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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Who is obliged to use e-invoicing

Who is obliged to use e-invoicing in Belgium?

Belgium has already introduced mandatory e-invoicing for B2G transactions. All Belgian public bodies are already obliged to be able to receive and process electronic invoices in the context of public procurement, which makes it mandatory for all federal government suppliers to issue electronic invoices (transposition of Directive 2014/55/EU). This obligation applies to contracts above EUR 30,000, and from October 2023 it also covers contracts below this amount. Invoices with amounts below EUR 3,000 are exempt from electronically sending.

Archiving requirements for e-invoicing

Is e-invoicing mandatory for B2B?

Currently, B2B e-invoicing is possibly provided when both parties, the seller and the buyer, agree to it. However, measures to reform the tax system, including the invoice exchange model and the transition to electronic invoicing, already started. The Belgian Ministry of Finance has announced that the reforms will focus on electronic invoicing in the private sector in B2B transactions. The main focus will be on reporting data from invoices. PEPPOL is likely to be the preferred standard for e-invoicing, which will include near-live e-reports to replace the annual customer inventory report. 

Despite the planned implementation of mandatory electronic invoicing in 2024 due to the legislative impasse around comprehensive tax reforms in Belgium, and given the complexity of the Belgian legal framework, the implementation of e-invoicing was postponed to 2026

E-invoicing implementation timeline

Mandate is now planned to be introduced in a single phase starting in January 1st 2026. Exact criteria for entities falling under each stage are not known just yet (likely the initial phase will encompass only the largest entities). As of now, no further regulations regarding B2G, B2C or any reporting regimes were put forth. The mandate shall apply to all VAT-taxable entities conducting B2B transactions, except:

  • Taxable persons carrying out exclusively transactions exempted from VAT under art. 44 of Belgian VAT Code (Specific medical services, cultural activities etc.)
  • Taxable persons applying a flat-rate scheme under art. 56 of Belgian VAT Code
  • Taxable persons in state of bankruptcy
  • Transactions regarding supply of goods outside of Belgium, whereas no Belgian Tax ID is not necessary

VAT-Directive derogation procedure underway.

E-invoicing process description

E-invoicing process description

Belgian authorities aim to base their e-invoicing landscape on the Peppol network already used in B2G transactions. Nowadays, joining the network is also through a publicly offered “Hermesplatform, allowing for receiving and converting the invoices or via an authorized PEPPOL services provider. However, the platform is scheduled to go out of commission in the years following the mandate’s introduction, so finding an authorized e-invoicing partner may be critically necessary.

Suppliers of the public sector have two options to submit their invoices:

  • Manual upload – the respective interface not only enables the suppliers to send structured invoices and credit notes but also makes it possible for the sender, recipient, and service provider to check the status of the sent documents
  • Through PEPPOL – automatically via a PEPPOL Access Point

E-invoicing process description

How integrity and authenticity may be ensured?

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.

Mercurius facilitates the integration of systems between senders and recipients. It is equipped with an online portal that is accessible to all Belgian organizations and provides tracking services for senders, recipients and their service providers. The portal also allows manual upload of invoices. Mercurius is fully and exclusively aligned with PEPPOL. The platform can also convert uploaded documents from a machine readable format (XML) to a human readable format (PDF).

How integrity and authenticity may be ensured?

How can Comarch help?

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 (for example, UBL format or AS4 communication protocol).

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

    Legal regulation changes in Belgium

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