E-invoicing in Belgium

Belgium is embracing e-invoicing as part of its drive toward digitizing financial processes and improving transparency and efficiency. With mandates for both business-to-government (B2G) transactions and strong encouragement for business-to-business (B2B) e-invoicing, Belgium is becoming a leader in digital invoicing within the EU. Here’s a detailed look at the current state of e-invoicing in Belgium and what businesses need to know to stay compliant.

In Belgium, Business-to-Government (B2G) e-invoicing has been mandatory since 2017 for federal government suppliers. This requirement has since been expanded to other levels of government, including regional and local administrations.

The Belgian government uses Mercurius, a central platform for B2G e-invoicing, which is connected to the Peppol network. The Peppol network is an internationally recognized standard for secure e-invoicing, making it easier for businesses to send invoices electronically across borders.

Public sector suppliers must issue invoices in the Peppol BIS 3.0 format, which ensures compatibility with the EU-wide e-invoicing standard EN16931. The Peppol network also facilitates the secure exchange of e-invoices, ensuring faster processing and reducing errors.

While B2G e-invoicing is mandatory, Business-to-Business (B2B) e-invoicing is still voluntary in Belgium. However, the government is encouraging businesses to adopt e-invoicing as part of a broader push toward digitization and improving business efficiency. E-invoicing adoption among Belgian businesses is growing rapidly, and many companies are choosing to switch to electronic invoicing due to the operational benefits it provides.

Belgium is likely to follow other EU countries in making B2B e-invoicing mandatory in the near future, as part of its efforts to align with EU directives on digitalization and tax compliance. Businesses are advised to begin preparing for this transition now to avoid disruptions later.

E-Invoicing Standards in Belgium

Belgium follows the Peppol BIS 3.0 standard for e-invoicing, which is part of the Peppol framework. This ensures that e-invoices sent in Belgium are compliant with the European Norm (EN) 16931, the EU’s standard for e-invoicing. Peppol-compliant invoices must include structured data fields, allowing for easy integration with accounting and ERP systems.

The Mercurius platform serves as a central hub for receiving e-invoices from businesses supplying public administrations. Businesses can also send e-invoices via Peppol access points, which are third-party service providers certified to transmit invoices through the Peppol network.

The Future of E-Invoicing in Belgium: Upcoming Mandates

Belgium is part of the European Union’s broader move toward e-invoicing, and additional mandates are expected to roll out over the next few years. The EU is encouraging all member states to implement e-invoicing across both the public and private sectors as a way to improve tax compliance and reduce VAT fraud.

It is anticipated that B2B e-invoicing will become mandatory in Belgium by 2026, in line with other European countries that have already implemented such mandates. The Belgian government is likely to announce an official timeline and further details as part of its ongoing digital transformation agenda.