How to integrate Peppol into your software

In 2026, structured B2B e-invoicing will become mandatory in Belgium. Other countries will follow. Peppol is the chosen network to harmonize exchanges. Whether you are complying with legal requirements or modernizing your invoicing processes, integrating Peppol is now THE priority for many companies, software vendors and system integrators.

This guide explains what Peppol really is and shows you how to integrate it into your software quickly, clearly and sustainably, relying on a clear architecture, real-world use cases and network best practices.

Content

What you will find in the guide:

• A simple explanation of the Peppol ecosystem and its components
• Upcoming regulatory requirements, country by country
• Typical architectures (SaaS and On-Premise)
• Best practices to register clients, send documents, and avoid rejections
• Real-world use cases (cloud ERP, accounting software, migration from another Access Point…)

Who is it for?

This document is intended for:

• CTOs, Product Managers, and technical decision-makers planning to include Peppol in their roadmap
• Backend developers, DevOps, and software architects in charge of APIs
• Accountants, compliance officers or billing managers impacted by new legal requirements