Validate Peppol invoices for Belgium
Peppol BIS Billing 3.0 is required in Belgium. Belgium went live with mandatory B2B e-invoicing on January 1, 2026, making it the first EU country to mandate Peppol as the exclusive B2B channel.
Check a Peppol invoiceChecking is free. The tool detects the profile itself.
At a glance
FormatPeppol BIS Billing 3.0
StandardEN 16931
MandateB2B mandatory
PeppolConnected
PortalMercurius ↗
What we validate
UBL 2.1 XML schema compliance
Peppol BIS Billing 3.0 business rules
EN 16931 semantic model compliance
Party identification (Peppol IDs)
Tax calculation accuracy
Code list validation (currency, country, unit codes)
Attachment handling (embedded documents)
Common Peppol rejections
PEPPOL-EN16931-R001Missing business process typeBR-01Invoice must have specification identifierBR-02Invoice must have an invoice numberBR-25Seller electronic address requiredBR-CO-10Sum of VAT category amounts incorrectBelgium e-invoicing requirements
| Phase | Status | Scope |
|---|---|---|
| B2G | Live (Nov 2022) | All federal government suppliers |
| B2B | Live (Jan 2026) | All Belgian VAT-registered businesses |
Validation enginePeppol validation (OpenPeppol rules + Belgian CIUS)
Required CIUSPeppol BIS Billing 3.0
Government portalMercurius (B2G access point) ↗
Routing identifierKBO/BCE enterprise number (mapped to Peppol ID)
PeppolMandatory — Peppol is the sole B2B exchange channel
Belgium is the purest Peppol mandate in the EU — no alternative channels, no national portal fallback for B2B. This simplifies format handling but creates specific integration requirements.
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