Peppol8 min read
Peppol BIS validation: Schematron and rejection reports
Peppol BIS validation explained: the Schematron rules, the difference between a fatal error and a warning, and how to read a rejection report.
Tag
#EN 16931
Peppol8 min read
Attachments on a Peppol e-invoice explained
Attaching a PDF to a Peppol e-invoice: where the attachment sits in the UBL file, the allowed formats, and why it does not replace the structured invoice.
E-invoicing7 min read
The CII format explained: the other e-invoice syntax
The CII format decoded: the second syntax allowed by EN 16931, how it differs from UBL 2.1, where it comes from and when a Belgian business meets it.
E-invoicing7 min read
Factur-X: the hybrid e-invoice format explained
The Factur-X format explained: a hybrid PDF and XML e-invoice, its profiles, how it maps to EN 16931, and why Belgium invoices over Peppol BIS.
E-invoicing7 min read
The invoice type code (BT-3): 380, 381 and the rest
The invoice type code (BT-3) explained: what the InvoiceTypeCode does, the values 380, 381, 384 and 386, and how your software fills it automatically.
Business management8 min read
The purchase order: role, details and link to the invoice
The purchase order explained: its contractual role, what it contains, how it differs from the invoice, and how its reference flows into the e-invoice.
Peppol8 min read
VATEX codes: VAT exemption on the e-invoice
VATEX codes explained: what this VAT exemption reason code does on an e-invoice, when it becomes mandatory and how it ties into EN 16931.
Compliance & regulation9 min read
Legal basis for B2B e-invoicing in Belgium
The legal basis for B2B e-invoicing in Belgium: the law of 6 February 2024, the royal decree of 8 July 2025, the VAT Code and the EU framework.
E-invoicing9 min read
Foreign-currency invoice: showing VAT in euros
Foreign-currency invoice rules: why VAT must be shown in euros, which exchange rate to apply, and how a Peppol e-invoice carries two currencies at once.
Peppol8 min read
Peppol PINT: the international invoicing model
Peppol PINT explained: OpenPeppol's international invoicing model, its three content layers, and how it relates to Peppol BIS Billing 3.0 and EN 16931.
Compliance & regulation8 min read
Evidential value of an e-invoice: the guide
Evidential value of an e-invoice: the three legal guarantees (authenticity, integrity, legibility), the reliable audit trail and the role of Peppol.
Compliance & regulation8 min read
ViDA: VAT in the Digital Age in Europe
ViDA, the EU's VAT in the Digital Age reform: its three pillars, the timeline through 2035 and what it changes for Belgian businesses.
Compliance & regulation8 min read
Directive 2014/55/EU: e-invoicing in public procurement
Directive 2014/55/EU explained: what it requires for e-invoicing in public procurement, how it relates to EN 16931 and Peppol, and who it affects.
Peppol8 min read
Peppol BIS Billing 3.0: what the format contains
Peppol BIS Billing 3.0 decoded: what this invoice profile really requires, how it relates to EN 16931 and UBL 2.1, and what it changes for your invoices.
E-invoicing8 min read
The UBL 2.1 format explained: the structure of an e-invoice
UBL 2.1 decoded: where it comes from, how a structured e-invoice is organised, and how it relates to EN 16931 and Peppol BIS Billing 3.0.
Accounting6 min read
Belgian accounting software: how to choose in 2026
How to choose Belgian accounting software in 2026: Peppol connectivity, EN 16931 compliance, bank reconciliation, VAT handling and support for SMEs.
E-invoicing7 min read
E-invoicing software: how to choose one in Belgium
How to choose e-invoicing software in Belgium: native Peppol access point, EN 16931 compliance, send and receive, VAT, integrations and support.
Peppol7 min read
Belgium Peppol mandate: the B2B obligation from 1 January 2026
Belgium Peppol mandate explained: the law of 6 February 2024, who is in scope, what is excluded and the Peppol BIS format required for B2B invoices.