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Peppol explained simply | Milient

Written by Glenn Viaene | 8 Jul 2025

Hearing about Peppol everywhere? That’s no coincidence – and it’d be a shame to miss out.

Digital transformation is no longer optional—especially when it comes to invoicing. With the rise of Peppol (Pan-European Public Procurement Online) across Europe, businesses must adapt to remain competitive and compliant. From faster payments and reduced errors to a generous tax deduction in Belgium, Peppol offers more than just compliance—it presents a real opportunity.

In this article, you’ll learn:
  • What Peppol is and how it works
  • The key benefits for businesses
  • How to claim a 120% tax deduction in Belgium
  • Why Peppol-compatible software like Pluriell makes the transition easier

What is Peppol?

A European standard for secure electronic invoicing

Peppol is a network developed by the European Commission to standardise the exchange of electronic documents—primarily invoices—between companies and public authorities. The goal? To simplify transactions and streamline processes through a shared digital infrastructure.

By using a standardised format, UBL (Universal Business Language), Peppol ensures automatic and reliable processing of key information: amounts, dates, sender details, etc.

 

How does Peppol work?

From connecting to the network to automating your invoicing

To use Peppol, a business must register with an authorised access point provider, which connects it to the network and enables secure exchange of electronic invoices in UBL format.

This system eliminates manual data entry, reduces the risk of errors, speeds up processing, and gives better control over invoicing workflows.

 

Why switch to Peppol?

4 key benefits for your business

1. Faster processing

Thanks to standardisation and automation, invoices are processed more quickly. The result: faster payments and simplified cash flow management.

2. Fewer errors

By eliminating manual input, Peppol reduces data entry errors and omissions—a major plus for compliance and accounting accuracy.

3. Greater security

Data exchanged via Peppol is encrypted and protected from unauthorised access or tampering.

4. Improved financial visibility

Integration with your accounting systems provides real-time tracking of transactions and supports strategic decision-making.


Tax deduction in Belgium: 120% on Peppol tools

An opportunity to seize before 31 December 2027

To encourage adoption of electronic invoicing, the Belgian government is offering a 120% tax deduction on investments in Peppol-compatible invoicing software and associated consultancy services.

Eligible costs include:

  • Subscriptions to invoicing software compatible with Peppol (like Pluriell)
  • Consultancy fees for setting up e-invoicing

⚠️ Depreciation costs and accounting software not related to Peppol are not eligible.

 

Milient: a Peppol-compliant ERP

A complete tool to simplify your electronic invoicing

Milient’s Project Flow is a lightweight ERP designed for small and mid-sized project-driven businesses. It is fully compatible with the Peppol network, allowing users to send and receive e-invoices that comply with European standards.

But Milient goes beyond invoicing. It also includes:

  • Project and budget management
  • Team and resource tracking
  • Financial control and reporting
  • All in one clear, modern system

 

Are you ready for the 2026 requirement?

Prepare for mandatory e-invoicing in Belgium

As of 2026, electronic invoicing will be mandatory for B2B transactions in Belgium. To prepare, businesses should:

  • Check whether their invoicing software is Peppol-compatible
  • Plan for updates or a tool switch if needed
  • Coordinate with clients and partners to align on Peppol use

The sooner you prepare, the smoother the transition will be.

 

In summary

Adopt Peppol and benefit from its operational and financial advantages

Peppol isn’t just a technical requirement—it’s an opportunity to modernise your invoicing workflows. By reducing errors, accelerating payments, and securing exchanges, it helps drive efficiency and transparency.

With Pluriell, you get a complete Peppol-compliant tool to support your transition—while also taking advantage of Belgium’s attractive tax incentive.

👉 Learn how Pluriell can support your switch to e-invoicing and help you manage your projects more effectively. Book a call with our team