From January 1, 2026, e-invoicing will become mandatory in the B2B sector in Belgium. From that date, all businesses (such as SMEs, self-employed persons and freelancers) will have to send and receive their invoices electronically via Peppol, which stands for Pan-European Public Procurement Online.
Peppol stands for Pan-European Public Procurement Online, and is an international interoperability framework that enables the exchange of electronic documents and makes e-invoicing and e-procurement easier, faster and safer.
Today this is already mandatory for companies that collaborate with the Flemish or Federal government, from January 2026 this will be extended to all companies. By 2028, e-invoicing must be the norm within all member states of the EU.
E-invoices in XML file
E-invoicing stands for exchanging and processing e-invoices in a structured XML-file.
Naturally, this mandatory electronic invoicing also has an impact on your company. From 2026, you must be able to exchange and process e-invoices in a structured XML file and via a secure transmission. PDF invoices do not fall under this heading.
Advalvas as Access Point
E-invoicing uses so-called Access Points (AP) that receive XML invoices from a company, encrypt and check the e-invoice to ensure the data’s validity and integrity and forward them via Peppol to other companies or Access Points.
ICASA has chosen to work with Advalvas as Access Point. Each customer is responsible for concluding an agreement with Advalvas for the processing of electronic invoices. As soon as this is provided, we can create invoices for you from the ICASA Suite in the requested XML file and deliver them to Advalvas.
Need help?
Do you need help in setting up e-invoicing? Get in touch and we’ll gladly help you to become Peppol compliant.
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