Electronic invoicing is often presented as a technical or regulatory topic. In reality, it is first and foremost a trust problem. Invoices contain sensitive financial, contractual and sometimes personal data. Once exchanged through Peppol or similar networks, these documents become part of critical business flows that must be secure, reliable and auditable. ISO/IEC 27001 is widely referenced in this context, yet frequently misunderstood.

On 2 December 2025, Belgium’s Federal Public Service Finance confirmed two essential points: 1. The Belgian B2B e-invoicing mandate enters into force on 1 January 2026. Structured electronic invoicing becomes mandatory for all domestic B2B transactions between VAT-liable companies. 2. A three-month tolerance period will apply during Q1 2026. But this is not a postponement, the obligation remains fully active.The tolerance applies only to businesses that have begun the

Our consultants work hands-on with your teams to ensure a perfect fit, from mapping and integrations to architectural alignment, audit readiness and hardened environments for ISO 27001 and internal governance requirements.