As of March 2026, Mollie can send e-invoices to customers based in Belgium via the Peppol network. To receive e-invoices from Mollie, you must first be registered as a recipient on the Peppol network.
What is e-invoicing?
E-invoicing (electronic invoicing) is a method of receiving invoices digitally in a structured data format via a certified network (such as Peppol, in Belgium). Unlike a PDF, e-invoices are processed automatically by accounting and ERP systems, reducing manual data entry and errors.
How can I register my business on the Peppol network?
To receive e-invoices via Peppol, your organization must be registered as a recipient. Many accounting and ERP platforms support e-invoicing directly. Check your software settings for this option. Alternatively, if you work with an accountant, they may be able to register your organization on your behalf.
Activating e-invoices in your Mollie account
Once you are registered on the Peppol network, you can enable e-invoicing in your Mollie account. Important: this functionality is only available for customers based in Belgium.
- Go to Organization Settings.
- Note: Only team members with an Admin or Owner role can access this page.
- Find the Receive Mollie's E-invoices toggle.
- Activate the setting and press "Save".
If we cannot find your organization on the Peppol network using the registration number or VAT number from your Mollie account, you will see an error message. Please complete your Peppol registration before enabling this setting.
- Note: Self-billing invoices require additional Peppol configuration. See 'Good to Know' for details.
What happens after activation?
Once activated, you will receive an electronic version of your future invoices and credit notes via the Peppol network. Invoices are generated up to the third business day of the month.
You will continue to have access to a PDF version of your invoice, available to download via the Mollie Dashboard under Reports > Invoices. The PDF version includes additional details about your fees, such as turnover and multi-currency rates, which are simplified in the e-invoicing version.
Good to know
Avoiding duplicate invoice entries
- The invoice PDF file will be automatically attached to your Peppol e-invoice. If you have the Receive Mollie's PDF invoices setting enabled, PDF file will also be attached to your notification email, which may lead to duplicate entries in your accounting system.
- To prevent this, we recommend disabling the Receive Mollie's PDF invoices via email setting in your Organization Settings when you enable e-invoicing.
Why is my e-invoice data less detailed?
- You may notice that some product lines on your invoice list a Quantity of '1' and a Unit Price equal to the Total Amount.
- This is by design and occurs for product lines that aggregate multiple fees, especially in case of variable rates, where each transaction has a different variable fee. This aggregation can create rounding differences between the line-calculation formula (Item Price x Quantity) and the correct total amount without VAT.
-
To ensure the final Total Amount and
VAT are calculated correctly, we apply a necessary
adjustment:
- The Quantity is set to 1.
- The Unit Price is set to the line's Total Amount (excluding VAT).
- This method guarantees the amounts are accurate. For a detailed breakdown of turnover, variable rates, variable fees and multi-currencies, please refer to the PDF version of your invoice. The PDF is automatically attached to your e-invoice.
Self-billing invoices for partners
- If you receive self-billing invoices from Mollie (for example, for partner commissions), additional setup is required. Self-billing invoices use InvoiceTypeCode 389 in the Peppol network.
- Before activating e-invoicing in your Mollie account, ensure that your Peppol setup supports receiving InvoiceTypeCode 389 documents. Contact your Access Point provider or check your accounting software settings to enable this document type. Once configured, follow the activation steps above.
- As part of the self-billing arrangement, please remember not to issue your own invoices for transactions covered by Mollie's self-billing invoices to avoid duplicate entries.
Paying your invoice
- Nothing changes regarding how your invoices are paid. If your invoice has an amount due, find the payment instructions on the PDF version of your invoice.
Send e-invoices to your own customers
- Want to send e-invoices to your own customers? With Mollie Invoicing, you can create and send e-invoices directly. Learn more about sending e-invoices with Mollie Invoicing.