e-Invoicing in Belgium

Mandatory E-invoicing in Belgium

Learn how to get your company ready to exchange documents in accordance with regulations in Belgium

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Mandatory E-invoicing in Belgium

Belgium has already started introducing mandatory e-invoicing for B2G transactions in a phased manner. The Ministry of Finance does not intend to stop there, and it is likely that Belgium will start partially introducing mandatory B2B e-invoicing from July 2024

Who is obliged to use e-invoicing in Belgium?

All Belgian public bodies are already obliged to be able to receive and process electronic invoices in the context of public procurement. This new national legislation broadens the scope of the Directive and makes it mandatory for all federal government suppliers to issue electronic invoices (transposition of Directive 2014/55/EU).

It is well known that electronic invoices are expected to save time and money, because Belgium has around €3.6billion in missing VAT revenues according to the EU’s last VAT Gap estimate. 

B2G e-Invoicing timeline

The timeline for implementing B2G e-invoicing in Belgium is as follows:

Is e-invoicing mandatory for B2B?

Despite the fact that there is no official schedule for mandatory B2B e-invoicing yet, we can assume that the timeline will be as follows:

Belgium is likely to adopt the PEPPOL framework, the standard for B2B e-invoicing, which is also used for B2G transactions. The Belgian tax authorities will probably adopt the "four-corner model" as a base.

Why is Comarch the best choice?

We have 20+ years of experience in carrying out various EDI, e-invoicing, and other document exchange projects around the world. In those years, we have successfully connected more than 130,000 entities from over 60 countries.

  • 1. Legal compliance

    Full compliance with the latest data exchange regulations and modern data transfer standards

  • 2. Digitization

    Applying new technologies and IT solutions in order to streamline workflows and automate activities and procedures

  • 3. Individual approach

    Tailor-made solutions based on processes specific to each company – own road map and a suitable pace of changes

  • 4.Security

    Highest level of security for all sensitive and important company data

    What is Mercurius Platform and how does it work?

    B2G invoices are to be submitted through the Mercurius platform. This platform was developed by the Belgian government and is connected to the PEPPOL network. Invoices and credit notes exchanged via the Mercurius platform have to be compliant with the PEPPOL BIS 3.0 document format.

    What characterizes the Mercurius Platform?

    • Mercurius facilitates systems integration between senders and receivers.
    • Mercurius is equipped with a web portal that is accessible to all Belgian organizations, and provides track and trace services to senders, receivers and their service providers.
    • The portal also supports the manual submission of invoices.
    • Mercurius is fully and exclusively aligned with PEPPOL.
    • The Mercurius platform can also convert transmitted documents from machine-readable (XML) to human-readable (PDF) format.

    Comarch is a certified PEPPOL access point

    Under the four-corner PEPPOL model, the buyer and supplier exchange invoices via an access point, which is a PEPPOL certified service provider that ensures data security and compliance with PEPPOL standards (e.g., UBL format or AS4 communication protocol).

    How can we help?

    For years, we have been helping companies from many different industries operating in countries where e-invoicing has become obligatory (such as France, Spain, Germany, Turkey and Italy) and those where such an obligation will be introduced (for example, Poland). What is especially important here is that the Comarch e-Invoicing solution is fully compliant with the latest regulations and modern data transfer standards.

    Learn more about Comarch Data Exchange Solutions

    Join the companies that have already improved their data efficiency with Comarch e-Invoicing!


    Comarch has many years of experience in providing innovative IT products and services allowing for efficient document management and automation of various supply chain processes.

    Check out some of our success stories to learn what our clients have achieved by using Comarch EDI, MDM, e-Invoicing (also in a Cloud), and Online Distribution.

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