Structured e-invoicing is gradually becoming the norm for business-to-business exchanges across Europe. For Belgian SMEs, understanding the essentials now avoids a last-minute scramble to comply.

L'essentiel

• A structured e-invoice is not a PDF: it is a machine-readable file.
• The Peppol network relies on the UBL 2.1 format (Peppol BIS) for interoperability.
• The transition is best prepared ahead: tool choice, connection, send tests.

Why e-invoicing is becoming widespread

The goal is twofold: reduce administrative burden and fight VAT fraud. A structured invoice flows from software to software, with no re-keying, which cuts errors and speeds up payments.

The role of the Peppol network

Peppol is an international network that lets businesses exchange commercial documents in a common format. You send an invoice once; the network routes it to the recipient's access point.

1

common format

Peppol BIS (UBL 2.1)

4 corners

exchange model

sender, access point, access point, recipient

0

re-keying

automatic end-to-end processing

Steps to get compliant

1. 1

   Assess your current state

   Week 1

   Map your invoicing flows and your current software.

2. 2

   Pick a Peppol-connected solution

   Week 2

   Check the tool sends and receives Peppol BIS invoices.

3. 3

   Test sending and receiving

   Week 3

   Issue a first test invoice to a partner.

4. 4

   Roll out gradually

   Weeks 4+

   Move your clients in batches and track delivery receipts.

Preparation checklist

Before your first Peppol invoice

• Company number verified

  Your identifier must be correctly registered.

• Tool connected to an access point

  Directly or through a certified provider.

• Client data up to date

  Recipients' Peppol identifiers on file.

• Successful send test

  A delivery receipt confirms the transmission.

PDF by email or Peppol invoice?

The best time to switch to e-invoicing is before you are forced to in a hurry.

Frequently asked questions

What is the Peppol BIS format?

Peppol BIS is a structured e-invoice format, based on the UBL 2.1 standard, exchanged over the Peppol network. It lets software process invoices automatically without manual data entry.

Is a PDF invoice an electronic invoice?

No. A PDF is a human-readable image, not a structured file. A regulatory e-invoice is a structured file (such as UBL) that software can read and process automatically.

Do I need to change accounting software?

Not necessarily. Many tools, including YouInv, generate and send Peppol invoices directly. What matters is that your tool is connected to the Peppol network through a certified access point.

Ready to switch to e-invoicing?

YouInv generates and sends your Peppol BIS invoices in a few clicks, without changing your habits.

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