How to receive e-invoices from Luminus?

Starting 2026, all invoicing between Belgian companies has to be done through the Peppol network. If you are already registered with Peppol, you can start receiving your utility bills as e-invoices. With Luminus, it's quite simple. You just need to fill in an online form. This simple guide explains how to do this.

What do you need to do to receive e-invoices from Luminus?

It's very straightforward: as a business customer with Luminus, you can activate e-invoicing by filling out this form. However, be sure to register with Peppol first. Here's how you do it.

Once activated, your invoices will automatically appear in your invoicing software. Additionally, you’ll still receive an email each time your energy invoice is ready, or you can opt to receive one email containing all your invoices.

What are e-invoices?

An e-invoice is not the same as a PDF or a scanned invoice. E-invoicing specifically involves XML files sent in the UBL format via the Peppol network. Thanks to these UBL standards, all the necessary information is included on the invoice, allowing accounting or invoicing software to read it.

Such invoicing software can send, receive, and automatically process e-invoices. In some cases, you can also choose to have the invoices automatically paid through the software.

💡Accountable tip: with Accountable, you can register for free with Peppol to send and receive e-invoices via our app. This is available to all Belgian self-employed professionals, even on the free version. Try Accountable now.

How to set your business up for e-invoicing

To receive e-invoices from your energy supplier or other recurring suppliers, you’ll need suitable invoicing or accounting software. Then, you can register for free with Peppol through this software, such as Accountable.

Does your supplier not yet use e-invoicing? Let us know, and we’ll contact them to help move the market forward and save you time.

With Accountable, you can register with Peppol by following these steps:

1. Log in via the website or app.
2. Open the menu and choose "Settings".
3. Select Peppol (e-invoicing).
4. Register to receive e-invoices via the Peppol network.

It takes a few minutes for your registration to be complete. Not sure if it worked? Check whether your company is listed in the Peppol Directory.

Questions about this? Drop us a message, and our Tax Coaches will be happy to assist you.

Valesca Wilms

As content marketing lead at Accountable Belgium, Valesca writes about freelancing, self-employment, and taxes based on her own experience as a freelancer.