Luxembourg Moves to Mandate B2B E-Invoicing: Peppol Rollout Set for 2028–2029
Luxembourg's Council of Government approved a draft law on 17 July 2026 extending mandatory e-invoicing beyond public procurement to domestic B2B transactions, phased in via a Peppol four-corner network from 2028.
Luxembourg has taken its first formal step toward a domestic B2B e-invoicing mandate. On 17 July 2026, the Council of Government approved a draft law that would extend Luxembourg's existing B2G e-invoicing framework to cover domestic business-to-business transactions between companies established in Luxembourg — a significant expansion, since until now structured e-invoicing has only been mandatory for public procurement.
Why This Matters
Luxembourg draws explicitly on the flexibility EU member states have under the VAT in the Digital Age (ViDA) package to introduce domestic B2B mandates ahead of ViDA's own 1 July 2030 cross-border requirement. The bill is Luxembourg's first national step in that direction, and — notably — it explicitly excludes any domestic real-time e-reporting obligation, focusing purely on structured invoice exchange rather than transaction-level tax reporting.
Who Is Affected and When
The draft law defines business size by balance sheet total (€7.5 million), turnover (€15 million), and headcount (50 full-time employees), assessed against each company's 2026 financial statements. The phase-in is staggered by obligation type rather than purely by company size:
| Date | Obligation |
| 1 January 2028 | **Receipt** of structured e-invoices mandatory for all businesses |
| 1 July 2028 | **Issuance** mandatory for large and medium-sized businesses |
| 1 January 2029 | **Issuance** mandatory for all remaining businesses, including SMEs |
Invoices will move over a Peppol four-corner network, the same interoperability model already used by Belgium and being adopted by several other EU member states.
Technical Framework
Alongside the draft law, the Council also endorsed a draft Grand-Ducal Regulation setting out the technical framework for a shared delivery network and alternative transmission channels for businesses that cannot connect directly to Peppol.
What Happens Next
The draft law is not yet enacted — it now goes to the Luxembourg Chamber of Deputies for parliamentary approval, which could still adjust scope, thresholds, or dates before final adoption. Businesses operating in Luxembourg should treat 2028–2029 as a planning horizon rather than a locked deadline until the law clears parliament.
What Luxembourg Businesses Should Do Now
- Large and medium businesses (above the €7.5M/€15M/50-FTE thresholds): the 1 July 2028 issuance deadline gives roughly two years of runway — worth starting vendor and Peppol access-point evaluation once the law is formally adopted.
- Smaller businesses: the receipt-only obligation from 1 January 2028 comes first — check that your accounting software can receive Peppol BIS invoices even before you're required to send them.
- Everyone trading with Belgium already: if you have Peppol infrastructure in place for Belgian counterparties, you are already most of the way toward Luxembourg readiness, since both use the same four-corner model.
Sources
KPMG Luxembourg, Luxembourg's e-invoicing mandate takes shape; RTC Suite, Luxembourg Formalises Mandatory B2B E-Invoicing over a Peppol Four-Corner Network.
