Peppol Network Growth 2026: Belgium Becomes the World’s Largest Peppol Country
Peppol network growth 2026 has reached a scale few predicted even a year ago. The global Peppol network now counts more than 4.5 million registered participants in the OpenPeppol SMP directory, spread across more than one hundred countries. Belgium stands out as the clear outlier: six months after its B2B e-invoicing mandate took effect on 1 January 2026, the country has surpassed 2 million registrations, representing 45.8 percent of the entire global network. For Dutch and Belgian businesses, IT decision-makers, and accountants, these Peppol network growth 2026 figures are more than a statistical curiosity. They show how quickly a legal mandate can tip a network into mainstream adoption, and what that means for your own connection strategy.
Why these figures matter for your organization
Anyone still treating e-invoicing as a future concern is falling behind the facts. The Peppol network growth 2026 data shows that the network is no longer an early-adopter phenomenon but has become the de facto infrastructure for B2B invoicing across a growing part of Europe. For Dutch companies trading with Belgian or French partners, this means the odds are increasing that a trading partner already communicates via Peppol, or expects you to do so soon. For Peppol Service Providers, these figures are a concrete measure of market momentum, and for accountants and advisors, they provide solid grounds for advising clients not to delay their connection.
The numbers at a glance
According to the most recent measurement of the OpenPeppol SMP directory (methodology: OpenPeppol End User Statistics Reporting), the global Peppol network counts 4,523,020 registered participants. This is a substantial jump from the 1.4 million participants previously cited as the benchmark for network growth since 2019. The country breakdown shows a clear leader:
- Belgium: 2,072,529 participants (45.8% of the global total)
- France: approximately 890,000 participants, largely driven by the upcoming French e-invoicing mandate via Plateformes Agréées
- Australia: approximately 430,000 participants
- The Nordic bloc (Norway, Sweden, Denmark, Finland) combined: approximately 616,000 participants, as early but non-mandated Peppol adopters
- Germany: approximately 10,500 participants, a figure that reflects the phased and not-yet-Peppol-mandated German e-invoicing approach
For comparison: in December 2025, Belgium’s count stood at 940,354 participants. By the end of January 2026, Belgium became the first country ever to pass 1 million registered receivers. Within less than half a year, that number more than doubled again. This acceleration in the Peppol network growth 2026 figures is largely attributable to the legal mandate, but not exclusively.
Why Belgium dominates the network
Three factors combine to explain why Belgium stands out so sharply in the Peppol network growth 2026 figures.
The mandate itself. Since 1 January 2026, Belgium has operated a 4-corner Peppol model as the legal basis for B2B e-invoicing between all VAT-registered businesses. A 5-corner model, in which invoicing data is also automatically reported to the tax authorities, is planned as a 2028 ambition. This mandate has no sector exemptions, laying the groundwork for mass connection.
Multiple ID schemes per company. Many Belgian businesses are registered under both their KBO/CBE enterprise number (scheme 0208) and their VAT number (scheme 9925). This means the same company is sometimes counted twice, or even three times, in the directory, inflating the absolute count without a proportional increase in unique organizations.
Bulk registration by banks and accounting platforms. Major Belgian banks and accounting platforms registered their entire client base in bulk with the Peppol network. This explains why adoption was not limited to a compliance checkbox but translated into actual large-scale network participation.
What the document type breakdown shows
Within the Peppol network growth 2026 data, it is also visible which document types are most widely supported. Peppol BIS Billing UBL Invoice V3 tops the list with nearly 3.82 million registered receivers, closely followed by its corresponding credit note variant. This confirms that BIS Billing 3.0 is the de facto dominant standard for cross-border e-invoicing on the Peppol network. Notably, the Belgian UBL.BE profile, a national extension of EN 16931, does not appear near the top: Belgian legislation does not permit this profile for actually sending mandatory B2B invoices. The remaining UBL.BE registrations are largely leftover endpoints from service providers that have not yet fully migrated their SMP entries to the mandatory BIS Billing 3.0 format.
Germany, the UK, and the rest of Europe in perspective
The Peppol network growth 2026 figures also make clear how uneven European adoption still is. The DACH region (Germany, Austria, Switzerland) combined has fewer Peppol registrations than a single Belgian postal code district. Germany has had a receiving obligation for e-invoices since January 2025, but the sending obligation only takes effect from 2027 (large businesses) and 2028 (all others), and Peppol is not the mandated transport network in that process. Southern European countries such as Italy operate their own centralized clearance systems like SDI, meaning their Peppol figures mainly reflect cross-border capability rather than full domestic volume.
The United Kingdom is now also joining the Peppol user base: at the end of June 2026, the UK government confirmed that Peppol will serve as the core infrastructure for its upcoming e-invoicing mandate from April 2029. That decision will become visible in UK participant numbers over the coming years, but is still at a very early stage compared to Belgium’s figures.
What does this mean for Dutch and Belgian businesses trading internationally?
The Netherlands currently has no general B2B e-invoicing mandate; the EU-wide ViDA directive (VAT in the Digital Age) provides for a mandate covering cross-border B2B transactions from 2030. Still, the Peppol network growth 2026 figures are relevant for Dutch businesses too. A growing share of your Belgian and French trading partners is now legally required to invoice via Peppol or, in France’s case, via a Plateforme Agréée. Dutch suppliers still working exclusively with PDF invoices risk finding that procurement departments at Belgian clients increasingly favor suppliers who are already Peppol-compatible, even when this is not formally required of the Dutch party.
Early connection to the Peppol network also offers a practical advantage: the same infrastructure you set up now for Belgium or France is directly reusable once the ViDA mandate applies to Dutch cross-border transactions from 2030 onward. The Netherlands Peppol Authority (NPA) keeps the technical specifications for SI-UBL 2 and Peppol BIS 3 up to date in this context.
What the growth means for Peppol Service Providers
The Peppol network growth 2026 figures are not only relevant to businesses that still need to connect; they are also reshaping the market for Peppol Service Providers themselves. A network of 4.5 million participants demands scalable infrastructure, reliable uptime, and multi-country support from a single integration. Service Providers focused only on the Belgian or Dutch market are now facing competition from providers that also offer French Plateformes Agréées connectivity, German XRechnung support, and UK Peppol integrations within their portfolio. For buyers of e-invoicing services, multi-country support is becoming an increasingly weighty selection criterion, alongside price and ease of integration with existing ERP systems.
The quality of the underlying registration data is also becoming more important. Now that it is clear part of the Belgian figures are inflated by duplicate ID schemes and leftover UBL.BE endpoints, service providers would do well to clean up their own SMP registrations. An accurate, up-to-date registration prevents invoices from being routed to an outdated or unsupported document profile, which in practice can lead to processing errors and delayed payments.
Looking ahead: what to expect in the second half of 2026
With France’s sending and receiving obligation taking effect on 1 September 2026 for large businesses and ETIs, the next major jump in the Peppol network growth 2026 figures is easy to predict. Analysts point out that France, with roughly 890,000 current participants, could potentially see an acceleration comparable to what Belgium demonstrated in early 2026, although French connectivity via Plateformes Agréées works technically differently from Belgium’s direct Peppol connection. For Dutch and Belgian businesses with French trading partners, this is a concrete reason not to postpone their own French connection strategy until the final quarter of 2026.
Practical checklist: assess your own Peppol readiness
- Map your customer and supplier base: what percentage of your Belgian and French relationships already invoice via Peppol or a Plateforme Agréée?
- Check your current Peppol Service Provider: does it support BIS Billing 3.0 as both a sending and receiving format, and can you connect to multiple countries from a single integration?
- Avoid outdated profiles: if you operate in Belgium, verify that your outgoing invoices actually use BIS Billing 3.0 rather than the non-permitted UBL.BE profile.
- Calculate the business case: weigh the cost of voluntary connection against faster payments, less manual processing, and a stronger competitive position with Belgian and French clients.
- Plan for ViDA 2030: investments you make now for Belgium or France are largely reusable for the EU-wide mandate taking effect from 2030.
Use the comparison tool on Peppol.nu to compare Peppol Service Providers by supported countries, document formats, and pricing. Also read our article on the Belgian e-invoicing obligation 2026 for the full background behind the figures in this article.
Conclusion
The Peppol network growth 2026 figures confirm that e-invoicing via Peppol has tipped in Europe from exception to norm, with Belgium leading the way as proof that a clear legal mandate can drive mass network adoption within a matter of months. For Dutch and Belgian businesses still weighing the timing of their own Peppol connection, these figures show that waiting is an increasingly less neutral choice.
Sources
- e-invoice.be: Peppol statistics 2026, Belgium leads with 2 million participants
- VATupdate: Belgium becomes the first country to reach one million registered Peppol e-invoice recipients
- OpenPeppol: End User Statistics Reporting specification
- OpenPeppol: UK Government Announces Peppol as Core Interoperability Network
- Netherlands Peppol Authority: News
