You are a company
How do you send e-invoices to administrations?
How to send electronic invoices?
Your invoices must be sent in XML format and sent directly to your customer via the Peppol network.
Please note: invoices sent by email and/or in other formats (pdf, xls, etc.), are not considered electronic invoices and cannot be accepted by the administration.
There are several ways to send your electronic invoices, depending on your invoicing system:
If you issue a lot of invoices, you probably have an ERP (Enterprise Resource Planning) system. In this case, we advise you to get in touch with your contact person at your ERP provider, who will explain the access requirements and guide you through the basic settings you need to configure to send electronic invoices.
Check with your supplier or online to find out if your software supports sending electronic invoices via the Peppol network and to learn how to do so.
Does your software not support invoicing via the Peppol network?
You have two options:
- Choose another software package. Here you will find a Opens in new windowlist of accounting software providers that allow you to send electronic invoices via the Peppol network.
- Enter your invoice manually via the Mercurius online portal (more information below).
If you send few invoices to public administrations, you can enter your invoices manually (and free of charge) via the Mercurius online portal:
To access the portal and send your invoices:External link
- Opens in new windowAccess the Mercurius portal.
Log in to the portal :
Are you the legal representative of your company?
Yes: you should then have direct access to the Mercurius portal by default.
No: request access via the Opens in new windowonline form ‘Request for role’.
For more information on how to access the Mercurius portal: Opens in new windowclick here or contact the Opens in new windowMercurius helpdesk directly.
Enter your invoice in Mercurius
Once logged in, you can manually enter the various fields of your invoice (customer details, invoice number, due date, etc.) and attach an appendix (PDF, Word, etc.).
Click on ‘Send’ and your invoice will be automatically sent to your customer in electronic format.
Check the status of your invoice
For any information regarding the status of your invoice, please visit the Opens in new windowMercurius help page or contact your client's accounting department directly.
Useful documents
User guide on electronic invoicing
Contact details for Brussels authorities for sending electronic invoices
Frequently asked questions
Invoices sent to public administrations must be sent in electronic format, i.e. via the Peppol network and in XML format. An invoice sent by email in PDF format is not considered an electronic invoice.
There are various options available depending on the system you use to generate and send your invoices.
You can find more information in our Opens in new windowuser guide.
Public administrations do not have VAT numbers.
To send electronic invoices, you can use either the administration's company number or its Peppol reference number.
You can find the contact details (name, company number, Peppol ID) of the main public administrations in Brussels here: Opens in new windowcontact details of Brussels administrations.
If you cannot find an administration in the list, please contact your contact person within that administration directly, who will be able to provide you with the information you are looking for.
To access the Mercurius platform, you must be the legal representative of your company or have been authorised to send invoices on behalf of your company. Opens in new windowMore information here
If you have any other questions, please contact the Opens in new windowMercurius support service of the SPF BOSA directly.
For any questions regarding the Mercurius online platform (access, sending an invoice, technical issues, etc.), please refer to the Opens in new windowfrequently asked questions or contact the Opens in new windowSPF BOSA support service directly.
Invoices sent to Belgian public administrations must be sent electronically, i.e. via the Peppol network and in XML format.
There are various options depending on the system you use to generate and send your invoices.
You can find more information in our Opens in new windowuser guide.
If your company is based abroad (and does not have a Belgian VAT number), you cannot manually enter your invoice on the Mercurius portal, which is only available to companies with a Belgian company number.
You will therefore need to find another accounting software that is compatible with sending electronic invoices via the Peppol network: Opens in new windowList of suppliers
To find out whether your invoice has been received, check the payment status of your invoice or send a payment reminder, please contact your contact person or your customer's accounting department directly.
According to Belgian regulations, invoices sent to public administrations must be sent electronically, i.e. via the Peppol network and in XML format.
An invoice sent by email in PDF format is not considered an electronic invoice.
There are various options available depending on the system you use to generate and send your invoices.
You can find more information in our Opens in new windowuser guide.
Need help?
- A question about the Mercurius portal, how to access it or how to enter an invoice?
The Opens in new windowMercurius Helpdesk is there to guide you. - A question about the status of your invoice or paying your invoice?
Your customer's accounting department will be best placed to advise you. - A question about electronic invoicing? See our Opens in new windowguide on electronic invoicing.