Arratech Blog

The Peppol network is gradually evolving from a document exchange framework into infrastructure capable of supporting machine-coordinated commercial processes across organizations and jurisdictions.

That may sound abstract at first. But if we look at where the network seems to be heading, particularly through the transition from Message Level Response (MLR) to Message Level Status (MLS), an interesting picture starts to appear.

On 23 June 2026, HMRC's Tax Update 2026 confirmed Peppol as the core interoperability network for the UK's e-invoicing mandate, settling a key open question for businesses and software vendors. This post breaks down what the decision means, the decentralised four-corner model, the confirmed 1 April 2029 scope for B2B and B2G VAT invoices, and what still sits open ahead of the Budget 2026 roadmap, including the emerging PINT UK format. The work of getting ready for the mandate starts now.

OpenPeppol published the SML Insourcing Plan for 2026 and by end of May all Peppol Certified Service Providers must have made change to new address. The main point is simple. This is an infrastructure move. It is not a rewrite of the Peppol network. It is not a new way to exchange documents.

The Peppol network is often described as a “four-corner model”, but what does that actually mean in practice? This article breaks down the Peppol transport model in a simple way, showing how electronic invoices move securely from sender to receiver through trusted Access Points.

EN 16931 is being updated ERP providers and software vendors in the Peppol network need to be ready.

The revised EU e-invoicing standard is expected mid-2026, bringing stricter validation rules, expanded data requirements, and new implications for Peppol and e-invoicing platforms. Read the blog to understand what’s changing and how to prepare.

The UK’s mandatory e-invoicing mandate starts on 1 April 2029, but software vendors need to prepare now. Businesses that invoice UK companies should assess Peppol readiness, Access Point and SMP infrastructure, and build-vs-buy options well ahead of compliance deadlines.

The days of emailing a PDF invoice to French business partners are numbered. We break down the mandate, the five-corner model, and how to get compliant before the deadline.

As tax reporting moves into real time, identity can no longer be assumed. In a world of continuous transaction controls and outsourced compliance, tax authorities must instantly know who is submitting a report, on whose behalf, and under what authorization. Without verifiable identity, automation breaks and trust with it.

The Peppol network is a decentralized, international e-invoicing infrastructure using a 4-corner model. This allows organizations to exchange e-invoices through certified service providers without needing bilateral agreements between senders, receivers, or providers. It ensures interoperability and avoids vendor lock-in. Traditional e-invoice (VAN) networks rely on bilateral agreements, creating a fragmented ecosystem.