PEPPOL OBLIGATION 2026: Since January 2026, all Belgian businesses must use Peppol electronic invoicing for B2B. Peppol Box from 5 €/month or Flexina Invoicing at 19.99 €/month — choose the solution that fits your needs!
With Peppol Box, create and send your compliant electronic invoices via the Peppol network in just a few clicks. Receive invoices from your suppliers directly in your Peppol Box workspace. Each received invoice generates an email notification and an automatic PDF preview, even if the supplier did not attach a PDF to their invoice. Peppol Box supports B2B invoices via Peppol and B2C invoices sent by PDF to individuals.
Peppol Box is operational in just minutes: sign up, activate your Peppol number and send your first invoice in record time. The Peppol Box trial costs only 5 € for 5 days with immediate Peppol registration. No commitment, no automatic renewal. You remain free at the end of each period. Setup in 5 minutes, 100% Belgian service.
Peppol Box is fully compliant with the Belgian Peppol electronic invoicing obligation in effect since January 2026. All your invoices comply with Peppol BIS 3.0 standards and the European standard EN16931. Peppol Box is a fully Peppol-compatible solution, guaranteeing full compliance of your B2B exchanges in Belgium and internationally.
With Peppol Box, your accountant retrieves your sales and purchase invoices for free. Export compatible with all Belgian accounting software: Sage BOB, WinBooks, Win Auditor, Horus, and others. Multiple transmission methods: download link, dedicated accountant workspace, automatic email or Flexina Sync (direct download to the accountant's computer). Peppol UBL XML or PDF format of your choice.
Unlike Peppol Box, Flexina Invoicing includes a full CRM: detailed client profiles, sales pipeline, opportunities, tasks and notes. Revenue tracking and real-time sales statistics.
Connect your bank via Ponto and automatically match payments with your invoices. Real-time tracking of unpaid invoices and automatic reminders. Included in the base price, not available in Peppol Box.
Schedule your teams, appointments and interventions directly linked to your quotes and invoices. Dedicated mobile app to view schedules remotely. Optional module at +5 €/resource/month.
The Purchases module (+10 €/month) includes Peppol supplier invoice reception, OCR/AI scanning with automatic recognition, purchase bank reconciliation and accounting export. Peppol Box offers basic OCR via Flexina Scan, but without bank reconciliation.
| Feature | Peppol Box from 5 €/month | Flexina Invoicing 19.99 €/month |
|---|---|---|
| Send Peppol invoices (B2B) | ✓ | ✓ |
| Receive Peppol invoices | ✓ | +10 €/month |
| B2C invoicing (PDF by email) | ✓ | ✓ |
| Payment QR code | ✓ | ✓ |
| OCR / AI scan (receipts and invoices) | ✓ | ✓ |
| Free accounting export | ✓ | ✓ |
| Mobile app | ✓ | ✓ |
| Built-in Peppol directory | ✓ | ✓ |
| REST API / ERP integration | ✓ | ✗ |
| Belgian support included | ✓ | ✓ |
| Flexina Invoicing exclusive features | ||
| Professional quotes | +5 €/month | ✓ included |
| CRM and client tracking | ✗ | ✓ included |
| Bank reconciliation | ✗ | ✓ included |
| Purchase orders / delivery notes | ✗ | +5 €/month |
| Team scheduling | ✗ | +5 €/resource |
| Electronic signature | ✗ | +5 €/month |
| Recurring invoices | ✗ | +5 €/month |
| Purchases: Peppol reception + OCR + reconciliation | ✗ | +10 €/month |
| Multi-users with access rights | +5 €/user | +5 €/user |
Since the Peppol electronic invoicing obligation in January 2026, thousands of self-employed, SMEs and accountants in Belgium have chosen Peppol Box or Flexina Invoicing to become compliant. Here are typical profiles to help you identify the right solution for your business.
A freelance graphic designer invoices 5 to 10 clients per month as a part-time self-employed worker. No need for CRM, scheduling or purchase management — just sending and receiving Peppol invoices. Peppol Box on the Starter plan at 10 €/month is the ideal solution: compliant with the Belgian Peppol obligation, operational in 5 minutes, and the accountant retrieves everything for free via Flexina Sync.
A technical services company with 15 employees, an intervention schedule and significant supplier purchases. Flexina Invoicing at 19.99 €/month with the Purchases module (+10 €/month) and Scheduling (+5 €/resource/month) centralises everything in one tool: quotes, invoicing, team scheduling, bank reconciliation and built-in Peppol. Technicians check the schedule on their phones via the mobile app.
An accounting firm managing over 100 client files of all sizes. Since the 2026 Peppol obligation, the firm directs its self-employed and micro-business clients to Peppol Box, and its SME clients to Flexina Invoicing. The firm retrieves all sales and purchase invoices for free via Flexina Sync — automatic retrieval into accounting software, compatible with Sage BOB, WinBooks, Horus. No cost for the firm.
A restaurant with 3 employees invoices its professional clients (caterers, businesses) B2B via Peppol and individuals B2C via standard PDF. Peppol Box on the Standard plan at 15 €/month handles both: B2B invoices automatically on Peppol, B2C invoices sent as PDF by email. Payment QR codes on each invoice speed up collections. A simple and affordable solution for the hospitality sector.
Over 15 years of experience in invoicing and business management. Peppol in production since 2020 for B2G invoicing. 100% Belgian service and support.
All the answers to help you choose between Peppol Box and Flexina Invoicing.
Pricing, features, compliance, migration — find the Peppol solution that fits your situation in Belgium.
Our team of experts is here to help you make your choice and answer all your questions about Flexina.
Manage your invoicing wherever you are
Belgian companies use Flexina every day to manage their quotes, invoices and business operations.
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."
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."
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."
