Since 1 January 2026, all Belgian VAT-registered businesses must send and receive structured e-invoices. Here’s how Invoicier gets you compliant in under 10 minutes.
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Is e-invoicing mandatory in Belgium?
Yes. Belgium has required Peppol e-invoicing for public-sector (B2G) suppliers since 2022, and since 1 January 2026 structured e-invoicing has been mandatory for all domestic B2B transactions between VAT-registered businesses.
Peppol (Pan-European Public Procurement On-Line) is the standard electronic invoicing network used across Europe. In Belgium, Peppol has been the backbone of government e-invoicing since 2019, when the federal government began requiring suppliers to submit invoices electronically.
Belgium’s e-invoicing framework is governed by federal law aligned with EU Directive 2014/55/EU. The Mercurius platform serves as the government’s e-invoicing portal, and all invoices to federal entities must pass through Peppol-compliant channels. The standard format used is UBL-BE, compliant with Peppol BIS Billing 3.0 and EN 16931.
Since January 2026, Belgium has extended mandatory structured e-invoicing to all domestic B2B transactions. Businesses that do not comply risk rejected invoices, delayed payments, and potential penalties. Connecting to Peppol keeps you compliant and ready to invoice.
Belgian e-invoices are exchanged as structured XML over the Peppol network. Invoicier generates and validates these formats for you automatically.
On the Peppol network, every business is addressed by a participant identifier. In Belgium these are derived from your official company numbers.
Belgian federal government agencies required to accept e-invoices via Peppol.
All suppliers to federal government must send invoices electronically via Peppol.
Mandatory structured e-invoicing for all domestic B2B transactions between VAT-registered businesses.
EU-wide digital reporting requirements expected under the ViDA (VAT in the Digital Age) initiative.
No Peppol paperwork, no ERP migration. Just sign up and start invoicing.
Sign up with your email. No credit card, no lengthy onboarding.
Enter your company details and Belgian enterprise number (KBO/BCE), and we register your Peppol ID for you.
Create an invoice in UBL format and send it over Peppol to any Belgian or international recipient.
Incoming Peppol invoices arrive in your dashboard. View, track, and manage them in one place.
Peppol-compliant e-invoicing with none of the ERP complexity, built for businesses of any size.
Send and receive on the official Peppol network, fully aligned with EN 16931 and local rules.
No ERP migration or paperwork. Sign up, add your company number, and send your first invoice.
We register your participant ID for you so you can send and receive on the network.
Invoice any Peppol recipient across 50+ countries from one place, with no extra setup.
Get connected to Peppol today. It takes 10 minutes.
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