What is Peppol and why does it concern you?
Peppol (Pan-European Public Procurement OnLine) is the European network for exchanging structured electronic invoices. In Belgium, the use of Peppol is already mandatory for all invoicing to public administrations (B2G markets). From 2026, this obligation extends to all B2B exchanges between Belgian companies subject to VAT.
Concretely, this means that if you are self-employed, an SPRL or SA established in Belgium and subject to VAT, you must be able to send AND receive structured electronic invoices via the Peppol network.
Key dates to remember
| Date | Obligation | Who is affected? |
|---|---|---|
| Already in force | Mandatory sending via Peppol for public contracts (B2G) | All Belgian companies |
| January 1, 2026 | Reception of electronic invoices mandatory | All companies subject to VAT |
| July 1, 2026 | Sending of electronic invoices mandatory | SMEs and self-employed |
What you risk in case of non-compliance
Failing to comply with the Peppol 2026 electronic invoicing obligation exposes your company to several concrete risks:
- Tax penalties: Administrative sanctions can be applied by SPF Finance in case of non-compliance with invoicing obligations.
- Invoice rejection: Your customers and suppliers subject to VAT could legally refuse non-compliant invoices.
- Loss of public contracts: Without Peppol access, you cannot participate in public tenders.
- Payment delays: Large companies that only receive e-invoices could block processing of your paper or standard PDF invoices.
- Professional image: Your business partners will see your delay as a lack of administrative seriousness.
What must a Peppol compliant electronic invoice contain?
An electronic invoice compliant with the Peppol BIS Billing 3.0 standard must contain at minimum:
- Complete contact details of the sender and recipient (including VAT number)
- The unique and sequential invoice number
- The issue date and due date
- Detailed description of goods or services
- Amounts excluding VAT, VAT and including VAT per line and in total
- The UBL 2.1 format (structured XML) or CII (Cross-Industry Invoice)
- Transmission via a certified Peppol Access Point
How to prepare for the 2026 obligation?
- Check your current software: Does it support UBL 2.1 format and sending via Peppol? If not, you need to migrate.
- Get your Peppol identifier: In Belgium, it is based on your VAT number (0XXXXXXXXX in the format 9954:0XXXXXXXXX).
- Choose a certified Access Point: This is the technical service provider that connects you to the Peppol network. Ledgerly takes care of this for you.
- Test sending and receiving: Before the deadline, do tests with your main partners.
- Train your team: Make sure that the people managing invoicing understand the new workflows.
Conclusion
The Peppol 2026 electronic invoicing obligation is an inescapable reality for all Belgian companies subject to VAT. Anticipating this transition will help you avoid sanctions and put you ahead of your competitors.
Ledgerly is designed to support you in this transition, with Peppol 2026 compliance already integrated, without any technical configuration on your part.
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