From Jan. 1, 2026, e-invoicing through Peppol will become mandatory For B2B invoices between Belgian VAT-registered companies. The Royal Decree of July 8, 2025 finalized the rules of the game.
However, many business owners are left with question marks. In this article, we address some frequently asked questions about the legal impact of e-invoicing through Peppol.
1. When an invoice enters my accounts through Peppol, do I automatically agree to pay it?
No. Receiving (and automatically posting) an e-invoice via Peppol does not imply an agreement to pay. Your company retains the right to invoice check and, if necessary, disputable, even after the (preliminary) entry.
Peppol is just the exchange network. Whether or not to accept an invoice is a separate issue. So disputing an invoice through the usual channels (registered letter, e-mail etc.) is still possible, but do so timely.
Also read: 5 misconceptions about PEPPOL and e-invoicing
2. Is payment also made through Peppol?
No. E-invoicing through Peppol changes the method and obligation of payment not: you pay as provided for in your contract or general terms and conditions (bank transfer, payment link/QR code, etc.). Payment terms also remain as stipulated by law or as contractually agreed.
3. As a supplier, can I send a payment reminder through Peppol?
No, you cannot automatically send reminders through Peppol. You can always send a payment reminder via email and is also possible through some software packages.
In any case, always refer clearly to the original Peppol invoice and to the agreed payment period.
4. What if I still receive a paper or PDF invoice after 1/1/2026?
As of Jan. 1, 2026 e-invoicing via Peppol will be mandatory for B2B invoices between Belgian VAT-registered companies. A paper or PDF invoice will not meet the requirements from then on.
Do you still receive one? Ideally, return the invoice with a reasoned refusal. From this reasoned refusal, the reason should be clear why you do not accept the invoice, namely because it was not sent through the Peppol network.
Do you also disagree with the content of the invoice? If so, please include this immediately in your reasoned refusal.
5. How should I update my terms & conditions & disclaimers?
As a vendor, update your terms and conditions of sale so that e-invoicing through Peppol contractually anchored is. In addition, provide a disclaimer: Peppol reduces risk but does not completely eliminate fraud. Internal controls remain necessary.
Sample clause - e-invoicing via Peppol (sender):
'The Seller sends invoices electronically via the Peppol network in accordance with EN 16931. The Buyer undertakes to receive and process these invoices in that format.'
Sample clause - risk mitigation/fraud warning:
'While Peppol reduces the likelihood of error and fraud, it does not provide an absolute guarantee. The Customer remains responsible for internal controls, including verification of vendor data, Peppol IDs and approval procedures.'
6. What if I have a foreign supplier who does not yet use Peppol?
The e-invoicing requirement only applies to B2B invoices between Belgian companies subject to VAT. Until July 1, 2030 may you have another 'ordinary' invoice received from abroad.
However, many countries are introducing e-invoicing earlier. For example, the deadline in France on Sept. 1, 2026.
Is your company already Peppol-proof?
The clock ticks inexorably on: Jan. 1, 2026 approaches at lightning speed. Have you not yet taken steps towards e-invoicing via Peppol? Then now is really the time to take action.
Titeca is ready to guide you and make this legal obligation a opportunity make for your business.