EN 16931 Validator
Validator
🇱🇺 Validate EN 16931 Invoices for Luxembourg
EN 16931B2G MandatoryPeppol
EN 16931 is required for B2G in Luxembourg. Luxembourg has fully implemented B2G e-invoicing with all businesses required to issue e-invoices to public sector entities since March 2023.
Quick Facts
What We Validate
EN 16931 semantic model compliance
Business rule validation (BR-xx rules)
VAT category rules (BR-S, BR-Z, BR-E, etc.)
Calculation rules (BR-CO-xx)
Code list validation
Party identification
Cross-border requirements
Common EN 16931 Errors
Luxembourg E-Invoicing Requirements
Phase
Status
Scope
B2G (all businesses)
Live (Mar 2023)
All businesses to public sector (phased from May 2022)
Required CIUSPeppol BIS 3.0 (standard Peppol CIUS — no national extensions)
Government portalMyGuichet.lu (manual submission portal)
PeppolYes — 11 certified Access Points; 4th in Peppol adoption relative to country size
Pure Peppol, no local customization. Luxembourg uses standard Peppol BIS 3.0 with no national CIUS, making it one of the simplest markets to support if you already have Peppol integration. MyGuichet.lu is available as a fallback for manual submission. CTIE (Centre for Information Technology of the State) operates the central authority. The Ministry for Digitalisation serves as the Peppol Authority.
FAQ
What is EN 16931?
EN 16931 is the European standard for electronic invoicing. It defines a semantic data model and business rules that all EU e-invoices must follow, regardless of syntax (UBL or CII).
Is EN 16931 mandatory?
For B2G invoices to EU public sector, yes. For B2B, it depends on the country. Under ViDA (VAT in the Digital Age), EN 16931 compliance will become essential across the EU.
What syntax should I use for EN 16931?
EN 16931 supports two syntaxes: UBL 2.1 and UN/CEFACT CII. UBL is more common for Peppol; CII is used in ZUGFeRD/Factur-X. Both express the same data.
What's a CIUS?
A CIUS (Core Invoice Usage Specification) is a national adaptation of EN 16931. Examples: XRechnung (Germany), Peppol BIS (international), CIUS-RO (Romania).
How do I prepare for ViDA?
Start by ensuring your invoices comply with EN 16931. Our validator checks all the business rules that will be required under the ViDA e-invoicing mandate.
Validators
XRechnung Validator
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ZUGFeRD Validator
Answers
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