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

From 1 January 2026, structured e-invoicing in XML format will be mandatory for B2B transactions between Belgian VAT-registered businesses. E-invoices must include clear descriptions, quantities, VAT in euros, and credit note references. VAT deduction requires valid invoices and proper documentation. Courts have denied deductions for vague invoices, despite the EU’s “substance over form” principle... Read more

Belgium will mandate B2B e-invoicing from January 1, 2026, under the Royal Decree of 8 July 2025, in line with the EU’s ViDA initiative. The standard format will be Peppol BIS (UBL), with alternatives allowed only by mutual agreement and EU compliance. All VAT-registered businesses must be able to send and receive e-invoices. Penalties for non-compliance start at €1,500 and rise to €5,000 for repe... Read more

On July 8, 2025, Belgium confirmed that mandatory structured e-invoicing for domestic B2B transactions between VAT-registered taxpayers will begin on January 1, 2026, as per the Law of 6 February 2024. The obligation excludes B2C transactions, exempt or foreign transactions, and non-VAT-registered or bankrupt entities. Invoices must use the Peppol BIS format or a EU-compliant alternative, but all... Read more

Belgium’s FPS Finance has granted deadline tolerance for the mandatory transition to GKS 2.0 cash register systems in the hospitality sector, due to a shortage of certified devices. Catering businesses without an existing GKS now have until 1 January 2026 to comply, with the option to voluntarily switch to GKS 2.0 or temporarily install GKS 1.0. Read more

On May 23, 2025, Belgian FPS Finance released version 1.3 of the “Registered Cash Register System – Technical Specifications,” introducing key updates to support GKS 2.0 implementation. Notably, the FDM buffer must now be accessible to back-office systems for reading and copying, enhancing auditability and data extraction. Read more