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Typical case8 min read

Chasing unpaid invoices with an AI agent, without upsetting your clients

An AI agent can track your due dates and prepare reminders in the tone you choose. You keep the formal notice, the credit note and disputes. What the law says.

On a light wooden desk, a closed white envelope resting on a pile of white sheets, a petrol-blue pen lying across it.
AI-generated image

In short

  • The Payment Reminders and Invoices agent, now in preparation, will track your due dates, prepare reminders in the tone you have chosen and suggest matching each payment received to its invoice.
  • A person in your team will keep control of issuing invoices, formal notices, credit notes, promises of extra time and any client in dispute.
  • The result will be measured with one simple figure: the average payment time, before and after.

Take a typical scenario. An SME of 30 employees invoices its clients at 30 or 60 days. The person in charge of accounting chases when they find the time, with emails written one by one. Some invoices wait for weeks without anyone noticing. The business owner does not want a robot that harasses clients. They want every late payment to be seen and chased at the right time, in the right tone.

That is the job of the Payment Reminders and Invoices agent, one of the typical agents we are preparing. Here is what it will do, what it will not do, and how we will measure its effect.

What the law says about payment terms

The rules set the dates the agent will work to. Here they apply to invoices between businesses.

In France, Article L441-10 of the French Commercial Code provides for:

The invoice must also state the payment date, the penalty rate and the amount of this allowance (Article L441-9). Some industries, such as transport, have their own terms.

In the European Union, Directive 2011/7/EU sets the common base. A directive is a European text that each country transposes into its own law. This one provides for:

Each country may go further in favour of the creditor.

In Spain, Ley 3/2004 sets, without agreement, 30 calendar days after receipt of the goods or provision of the services. It forbids agreeing more than 60 calendar days. It automatically adds a fixed sum of €40 for recovery costs, without the need to claim it.

In Belgium, the law of 2 August 2002 on late payment in commercial transactions was strengthened by a law of 14 August 2021, in force since 1 February 2022. Between businesses, it provides for:

For the agent, this will mean one thing: for each invoice, it will know the due date and the day when penalties and allowance become due. Whether to mention them in a reminder remains your commercial choice. This article does not replace the advice of a lawyer.

What the agent does

The agent will start work every working day, at each payment received and each quote accepted. It will read three sources, through their official interfaces (APIs) where they allow it:

Each access will be limited to what is strictly necessary, read-only where possible. The agent will run where you choose: your cloud account in a European region, your servers or a dedicated server with us. Only indicators and alerts will go up to our supervision tool. The AI model will be called, where possible, through your own cloud account; depending on the provider, it may be operated outside the EU, under GDPR safeguards.

From there, it will prepare:

Every action will go into a log: what the agent read, what it proposed, who approved and when.

What stays with a person

Some decisions affect your client relationship or your rights. The agent can prepare them, but never makes them. A person in your team always approves:

And a client in dispute leaves the agent's circuit: the file goes back to your team.

In our method, autonomy is set by levels, action by action: from 0 (the agent proposes, you act) to 3 (it acts alone under supervision). At level 1, it prepares and you approve each action. At level 2, it acts alone on the cases covered by written rules and leaves the others to you. The client chased is told that the message comes from an AI system. The four decisions above never go beyond level 1. Another action moves up a level only if the measurements justify it and with your written agreement. After a serious alert, the agent will go back down a level.

Choosing the tone and timing of reminders

The tone is decided with you, when we write the agent's rulebook. You approve a message template for each step. It can vary by client: you do not chase a client of ten years the way you chase a new one.

Here is an example schedule, to adapt to your business:

  1. a few days before the due date, a friendly reminder with the invoice attached;
  2. shortly after the due date, a courteous reminder asking whether everything is in order;
  3. two weeks later, a firmer reminder, which may mention the penalties provided for in your terms of sale;
  4. then, a draft formal notice, which the agent prepares and which only you decide to send.

At the start, every reminder will go through approval: you will read it, correct it if needed, then approve it. We will support your team in getting started.

When the agent stops and hands over

An agent that guesses is a dangerous agent. This one will have stopping cases written in its rulebook. It will stop and hand over to you when:

If the agent itself runs into a problem, such as an error that keeps repeating, it will report it to our support, now in preparation. A ticket will open and we will be alerted. You will see it in your future client area.

Measuring the result: the average payment time

One figure sums up the agent's effect: the average payment time. For each invoice paid over a period, we count the days between its issue and its payment, then take the average.

Other indicators will complete the picture: amount chased and collected, share of drafts accepted by your team, matching errors. They will go up to the supervision dashboard and the monthly report, now in preparation. We do not promise a figure in advance: we measure, then decide together what comes next.

Going further

Sources

  1. Code de commerce, article L441-10, version en vigueur (Légifrance) · accessed 12 October 2026
  2. Code de commerce, article D441-5 (Légifrance) · accessed 12 October 2026
  3. Code de commerce, article L441-9, version en vigueur (Légifrance) · accessed 12 October 2026
  4. Délais de paiement entre professionnels et pénalités de retard (Entreprendre.Service-Public.fr, fiche F23211, vérifiée le 07/08/2026): 30 days by default, 60 days or 45 days end of month, penalties without reminder, €40 allowance once per invoice · accessed 13 October 2026
  5. Mentions obligatoires sur une facture (Entreprendre.Service-Public.fr, fiche F31808, vérifiée le 11/08/2026): payment date, penalty rate, fixed allowance of €40 · accessed 13 October 2026
  6. Commission européenne, DG Marché intérieur, « Late payment »: Directive 2011/7/EU (60 days unless expressly agreed and not grossly unfair, interest at least 8 points above the ECB reference rate, €40 minimum, provisions more favourable to the creditor allowed) · accessed 13 October 2026
  7. L'Europe est à vous (Your Europe), « Retards de paiement »: interest due 30 calendar days after receipt of the invoice, €40 per invoice paid late (last checked 05/08/2026) · accessed 13 October 2026
  8. Ley 3/2004, de 29 de diciembre, de lucha contra la morosidad en las operaciones comerciales (BOE, texte consolidé, dernière mise à jour publiée le 01/10/2014) · accessed 13 October 2026
  9. Ley 3/2004, fiche d'analyse et références postérieures (BOE ; dernière modification listée en 2014) · accessed 13 October 2026
  10. Loi du 2 août 2002 concernant la lutte contre le retard de paiement dans les transactions commerciales, version consolidée mise à jour au 01/06/2022 (Justel, SPF Justice) · accessed 13 October 2026

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