How to set up e-invoicing with Xerius?

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If you have already switched to e-invoicing and want to receive your social contributions as e-invoices every quarter, you can now receive payment requests from Xerius as e-invoices. In this guide, you’ll learn how to set this up.

Quick guide: receiving e-invoices from Xerius

Xerius supports e-invoicing through the Peppol network. This means that as a self-employed individual, whether in a sole proprietorship or a company, you can now automatically receive your social contributions in your invoicing software as e-invoices.

Here’s how to set it up:

• Register for Peppol: first, register for free with Peppol. Read here how to do this. Already registered? Go to the next step.
• Working with an accountant? If your accountant uses Peppol, they can direct your Xerius invoices straight to your accounting system by setting it up in their Xerius Desk.
• Receiving E-Invoices in Your Own Invoicing Software? Contact your representative at Xerius.

What are e-invoices?

E-invoices are not the same as digital invoices. A PDF of an invoice is a digital invoice but not an e-invoice. Starting in 2026, all Belgian self-employed individuals will be required to switch to e-invoicing.

E-invoices consist of specific XML files sent in UBL format via the Peppol network. These UBL standards ensure that all necessary information is included on the invoice and that it is readable by accounting or invoicing software.

This invoicing software can create, receive, and automatically process e-invoices. If desired, you can also set up automatic payments for the invoices.

💡Accountable Tip: You can use Accountable to receive and send e-invoices via the Peppol network, even in our free plan. Try Accountable now.

How to register with Peppol

To activate e-invoicing via Peppol with Xerius or another social secretariat, you need invoicing or accounting software. After that, you need to register with Peppol. This registration is free and straightforward.

Here’s how to do it with Accountable:

1. Log in: access your account via the website or app.
2. Open the menu: choose “settings.”
3. Select Peppol: click on Peppol (e-invoicing).
4. Sign up: register to receive e-invoices via the Peppol network.

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

What happens next?

Once your registration is complete, you can automatically receive e-invoices from your social security fund and other suppliers that support e-invoicing. Your e-invoices will then appear automatically in the expenses screen in Accountable.

However, not every social counter will automatically send you an e-invoice. For some, like Xerius, you need to activate it yourself, as mentioned above.

Read more about:

• Receiving e-invoices from Partena
• Receiving e-invoices from Securex
• Receiving e-invoices from Liantis

If you have any questions about this topic, please reach out to us. We are here to assist you!

Author - 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.

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