EN 16931 Validator
Validator
πΈπ° Validate EN 16931 Invoices for Slovakia
EN 16931PlannedPeppol
EN 16931 is planned in Slovakia. Slovakia approved mandatory B2B e-invoicing in December 2025, effective January 1, 2027.
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
Slovakia E-Invoicing Requirements
Phase
Status
Scope
B2G
Live (Apr 2023)
Public procurement >β¬5,000
B2B mandatory
Jan 2027
All VAT-registered businesses (incl. freelancers)
Cross-border
Jul 2030
Intra-EU B2B (ViDA alignment)
Validation engineFinancial Administration (5th corner in Peppol model)
Required CIUSEN 16931 (UBL 2.1, CII D16B, Peppol BIS 3.0)
Government portalIS EFA (B2G platform, transitioning to Peppol by 2027)
Routing identifierIΔ DPH (VAT ID) mapped to Peppol Participant ID
PeppolMandatory β Financial Administration becomes Slovak Peppol Authority
Slovakia's Peppol 5-corner model adds a reporting layer that Peppol-only integrations don't have.
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
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