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Peppol
🚨 LEGAL OBLIGATION since January 1, 2026 - Fines up to €5,000

Electronic Invoicing Mandatory in Belgium Since 2026 All Belgian companies must use Peppol electronic invoicing since January 1, 2026

Peppol: simply send and receive your e-invoices with Flexina
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IMPORTANT: The obligation is now in effect! Fines up to €5,000 if you're not compliant. Start NOW with Flexina - compliance guaranteed

Since January 1, 2026: Peppol Invoicing Mandatory for ALL Belgian Companies

Legal obligation now in effect
Since January 1, 2026, ALL Belgian VAT-registered companies must use Peppol electronic invoicing for their B2B transactions. PDF invoices sent by email are no longer allowed. Fines up to €5,000 for non-compliance.

Legal Obligation since January 2026

Peppol electronic invoicing mandatory for ALL Belgian VAT-registered companies. PDF invoices by email are no longer allowed for B2B.

Fines from €1,500 to €5,000

Expected financial penalties: €1,500 (1st violation), €3,000 (2nd), up to €5,000 from the 3rd violation onwards. Don't take any risks.

Obligation Now in Effect

The obligation is now in effect! Switch to Flexina now to be compliant and avoid fines.

Peppol-Compatible Solution for Years

Flexina has been Peppol-compatible for years. Proven and reliable solution used by thousands of Belgian companies.

Quick Implementation

Your Peppol solution operational in just a few days. Training and expert support included for a stress-free transition.

Significant Tax Benefits

20% tax deduction + 120% expense deduction for Belgian SMEs. Take advantage now!

Why Choose Flexina for Your 2026 Peppol Compliance?

Proven solution for years
Flexina has been Peppol-compatible for years and is used by thousands of Belgian companies. We guarantee your total compliance for the 2026 obligation with a simple and proven solution.

Total Compliance Guaranteed

Flexina automatically handles all technical aspects of Peppol electronic invoicing. You're compliant effortlessly.

Thousands of Belgian Companies

Thousands of Belgian companies already trust Flexina for their invoicing. Proven and reliable solution.

Expert Belgian Support

Dedicated Belgian team that responds quickly via chat or email. Personalized assistance throughout your transition.

Two Peppol Solutions Tailored to Your Specific Needs

Flexina Invoicing or Peppol Box
Flexina offers two Peppol-compatible solutions to precisely meet your needs: Flexina Invoicing (invoicing software and complete business management) or Peppol Box (send/receive Peppol electronic invoices only).

Flexina Invoicing

Complete and scalable business management solution: invoicing, quotes, clients, inventory, accounting, planning + integrated Peppol.

Peppol Box

Simple electronic invoicing solution to send and receive your invoices via Peppol. Designed for part-time self-employed, freelancers, and merchants: Peppol Box

Personalized Advice

Our experts analyze your specific needs and guide you to the Peppol solution best suited to your business.

FAQ: Peppol Electronic Invoicing Obligation Belgium 2026

Since January 1, 2026, Peppol electronic invoicing is mandatory for all B2B transactions in Belgium.

Discover how Flexina guarantees your total compliance.

2026 Legal Obligation

Since when is Peppol electronic invoicing mandatory in Belgium?
LEGAL OBLIGATION: Since January 1, 2026, electronic invoicing via Peppol is mandatory for all B2B (Business to Business) transactions in Belgium. Paper and PDF invoices are no longer accepted for these exchanges.
Which companies are affected by the 2026 Peppol obligation?
All Belgian companies that issue invoices to other companies (B2B) are affected. Regardless of size: freelancers, SMEs, large companies - this obligation applies to everyone. If you invoice business clients, you must use Peppol.
What happens if I don't comply with the Peppol obligation?
Expected fines: €1,500 for the first violation, €3,000 for the second, and up to €5,000 from the third violation onwards. Without a Peppol solution, your B2B invoices will no longer comply with Belgian legislation. Don't take any risks: prepare your transition now with Flexina.
Do I need to take action now?
The obligation is now in effect since January 1, 2026! If you're not yet compliant, it's imperative to start your transition NOW to avoid fines. Flexina assists you for guaranteed compliance.
Are there tax benefits for Peppol compliance?
Yes! Belgian SMEs can benefit from significant tax deductions: digital investment deduction of 20% and expense deduction of 120%. Peppol compliance is considered an investment in digitalization. Take advantage now with Flexina.

Flexina Solution

Why choose Flexina for my 2026 Peppol compliance?
Flexina has been Peppol-compatible for years and is used by thousands of Belgian companies! Proven invoicing software, guaranteed compliance, fast transition, and expert support included. We handle all the technical complexity for you.
How long does it take to implement Flexina?
Quick implementation: Your Peppol solution is operational in just a few days! Training included, personalized support, and complete assistance until your total compliance.
Can Flexina handle my current and future invoices?
Complete solution: Flexina manages your classic AND Peppol invoices in a single software. Progressive transition possible, data recovery, training included. Total continuity guaranteed for your business.
What's the cost of Peppol compliance with Flexina?
The cost of Flexina is a wise investment for your legal compliance! Free trial available - test our solution without commitment. Transparent pricing, no surprises.

Choosing between Flexina Invoicing and Peppol Box

What's the difference between Flexina Invoicing and Peppol Box?
Flexina Invoicing is a complete business management solution: invoicing, quotes, clients, inventory, accounting, planning with integrated Peppol. Peppol Box is designed for part-time self-employed, freelancers, and merchants who only need a simple electronic invoicing solution to send and receive their invoices via Peppol.
Who is Peppol Box designed for?
Peppol Box is perfect for part-time self-employed, freelancers, and merchants who only need to send and receive electronic invoices via Peppol, without needing complete business management software (CRM, quotes, inventory, planning, etc.). It's the simple and affordable solution to be Peppol-compliant.
Can Peppol Box send and receive invoices?
Yes, Peppol Box can send and receive electronic invoices via Peppol. It's a complete solution for electronic invoicing, without the advanced business management features.
Which solution should I choose if I need complete management?
If you need a complete business management solution (quotes, invoicing, CRM, inventory, planning, accounting) with integrated Peppol, choose Flexina Invoicing. It's the scalable solution that grows with your company.

Technical Questions

What exactly is the Peppol network?
Peppol is the standardized European network for secure exchange of structured electronic invoices. It replaces paper and PDF invoices with digital documents compliant with Belgian and European legal standards.
Can we still send PDF invoices after 2026?
From January 2026, PDF invoices will no longer be compliant for B2B transactions in Belgium. Only structured electronic invoices via Peppol will be legally accepted. Flexina automatically converts your invoices to the right format.
How will my clients receive my Peppol invoices?
Your clients will receive your invoices directly in their accounting software or via their Peppol solution. No more emails, no more paper: instant and secure transmission. Flexina handles all the technical complexity for you.

Have a specific question?

Our team of experts is here to help you make your choice and answer all your questions about Flexina.

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Trusted by businesses in Belgium

Belgian companies use Flexina every day to manage their quotes, invoices and business operations.

TWOSEVEN SRL

SECURITY, NETWORK & ELECTRICAL

"Always loyal to FLEXINA here in Belgium, a real pleasure and a very efficient tool on a daily basis. We had tried many different invoicing software and none of them offered such flexibility in settings and customizations. A must have for all freelancers and Belgian companies who want an all-in-one tool without any hassle."
Lionel Delsart

Led Tech Pro

LED Technology

"I have been using Flexina for 13 years in Belgium, it's an excellent invoicing software that is complete (quotes, purchase orders, delivery notes, invoices...). It is easy to use, with its app and Cloud, it allows access to documents from anywhere and with any device."
Ugo Genestout

BATIJOINT PEINTURE

Painting & Construction

"We have been using Flexina for 10 years to manage our painting business in Herstal, Belgium. It's an indispensable business management tool: quote tracking, deposit management, overdue payment reminders and invoicing. Simple and effective on a daily basis."
Batijoint Peinture