E-Invoicing Exchange Summit - Berlin, Sep 30 - Oct 02, 2026

This workshop presents the annual research outcomes of the International Observatory on eInvoicing of Politecnico di Milano. The session will explore the latest global developments shaping eInvoicing, from new regulatory mandates to evolving market strategies and operational impacts. Together, we will analyse the international momentum behind digital invoicing, compare country approaches, and discuss open questions related to the ViDA proposal. Institutional perspectives, expert insights, and real business experiences will be combined to understand how eInvoicing is transforming compliance, business processes, and digital services.

Johannes researches, organizes and runs knowledge and networking platforms that help the industry to benefit from new technologies and cope with changing legal and regulatory frameworks. His events make sure that all stakeholders learn, discuss and network with like-minded experts, practitioners and thought leaders. His main focus lies on E-Invoicing since 1999, carrying out the E-Invoicing Exchange Summits in Europe, Middle East, Asia-Pacific and the US, the E-Rechnungs-Gipfel in Germany, and the Swiss Payment Forum in Zurich.
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The original E-Invoicing “tornado” has evolved into a broader transformation towards Integrated Digital Trade, where invoicing, tax reporting, procurement, payments, and financial processes increasingly converge. Against this backdrop, companies are facing unprecedented regulatory complexity, while at the same time being presented with significant opportunities for automation, efficiency gains, and business transformation.

Digital compliance began as a response to regulatory transformation: new mandates, reporting requirements, and the growing need for fiscal transparency. But what started as compliance is rapidly becoming something far more significant. Structured transactional data, near real-time reporting, interoperability frameworks, and evolving global tax models are helping shape a new infrastructure of digital trust across businesses and public administration alike.
As initiatives such as ViDA accelerate this transformation, the conversation moves beyond technical implementation toward broader questions of collaboration, interoperability, inclusion, data quality, and long-term ecosystem design. This session explores how digital compliance is evolving from a legal requirement into a strategic enabler of trusted digital economies.
+ From obligation to infrastructure: how compliance became a strategic digital foundation
+ Global CTC expansion, ViDA, and the strategic challenge of interoperability
+ Public-private collaboration as a prerequisite for scalable transformation
+ Simplicity, SME accessibility, and ecosystem-wide adoption
+ Data quality as the foundation of trust, automation, and future intelligence

With the introduction of domestic E-Invoicing and real-time reporting initiatives across Europe, businesses and solution providers face a rapidly evolving compliance landscape. While ViDA aims to establish a harmonised framework for transaction reporting, significant differences are emerging in national reporting data sets, transmission models, and implementation approaches. We will explore how domestic mandates align with emerging EU requirements, compare reporting architectures and data transmission channels, examine the growing use of cross-checking across multiple tax and business data flows, and discuss the future role of invoice formats such as EN 16931 and EDIFACT.

Key discussion points:
+ Scope of national reporting data sets versus the future EU reporting model 
+ Different transmission channels and access models for tax reporting 
+ Cross-checking of e-invoicing, SAF-T, VAT reporting, goods movement and fiscalisation data 
+ Challenges for multinational businesses and service providers 
+ National and EU approaches to invoice formats, including the future role of EDIFACT

What mandatory E-Invoicing really means for enterprise-wide business processes
Mandatory E-Invoicing is transforming much more than invoice exchange. For Global Business Services organisations, it challenges long-established business processes that often operate outside the traditional AP workflow. Drawing on practical experience from a multinational company, this session highlights where organisations are likely to encounter unexpected challenges - from manual invoice reviews and T&E processes to multiple invoice channels and lifecycle reporting - and how these can be addressed without creating future compliance issues. Discuss practical lessons learned from early implementations and how your organisation prepares for upcoming ViDA and national e-reporting requirements.

+ How VAT IT operates as an e-invoicing service provider inside Concur workflows - where we sit, what we validate, and how we transmit invoices to meet local mandates
+ End-to-end flow across Concur Invoice and Concur Expense - showing how supplier e-invoices, employee expenses, and VAT checks connect into one compliant chain
+ What data and controls matter most for VAT and e-invoicing compliance - tax determination, invoice integrity, audit trails, receipt matching, and real-time reporting
+ Why the VAT IT + SAP Concur partnership reduces risk and manual effort - fewer exceptions, automated validations, faster approvals, and cleaner ERP handoff

E-Invoicing mandates continue to make deep inroads globally as a recognised method of delivering efficiencies, compliance, and growth. The drivers and methods differ from country to country, but for many the aim of closing the VAT gap to stem the seismic flow of funds out of the economy lost to fraud is a compelling one. In the UK, the mandate is being designed with both business efficiency and tax compliance in mind. While previously the UK remained behind the curve of global and European neighbours, with the announcement of a UK mandate from April 2029 with Peppol forming a cornerstone of it, things are about to change. In this session we’ll consider:
+ Likely announcements in the Roadmap at the autumn Budget
+ 4 corner v 5 corner – what to expect
+ The importance of the co-creation method of HMRC and DBT
+ Why Peppol, and its existing penetration in the UK
+ What businesses need to do to prepare
+ The stumbling blocks ahead and how to overcome them
+ The opportunities and expectations ahead

Ready to master the next wave of digital compliance? This isn't just about E-Invoicing anymore. Europe is moving quickly, with countries like Romania, Bulgaria, Poland, Lithuania, Hungary, Greece and Serbia, now requiring tax reporting of goods movement.
In this session we will dive into the world of mandatory e-Transport reporting. We'll cut through the noise to provide a comparison of a select few key mandates, showcasing the varying levels of transparency requested by tax authorities and how they integrate with the E-Invoicing tax authority portal.
Learn how to adapt your business to this new reality. Don't just react to change - get ahead of it.

This session will focus on innovation dynamics within the E-Invoicing ecosystem, highlighting how emerging technologies are reshaping solutions, processes, and business models.
It will showcase the evolution of provider offerings in areas such as automation, compliance, interoperability, and data valorisation, supported by concrete operational use cases. The session will also include a mapping of technological trends adopted by startups.
The panel will conclude with a startup pitching session, followed by a public vote to identify the most innovative proposal.

We will discuss how master data on parties and tax together with the validation framework deliver superior quality.

The Spanish electronic invoicing system is a hybrid model comprising private platforms and a public electronic invoicing solution (SPFE) managed by the AEAT. It features B2B e-invoicing and e-reporting with a hybrid choice and status transmission: "five-corner" private networks or the option to use the free AEAT platform.
What does this mean for you as an invoice issuer or recipient?