Luxembourg Advances Mandatory B2B E-Invoicing Legislation

On July 17, 2026, the Luxembourg Government Council approved a draft law that would extend mandatory electronic invoicing beyond the public sector, introducing an obligation for domestic B2B transactions between businesses established in Luxembourg. The Council also endorsed a draft Grand-Ducal Regulation setting out the technical framework for a shared delivery network and alternative transmission channels.

The initiative builds on Luxembourg’s existing B2G e-invoicing infrastructure and forms part of the country’s broader alignment with the EU’s VAT in the Digital Age (ViDA) package. Under ViDA, cross-border B2B transactions across the EU will become subject to new Digital Reporting Requirements (DRR) from 1 July 2030, making e-invoicing the default method for such transactions, though not mandatory for domestic B2B supplies.

The Luxembourg mandate itself is limited to e-invoicing, and it does not introduce a domestic e-reporting requirement. The only reporting obligation Luxembourg businesses will face is the EU-level cross-border DRR from 2030, which is addressed by a separate companion bill transposing Article 2 of Directive (EU) 2025/516.

Peppol-Based Four-Corner Model

The draft framework adopts a four-corner model built on the Peppol network, extending the interoperable infrastructure Luxembourg already uses for B2G e-invoicing. Peppol will serve as the delivery network, enabling businesses with differing IT systems to exchange structured e-invoices in a standardized format. No further details on specific document format requirements have been published at this stage, though the Chamber of Commerce has noted future potential for a five-corner e-reporting model.

Under the new mandate, invoices will need to be issued as structured electronic documents. Invoice data must be exchanged in a machine-readable format capable of automatic processing by accounting and ERP systems.

Implementation Timeline

Subject to parliamentary approval, the rollout is planned in three phases:

• January 1, 2028 – All businesses must be able to receive electronic invoices.
• July 1, 2028 – Large and medium-sized businesses must begin issuing electronic invoices.
• January 1, 2029 – The issuance obligation extends to all remaining businesses, including smaller enterprises.

Business Support Measures

To help businesses prepare for the transition, the Chamber of Commerce plans to hold information sessions and practical workshops and will update its practical guide to electronic invoicing. Financial assistance will also be made available to support the acquisition of compliant software.

Next Steps

The draft law now enters Luxembourg’s parliamentary process, where details such as final dates, scope, and technical standards will be settled before the legislation takes effect. The Chamber of Commerce has expressed confidence that the bill will progress without major obstacles.

Businesses operating in Luxembourg should begin reviewing whether their accounting and ERP systems support structured electronic invoicing and Peppol connectivity ahead of the January 2028 deadline.

There’s more you should know about e-invoicing in Luxembourg – learn more about the new and upcoming regulations.