Since 1 January 2026 every VAT-registered company established in Belgium must send and receive its B2B invoices as structured e-invoices over Peppol. aiDoks creates the Peppol BIS 3.0 XML for free — from a form or a PDF — checks it against the rules, and opens the Peppol invoices you receive. It does not send the invoice: that is the job of a Peppol access point. Here is how the pieces fit together.
Fill in the form or upload a PDF, scan or photo and let AI fill it in. Search the Peppol Directory by name or company number to fill in your customer's Peppol ID. Saved customers, products and templates speed up the next one; credit notes work the same way.
Before download the invoice is checked against the EN 16931 and Peppol BIS 3.0 rules, with errors explained in plain language. You get a Peppol BIS 3.0 UBL XML file, plus a PDF copy for your records.
Upload the XML to the Peppol access point or invoicing tool you use, if it accepts UBL files. The access point delivers it to your customer's access point — that transmission is the part aiDoks does not do.
aiDoks creates Peppol BIS 3.0 invoices and credit notes and validates any Peppol XML against the official rules, so your access point or your customer does not reject it.
Sending and receiving over Peppol needs an access point, and aiDoks is not one. Hermes, the free government service that forwarded Peppol invoices by e-mail, stopped on 31 December 2025.
Belgian public authorities receive e-invoices through Mercurius — via your access point, or via the free Mercurius portal, where you log in with eID and type the invoice into a web form. The portal does not take an uploaded file.
Got a Peppol XML you cannot read, or want to check before you book it? The free viewer opens it as a readable PDF, and the validator lists any rule it breaks.
A Belgian company's Peppol ID is usually 0208 followed by its enterprise number (KBO/BCE). The Peppol Directory search in the invoice form finds it for you.
No. aiDoks creates and checks the Peppol BIS 3.0 XML and reads the invoices you receive, but it is not a Peppol access point. Upload the XML to the access point or invoicing tool you use, if it accepts UBL files. Hermes, the free government forwarding service, closed on 31 December 2025.
Yes. The free plan covers 6 e-invoices a month, and Pro (€4.85 a month) is unlimited. Validating and viewing XML files is free.
Peppol BIS Billing 3.0 — an XML invoice in UBL 2.1 that follows the European standard EN 16931. A PDF, even sent by e-mail, does not meet the B2B obligation since 1 January 2026.
Search the Peppol Directory by name or company number from the invoice form — one pick fills the scheme and the ID. For Belgian companies it is usually 0208 followed by the enterprise number (KBO/BCE).
Public authorities receive e-invoices through Mercurius: send it through your Peppol access point, or type it into the web form of the free Mercurius portal after logging in with eID. The portal does not accept an uploaded file.
Open it in the free viewer: it shows any Peppol, UBL or CII invoice as a readable PDF. The validator tells you whether it breaks any rule before you book it.
Create or convert, check, download the XML — then send it through your access point.