Debt collection in B2B business: how to classify default interest and the €40 flat fee correctly

The starting point is default. Under section 286 of the German Civil Code it arises through a reminder, but at the latest 30 days after the due date and receipt of the invoice; against consumers only if the invoice pointed out that consequence.

This overview does not replace legal advice in the individual case. It does show which points should be settled before any escalation. It also matters to agree clearly who keeps contact with the debtor once the file has been passed on. What is prepared properly at this stage shortens every subsequent step.

What needs checking is the conclusion of the contract, the service rendered, a proper invoice and the payment term. Only when this chain is unbroken do the consequences of default apply. Against consumers, the notice about the 30-day rule is added.

The debtor also has to be identified unambiguously: correct company name, legal form and address. Mix-ups cause delays in the dunning procedure. A short status report at fixed intervals keeps the case transparent even after handover. For the constellation set out here the rule is: how to classify default interest and the €40 flat fee correctly.

Traceability matters more than decimal places. The breakdown should show the principal, the start of default, the interest period, the rate, the interest amount and any flat fees separately, so that the total remains verifiable.

The documentation belongs in the case file, not in a separate spreadsheet. Otherwise it cannot be found when the case moves to collection or court. When a file is handed to a collection agency, completeness of the paperwork is what determines how quickly work can begin. This care costs minutes and saves days if the matter is ever disputed.

The common sources of error are quickly named: reacting too late, undocumented agreements, instalment plans without written confirmation, and assuming a phone call replaces a formal reminder. None of these is legally complex; all of them cost time. A short note in the system replaces any later reconstruction from memory.

The limitation period is often underestimated as well: the standard period is three years and starts at the end of the year in which the claim arose. Overlooking it means losing enforceable claims for no reason. Registered collection service providers in Germany operate under the Legal Services Act (RDG) and record every processing step verifiably. Translated into practice this means: how to classify default interest and the €40 flat fee correctly.

For creditors this means liquidity becomes more predictable once the consequences of default are asserted consistently. Ancillary claims are less a source of income than a signal that payment terms are meant seriously.

At the same time the documentation effort grows. Automating it pays off; handling it manually erodes the benefit quickly. In debt collection, the combination of fast contact and a solid chain of evidence decides the prospects of recovery. A fixed cycle is more effective than a review that only happens when someone asks for it.