: Update internal accounts payable (AP) and accounts receivable (AR) workflows to handle structured XML data instead of PDFs.

: The mandate applies to all Belgian businesses simultaneously on January 1, 2026 . There is no phased rollout based on company size. Exemptions : Transactions with non-taxable persons (B2C).

: While not the exclusive method, Peppol is the default framework . If two parties do not agree on a specific technical format, the invoice must be sent via the Peppol network.

: Verify if current ERP or accounting software is "Peppol-ready."