Hello, @Pieter
Can I make a few small comments…
But as a Belgian entrepreneur, I need to send my invoices via the Peppol network as of 2026.
This is not entirely correct!
The law states:
As of 1 January 2026, all Belgian enterprises liable to VAT will have to use structured electronic invoices in their transactions with each other.
→ If you agree with your customer(s) to exchange structured invoices, in UBL (EN 16931) format, (e.g. via e-mail or via federation) then there is no problem.
IP is currently a software that only creates and sends invoices and cannot receive invoices to process further.
Connecting from IP to Peppol is currently not possible because IP V1 does not have an API.
In IP V2, a rest API would be provided.
Creating and sending Peppol invoices (via e-mail) in IP v1 will be possible but makes no sense because you cannot connect to the Peppol network anyway.
I suspect that other (more competitive) prices and pricing models will be launched next year. 