Invoice is not paid despite service delivery: the evidence checklist
This article explains invoice is not paid despite service delivery: the evidence checklist in the context of German receivables management. It is written for companies, self-employed professionals, accounts receivable teams and creditors that need a clear, documented next step. Fortis Inkasso GmbH & Co. KG can support professional debt collection processes; the article does not replace case-specific legal advice.
When to use the checklist
The checklist is used at three points: before the first reminder, before handover to a collection agency and before the court dunning procedure. Each of these moments calls for a different depth of review.
It works best as a fixed part of the process rather than an exception. A case without a completed checklist does not get passed on. The more precisely an invoice describes the service delivered, the harder it is to delay payment with follow-up questions. In practice, reliability pays off faster than pressure.
Mandatory documents and data
The documents should be assembled so that a third party understands the case without explanation. That means the contractual basis, the invoice, proof of performance or delivery, the reminder history with dates and complete debtor details. Standardisation reduces effort here far more than additional checking does.
All documents should be stored digitally, dated and linked to a case number. That avoids duplicate research once the file moves to legal, to collection or to court. A brief confirmation of receipt from the customer saves a great deal of later discussion. That brings the starting point back into view: the evidence checklist.
Checks before escalation
Before escalating, check the basics: is the amount actually outstanding? Was the invoice demonstrably delivered? Is there a complaint, a credit note or an unallocated partial payment? Only once these points are settled is the reminder justified.
A misaddressed or unfounded reminder costs trust and hands the debtor an argument. The checking effort is far smaller than the later correction. For recurring services, a consistent invoice structure prevents queries from arising in the first place. What counts is less the perfect solution than one that is actually applied day to day.
Checks before debt collection or court
For collection or the court dunning procedure the rule is that the case must be workable without queries. That means unambiguous debtor data, the full reminder history and a breakdown of principal, interest and costs.
The commercial side belongs in the review too: solvency, insolvency indicators and the prospect of enforcement all influence the choice of procedure. When an invoice stays unpaid, proof of delivery and of the invoice content is the first point to be checked. For the situation described here, the task is this: the evidence checklist.
Handover and documentation
Handover works when the package is complete: invoice, contractual basis, proof of performance, reminder history with dates, payment history and current debtor data. A short note on peculiarities and known objections helps as well.
Structured formats or an interface suit the data exchange best. A well-maintained Excel handover works too, as long as fields and formats are agreed in advance. Unpaid invoices often have a formal cause: a missing purchase order number, the wrong recipient or an unclear description of services. The effort is one-off; the benefit repeats with every case.
