Since 1 January 2026, structured electronic invoicing has been mandatory in Belgium for almost all B2B transactions between companies subject to VAT. <\/p>\n
For businesses, this reform involves more than just a change in invoice format. It involves a change in invoicing, accounting and VAT management processes, and requires tools that can adapt to the new rules in the long term.<\/p>\n
Belgium has already made electronic invoicing mandatory for transactions with public authorities (B2G)<\/strong>.<\/p>\n Since March 2024, invoices addressed to the public sector must be transmitted in structured electronic format via the PEPPOL network<\/strong>.<\/p>\n This means that:<\/p>\n Since 1 January 2026<\/strong>, structured electronic invoicing has been mandatory for almost all B2B transactions between Belgian companies subject to VAT. The invoices concerned must be issued, transmitted and received in a structured format allowing automated processing. A simple PDF sent by email no longer meets the obligation for the B2B transactions concerned.<\/p>\n The authorities\u2019 objective is clear:<\/p>\n For companies, this now means having a system capable of issuing and receiving structured electronic invoices, as well as integrating these flows into invoicing, accounting and supplier management processes.<\/p>\n The B2B electronic invoicing obligation came into force on 1 January 2026. The first few months of implementation were also accompanied by flexibility measures and practical clarifications from the Belgian authorities.<\/p>\n During the first three months of 2026, the Belgian tax authorities adopted a flexible approach towards companies that were not yet fully compliant, provided that they could demonstrate that they had taken reasonable and timely steps to comply.<\/p>\n As this period of tolerance has now ended, the companies concerned must now be able to fully comply with the obligations applicable to their B2B flows.<\/p>\n Self-billing, i.e. the mechanism whereby the customer issues the invoice in the name and on behalf of the supplier, was also subject to temporary flexibility.<\/p>\n For certain technical issues related to the implementation of electronic invoicing, a specific tolerance had been provided until 30 June 2026.<\/p>\n As this period has now expired, companies using self-billing must ensure that their processes and systems enable them to manage these electronic invoices in accordance with the applicable requirements.<\/p>\n The implementation of the obligation is also accompanied by a system of penalties. Companies that do not have the technical means necessary to issue and receive structured electronic invoices may be subject to an administrative fine:<\/p>\n These amounts reinforce the importance of having not only a tool capable of managing electronic invoicing, but also operational processes that ensure the continuity, monitoring and processing of incoming and outgoing flows.<\/p>\n Since 1 January 2026, the companies concerned must be able to issue and receive structured electronic invoices. The challenge is now less about preparing for the transition than about managing the new flows operationally.<\/p>\n<\/blockquote>\n Belgium relies on the decentralised PEPPOL network for the exchange of structured B2B electronic invoices. But what does this mean in practical terms for your business?<\/p>\n PEPPOL (Pan-European Public Procurement On-Line)<\/strong> is a secure network enabling the standardised and automated exchange of electronic business documents \u2013 including invoices.<\/p>\n In practice, Peppol enables structured electronic invoices to circulate according to common standards, with a high level of interoperability and the possibility of automating a large part of exchanges and processing.<\/p>\n<\/blockquote>\n To support the implementation of electronic invoicing, it is important to understand the Belgian standards, formats and regulatory obligations. These elements ensure secure flows, guarantee compliance and anticipate future requirements.<\/p>\n These technical elements reinforce your expertise, secure your exchanges and ensure compliance with Belgian and European obligations.<\/p>\n<\/blockquote>\n Please note: unlike B2B electronic invoicing, e-reporting is not an operational obligation that came into force on 1 January 2026. The project is envisaged for a later phase, with an announced target around 2028, but it still needs to be transposed into Belgian law.<\/p>\n Beyond European standards, several elements are strictly specific to Belgium and must be carefully managed within your ERP and invoicing processes.<\/p>\n Company number and VAT identification: Belgian VAT particularities:<\/strong> Electronic archiving:<\/strong> Language requirements:<\/strong> These Belgian-specific elements make compliance more than a simple technical adaptation \u2014 they require careful alignment between legal, tax and ERP configurations.<\/p>\n<\/p>\n Belgium is not alone: several European countries are progressively introducing mandatory electronic invoicing.<\/p>\n The French Electronic Invoicing Reform (RFE)<\/a> is entering its operational phase in 2026. All companies concerned must be able to receive electronic invoices from 1 September 2026. The obligation to issue electronic invoices also starts on this date for large companies and ETIs, while SMEs and micro-enterprises have a deadline of 1 September 2027. The system is based in particular on accredited platforms and also includes an e-reporting component.<\/p>\n In summary, electronic invoicing is now part of a European transformation of commercial exchanges and taxation, while remaining governed by obligations and timetables specific to each country.<\/p>\n<\/blockquote>\n Although electronic invoicing originated as a regulatory obligation, it is now an operational and strategic tool for your organisation. By standardising and structuring data, it simplifies processes, reduces the risk of errors, and improves visibility over financial and tax flows. Its tangible benefits include:<\/p>\n In summary, electronic invoicing is not merely a legal constraint; it becomes a tool for efficiency and performance management.<\/p>\n<\/blockquote>\n Electronic invoicing relies on precise and consistent data: The reform impacts:<\/p>\n It is essential to anticipate these changes in order to avoid operational disruptions.<\/p>\n If your company works with international partners, it is also necessary to take into account other ongoing reforms, such as electronic invoicing in France.<\/p>\n Having a tool capable of handling multiple regulatory frameworks<\/strong> becomes a key challenge.<\/p>\n Your ERP must therefore be able to manage:<\/p>\n Since 1 January 2026, the challenge is no longer only to prepare for the transition, but to secure and optimise electronic invoicing flows on a daily basis.<\/p>\n Structured electronic invoicing is now an operational reality in Belgium: since 1 January 2026, it has been mandatory for almost all relevant B2B transactions between companies subject to VAT. At Deveho, we support companies in:<\/p>\n\n
Business-to-business transactions generalisation since January 2026<\/h3>\n
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Since the obligation came into force: key points to consider<\/strong><\/h3>\n
A period of tolerance at the beginning of 2026<\/strong><\/h4>\n
The specific case of self-billing<\/strong><\/h4>\n
Penalties for lack of technical means<\/strong><\/h4>\n
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Concrete implementation timeline<\/h3>\n
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\n Date<\/td>\n Obligation<\/td>\n Scope<\/td>\n<\/tr>\n \n 1 March 2024<\/td>\n Mandatory electronic invoicing for B2G<\/td>\n Public tenders published after this date<\/td>\n<\/tr>\n \n 1 January 2026<\/td>\n Mandatory structured B2B electronic invoicing<\/td>\n Mandatory structured B2B electronic invoicing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n
Key Advantages<\/h3>\n
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What This Changes for Your Business<\/h3>\n
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1. Standards and Formats<\/h3>\n
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2. Belgian Regulatory Points<\/h3>\n
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3. Practical Glossary<\/h3>\n
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4. Specific Belgian Legal and Tax Requirements<\/h3>\n
\n<\/strong>The identification data of the supplier and customer must be correctly entered on the structured invoice, including VAT identification numbers where required. The quality and mapping of this data in the ERP are essential to ensuring the compliance of the flows.<\/p>\n
Certain VAT regimes require specific handling in structured invoices, including:<\/p>\n\n
Accurate VAT code mapping in your ERP is therefore essential to avoid inconsistencies during tax audits.<\/li>\n<\/ul>\n
\nThe rules for archiving electronic invoices remain broadly the same as those for paper invoices. Companies must guarantee the authenticity of the origin, the integrity of the content and the readability of invoices throughout their retention period. The general retention period is seven years from 1 January of the year following the date of issue, with longer periods possible in certain specific cases.<\/p>\n
Belgian language requirements may also apply to commercial documents and invoices depending on the context and the territory concerned. In a multilingual environment, it is therefore important to check the language required for mandatory information and to ensure that invoicing systems can manage the necessary information in several languages.<\/p>\nFrance:<\/h3>\n
Other European Countries:<\/h3>\n
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Implications for Your Business:<\/h3>\n
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Data Quality<\/strong><\/h3>\n
\ncustomers, products, VAT rates, payment terms, legal references.
\nAn upgrade of master data is often required.<\/p>\nAdaptation of Internal Processes<\/h3>\n
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The International Environment<\/strong><\/h3>\n
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\nBeyond being a regulatory requirement, it can become a genuine performance lever for making processes more reliable, reducing manual processing and improving the management of financial flows.<\/p>\n\n