputes the underlying contract on grounds that are not obviously weak, meaning the file has become litigation on the merits rather than debt recovery, with a cost and time profile that changes the entire calculation.
In any of these three cases, the honest answer is to stop spending on the file, or to redirect the spend toward a cheaper mechanism – a settlement offer, a payment plan, or simply booking the loss – rather than toward a judgment that will not convert into cash.
Yes, if the demand letter alone produces payment or a workable payment plan. Most files that end without a hearing end that way because the debtor had no real objection and preferred to settle rather than face a public judgment.
The creditor moves to court, choosing the simplified uncontested procedure if the debt is clean or an ordinary summons if any dispute exists. Silence at the demand-letter stage usually, though not always, predicts silence at the summons stage too, which tends to produce a faster default judgment.
It depends on the region and on whether the debtor's counsel objects. A Dutch-speaking or French-speaking court can require a certified translation before accepting foreign-language evidence, which adds a cost and a delay worth planning for early rather than discovering mid-case.
The pattern that costs creditors the most is not the unpaid invoice itself – it is the gap between the demand letter going unanswered and the decision to file, a gap in which a debtor with other creditors abroad often sells or moves what could have been seized. Waiting to see what happens rarely helps; it usually just means someone else reached the assets first.