{"id":21509,"date":"2025-08-11T15:28:52","date_gmt":"2025-08-11T13:28:52","guid":{"rendered":"https:\/\/alistar.net\/?p=21509"},"modified":"2026-10-02T10:08:29","modified_gmt":"2026-10-02T08:08:29","slug":"mandatory-e-invoicing-via-peppol-starting-in-2026-preparing-technology-processes-and-people","status":"publish","type":"post","link":"https:\/\/alistar.net\/en\/blog\/verplichte-e-facturatie-via-peppol-vanaf-2026-technologie-processen-en-mensen-klaarstomen\/","title":{"rendered":"Mandatory e-invoicing via Peppol Starting in 2026: Preparing Technology, Processes, and People"},"content":{"rendered":"

Starting January 1, 2026, there will be a major change in the way Belgian companies handle their invoicing. From then on, all B2B invoices must be sent via the Peppol network<\/strong> are sent, in a standardized e-invoicing format<\/strong>.<\/p>\n\n\n\n

For many organizations, this means a complete transformation: no more individual PDFs or paper invoices, but a fully digital, structured approach that is automatically processed by systems. This is more than just an IT upgrade; it\u2019s a change that affects technology, processes, and people.<\/p>\n\n\n\n

Those who plan ahead can turn this transition into an opportunity: streamlining processes, reducing errors, and improving collaboration between teams. Those who wait risk technical delays, higher costs, and resistance within the organization.<\/p>\n\n\n\n

Technology: What Changes Will the Mandatory E-Invoicing via Peppol Bring?<\/h2>\n\n\n\n

To ensure the transition to structured e-invoicing, the government will introduce four key rules effective January 1, 2026. These go beyond simply \u2018switching to a different file format\u2019:<\/p>\n\n\n\n

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  1. Mandatory Submission via Peppol<\/strong>
    All invoices between VAT-registered businesses must be sent via the Peppol network. PDFs or paper invoices are no longer legally valid for B2B transactions.<\/li>\n\n\n\n
  2. Standardized format<\/strong>
    Invoices must be prepared in the UBL (Universal Business Language) format, which allows systems to process them automatically without manual intervention.<\/li>\n\n\n\n
  3. Strict validation and verification<\/strong>
    Peppol performs automatic checks. Incomplete or incorrect invoices are rejected and do not reach the customer.<\/li>\n\n\n\n
  4. Fines for Noncompliance<\/strong>
    The government has established a tiered penalty structure: \u20ac1,500 for the first violation, \u20ac3,000 for a repeat offense, and \u20ac5,000 for ongoing noncompliance.<\/li>\n<\/ol>\n\n\n\n

    In short: e-invoicing via Peppol is not an optional choice, but a legal requirement that calls for timely technical preparation.<\/p>\n\n\n\n

    Processes: How Does Peppol Affect Your Day-to-Day Operations?<\/h2>\n\n\n\n

    The transition to Peppol affects not only the technology, but also your billing processes<\/strong> and internal work agreements. For example:<\/p>\n\n\n\n