Peppol E-invoicing Belgium 2026: Complete Guide to Mandatory B2B E-invoicing
Since January 1, 2026, structured e-invoicing has been mandatory for nearly all B2B transactions between Belgian VAT-registered businesses. Discover how Factuur Simpel supports this via Peppol.
Belgian VAT-registered businesses must send and receive structured B2B invoices. Peppol is the standard route; compliant alternatives require mutual agreement.
What is Peppol E-invoicing?
Peppol (Pan-European Public Procurement OnLine) is the international network for electronic invoicing. Instead of sending PDFs by email, structured invoices are exchanged via a secure network.
The old way (PDF/email)
- ✗Manual data entry
- ✗Errors from human input
- ✗Long processing time
- ✗Lost invoices in spam
With Peppol e-invoicing
- Automatic data processing
- Validated, error-free invoices
- Instant delivery and processing
- Guaranteed delivery
Globally connected via the Peppol network
The Peppol network connects businesses in over 40 countries. Via your Peppol registration, you can send and receive invoices from any connected organization worldwide.
Who must use structured e-invoicing in Belgium?
The Belgian structured e-invoicing obligation applies to nearly all VAT-registered businesses established in Belgium with B2B activities. These are the key target groups.
SMEs and companies
Nearly all VAT-registered businesses established in Belgium must send and receive structured B2B invoices. Peppol is the standard route.
Freelancers
VAT-registered self-employed individuals and sole proprietors established in Belgium generally fall under the e-invoicing obligation too.
B2B transactions
The obligation applies to nearly all invoices between VAT-registered businesses established in Belgium. B2C sales are outside its scope.
Exceptions to the e-invoicing obligation
Exceptions include B2C invoices, international transactions, businesses not established in Belgium without a Belgian permanent establishment, and certain exempt activities.
What if you don't comply with the e-invoicing obligation?
Belgian VAT rules provide penalties for failing to issue compliant structured invoices or have the required technical means.
Administrative fines
Existing VAT fines apply when a required structured invoice is missing, late, inaccurate, or otherwise non-compliant.
Invoice compliance
A regular B2B invoice is required for VAT deduction, although the material conditions can preserve that right in specific cases.
Technical-readiness fines
Not having the technical means to send and receive structured invoices can result in escalating fixed fines.
How do you comply via Peppol?
Use this step-by-step plan to send and receive compliant structured invoices via Peppol.
Choose Peppol-compatible software
Select invoicing software with full Peppol support, such as Factuur Simpel.
Register for Peppol
Your Peppol registration is automatically handled when you sign up for a Complete subscription.
Inform your customers
Communicate your Peppol registration to customers so they can prepare their systems.
Start sending and receiving
Begin sending and receiving Peppol invoices right away to gain experience.
Why choose Factuur Simpel for Peppol?
Factuur Simpel offers a complete Peppol solution for businesses invoicing to Belgium.
Built for compliant e-invoicing
Supports structured invoices via Peppol for the Belgian B2B e-invoicing rules.
Fast Peppol registration
Your Peppol registration is processed within hours. Start sending immediately.
Global Peppol reach
Send Peppol invoices to 300,000+ businesses in 40+ countries connected to the Peppol network.
Safe and reliable
Enterprise-grade security with encrypted Peppol communication and guaranteed delivery.
Easy to use
Intuitive interface - create an invoice and send it with one click via Peppol.
Multilingual support
Support that understands the Belgian Peppol legislation.
Frequently asked questions
Answers to the most frequently asked questions about Peppol e-invoicing in Belgium.
When did structured B2B e-invoicing become mandatory in Belgium?
The structured e-invoicing obligation took effect on January 1, 2026 for nearly all transactions between VAT-registered businesses established in Belgium. Peppol is the standard exchange route, while another EN 16931-compliant format and delivery method may be used by mutual agreement.
What does Peppol registration cost?
At Factuur Simpel, your Peppol registration is included in the Complete subscription (€21.99/month excl. VAT). There are no extra costs for registration or sending/receiving Peppol invoices.
Do I need to use Peppol for Belgian customers as a foreign company?
A foreign business without a Belgian permanent establishment is generally outside the Belgian B2B mandate, even if it has a Belgian VAT number. You can still use Peppol voluntarily when your customer supports it.
Can I still send PDF invoices to Belgian customers?
For transactions covered by the Belgian B2B mandate, a PDF alone is not sufficient: a structured electronic invoice is required. Peppol is the standard route, but parties may agree on another delivery method and EN 16931-compliant format.
What if my Belgian customer doesn't have Peppol yet?
Ask your customer to enable structured e-invoicing. If they cannot yet receive via Peppol for technical reasons, Belgian guidance allows an agreed secure fallback while they resolve the issue.
How quickly can I start with Peppol?
With Factuur Simpel, you can be Peppol-ready within 24 hours. Register, get a Complete subscription, and your Peppol registration is automatically processed.
Get compliant with Peppol today
Not compliant yet? Factuur Simpel handles your complete Peppol registration so you can send and receive B2B invoices right away.
30 days free trial, then from €21.99/month excl. VAT for full Peppol support.