PEPPOL: Mandatory electronic invoicing in Belgium from 2026

As of January 1, 2026, all Belgian VAT-registered businesses will be required to issue and receive their electronic invoices via the structured PEPPOL (UBL) format. This B2B reform marks a significant step in the digitalisation of commercial exchanges and compels organisations to adapt their systems and processes.

KERN-IT becomes official PEPPOL integrator thanks to Digiteal

For over ten years, KERN IT has been developing custom digital cores and invoicing systems. We find that most companies lack standardised invoicing rules and therefore cannot rely on a generic ERP system to meet the 2026 requirements.

KERN IT is now officially a PEPPOL integrator. Built on our custom development expertise, we have established a partnership with Digiteal, a recognised PEPPOL Access Point, to guarantee our clients a reliable, sustainable, and integrated solution that is tailored to their existing business logic.

Invoicing : Key but rarely Standardised

Contrary to popular belief, the invoicing process is rarely a simple or uniform mechanism from one company to the next.
Many sectors use specific models, for example:

• Invoicing by hour, by intervention, or by service level
• Invoicing by board, by unit, by batch, or by production cycle
• Invoicing by weight, volume, or distance in logistics
• Invoicing by data consumption, by user, or by transaction in digital environments
• Hybrid models combining subscription and variable fees
• Multi-company or multi-tool invoicing within a holding structure

These business rules often represent a competitive advantage. Standard ERPs struggle to replicate them without workarounds, manual overload, or loss of flexibility.

This is why KERN IT develops custom invoicing systems, based on our by the technological modules within our KERNEL, capable of integrating all types of calculation rules.

KERN IT + Digiteal Integration: a Solid and Progressive Strategy

KERN IT has partnered with Digiteal, a recognised PEPPOL Access Point, to ensure reliable and sustainable compliance.
We integrate PEPPOL into our clients' tools while respecting their existing business logic.

We propose three complementary approaches based on your current architecture.

Three ways to integrate PEPPOL into your organisation

1. Direct Connection to your existing systems

This approach is suitable for companies that already have a structured ERP, CRM, or internal tool.

• Connection via API, webhooks, or exports
• Billing data extraction
• Conversion to UBL
• Transmission via PEPPOL

This ensures compliance while retaining your internal workflows.

2. Development of Scripts and Automations

This method is best suited for older systems or organisations that use multiple tools.

• Automated invoice collection
• Reliable conversion to PEPPOL format
• Management of complex business rules
• Centralisation of dispatches

This solution removes the need for manual recoding and brings stability to the billing process.

3. Invoice sending and tracking platform

A simple and complete solution for monitoring your PEPPOL workflow.

• Consolidated dashboard
• Status tracking and error management
• Complete history
• Import of invoices from different systems

The platform ensures total visibility and continuous compliance.

Un accompagnement complet pour réussir la transition PEPPOL

Quel que soit votre modèle de facturation ( simple, hybride, variable, multi-sociétés ou basé sur des métriques spécifiques ) KERN IT peut :

• Développer un module de conversion UBL fiable
• Créer un pont entre vos outils internes et PEPPOL
• Automatiser l’émission
• Réduire les tâches manuelles
• Garantir une conformité durable dès 2026

Conclusion: a requirement that reinforces your digital core

Mandatory electronic invoicing represents an opportunity to improve:

• Data quality
• Operational efficiency
• Error reduction
• Processing time
• Visibility into financial flows

With our expertise in custom development, our KERNEL technology, and our partnership with Digiteal, KERN IT helps you secure and optimise this vital transition.

Contact us to determine which integration approach is the best option for your organisation.