
Belgium’s B2B E-Invoicing Mandate 2026: Deadlines, Penalties & Who Must Comply
Belgium’s B2B e-invoicing mandate requires every VAT-registered business established in Belgium to send and receive structured electronic invoices for domestic business-to-business transactions. The rule has applied since 1 January 2026, and full enforcement began on 1 April 2026. Invoices must use the Peppol BIS Billing 3.0 format and travel over the Peppol network. A PDF…

