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E-Invoice Validator

Luxembourg

When does the obligation apply?

Country informationE-invoicing requirement: dates and status
ScopeFromStatus
Public clientsMar 2023in forceall companies through Peppol
Companies (B2B)—no obligation

Public clients

Mandatory via Peppol for all companies since March 2023 (gradually from 2022).

Companies (B2B)

No mandate.

Formats and rules

FormatsPeppol BIS Billing 3.0 (UBL)
CIUSPeppol BIS Billing 3.0
Routing identifierPeppol ID, TVA number
Responsible bodyCTIE / Guichet.lu

What this validator checks for Luxembourg

Luxembourg uses Peppol without its own CIUS — the check is complete.

Sources

Status: 12.10.2026

Common questions about the e-invoicing requirement

When does the e-invoicing requirement apply in Luxembourg?
The table above gives the dates for Luxembourg: when receiving and when issuing become mandatory, for public bodies and for companies separately.
Does the requirement apply to small businesses too?
Usually yes. The obligation follows from trading between businesses, not from the size of the business. Smaller companies are often covered later, where a transition period applies — the dates above show where Luxembourg stands.
Which formats are allowed in Luxembourg?
The formats that satisfy EN 16931. Which ones apply in Luxembourg, and which CIUS, is listed under formats and rules.
Can I check my invoice for Luxembourg for free?
Yes. The validator checks free of charge and without sign-up against the rule sets that apply to Luxembourg.

Check invoice for Luxembourg

Free, without registration. The set of rules is selected from the specification identifier of the invoice.

  • Hosted in the EU
  • GDPR compliant
  • No storage
  • No use of AI
  • No cookies, no tracking
  • Official EN 16931 regulations
  • Always current official regulations

Official rule sets up to date: EN 16931 1.3.17 · Peppol BIS 3.0.20 · XRechnung 3.0.2 (KoSIT 2.6.0). Last checked against the sources on 12.10.2026.