Belgium’s tax authorities have confirmed that the mandatory B2B e-invoicing regime will begin on January 1, 2026, with no transitional delay, and urged businesses to finalize their Peppol-based readiness. The updated FAQ clarifies key rules on invoice dating, input VAT eligibility, written opt-outs, Hermes phase-out, and verification of public entities via the CBE portal Belgian tax authorities ha... Read more

FPS Finance in Belgium has updated the GKS 2.0 technical documentation, adding three revised “Use Cases” dated 26 September 2025. Let’s look into this in more detail. Read more

Belgium’s FPS Finance released Version 2.1 of the GKS 2.0 technical specifications, refining how POS systems communicate with fiscal data modules. The update enforces stricter use of date/time fields in RFC3339 format, clarifies functions like costCenterChange and transaction reporting, and introduces new features such as the Robotuser for automated reports. Read more

Belgium’s FPS Finance has released version 1.08 of the Registered Cash Register System (RCRS) Technical Specifications, refining the API protocol between the Fiscal Data Module (FDM) and FinCloud. The update introduces new data elements, security adjustments, and guidance on message size limits, enhancing accuracy, reliability, and compliance in electronic fiscal data reporting for the HoReCa sect... Read more

Belgium’s Royal Decree of 14 July 2025 confirms that from 1 January 2026, structured e-invoicing via the Peppol BIS standard will be mandatory for all domestic B2B transactions between Belgian VAT-registered entities, with limited exemptions. The Decree sets technical requirements, allows alternative EU-compliant formats by mutual agreement, and introduces fines ranging from €1,500 to €5,000 for non-compliance, while also changing VAT rounding rules to permit rounding only on the total VAT amount. Read more

Belgium’s Royal Decree No. 2025005169 requires all VAT-registered businesses to use structured electronic invoices for B2B transactions starting 1 January 2026. Invoices must be sent via the PEPPOL network using EU standard EN 16931. While alternative EU-compliant formats may be used with mutual consent, all businesses must still support PEPPOL.VAT rounding is only allowed on the total amount, not... Read more