B2G mandatory

Peppol e-invoicing in Luxembourg, compliant for public procurement

Every business invoicing the Luxembourg public sector must send e-invoices over Peppol. Invoicier gets you sending and receiving structured e-invoices in minutes.

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Is e-invoicing mandatory in Luxembourg?

For the public sector, yes. Since 18 March 2023, all economic operators, regardless of size, must send structured e-invoices over Peppol when invoicing Luxembourg public-sector bodies. B2B e-invoicing is currently voluntary, but Peppol is already the established channel.

What is Peppol in Luxembourg?

Peppol (Pan-European Public Procurement On-Line) is the standard network for exchanging structured electronic invoices across Europe. Luxembourg built its public-sector e-invoicing entirely on Peppol, so invoices to government bodies are sent through approved Peppol access points.

Luxembourg's B2G mandate was phased in by company size under the law of 13 December 2021: large businesses from 18 May 2022, medium-sized businesses from 18 October 2022, and small and newly established businesses from 18 March 2023. Since then, every economic operator must send compliant e-invoices when supplying the public sector.

E-invoices to the public sector must comply with the EN 16931 European standard and are exchanged as Peppol BIS Billing 3.0. B2B e-invoicing is not yet mandatory, but with more than a million invoices a year already flowing over Peppol in Luxembourg, connecting now keeps you ready for public tenders and for a future B2B mandate.

E-invoice formats and standards in Luxembourg

Luxembourg e-invoices are exchanged as structured XML over the Peppol network. Invoicier generates and validates these formats for you.

Peppol BIS Billing 3.0
The standard structured invoice format on the Peppol network, and the required format for invoicing the Luxembourg public sector.
EN 16931
The EU semantic standard for electronic invoicing that all Luxembourg public-sector e-invoices must comply with.

Peppol identifiers in Luxembourg

On the Peppol network, Luxembourg businesses are addressed by a participant identifier built from their official registration numbers.

VAT number (No. TVA) LU12345678
Your Luxembourg VAT identifier, commonly used as the basis for your Peppol participant ID (scheme 9938).
RCS number B123456
Your registration number with the Luxembourg Trade and Companies Register (Registre de Commerce et des Sociétés).

Luxembourg e-invoicing timeline

May 2022

B2G (large businesses)

Large businesses must send e-invoices over Peppol when invoicing the public sector.

October 2022

B2G (medium businesses)

Medium-sized businesses join the public-sector e-invoicing mandate.

March 2023

B2G (all businesses)

Small and newly established businesses must also send e-invoices to the public sector.

Today

B2B voluntary

B2B e-invoicing is voluntary, with Peppol already widely used across Luxembourg.

How Invoicier connects you to Peppol Luxembourg

No ERP migration, no paperwork. Sign up and start sending and receiving.

1

Create your account

Sign up with your email. No credit card, no lengthy onboarding.

2

Add your Luxembourg company

Enter your company details and VAT number, and we register your Peppol ID for you.

3

Send your first invoice

Create a structured e-invoice and send it over Peppol to any Luxembourg public body or international recipient.

4

Receive invoices automatically

Incoming Peppol invoices arrive in your dashboard. View, track, and manage them in one place.

Start free, no credit card

Why send Peppol invoices with Invoicier

Peppol-compliant e-invoicing with none of the ERP complexity, built for businesses of any size.

Compliant by design

Send and receive on the official Peppol network, fully aligned with EN 16931 and local rules.

Live in minutes

No ERP migration or paperwork. Sign up, add your company number, and send your first invoice.

Peppol ID handled for you

We register your participant ID for you so you can send and receive on the network.

Cross-border ready

Invoice any Peppol recipient across 50+ countries from one place, with no extra setup.

Peppol in Luxembourg: frequently asked questions

Peppol is mandatory for invoicing the Luxembourg public sector

Start sending and receiving on Peppol today. It takes minutes.

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