EN 16931 Validator
Validator
🇨🇿 Validate EN 16931 Invoices for Czech Republic
EN 16931B2G MandatoryPeppol
EN 16931 is required for B2G in Czech Republic. Czech Republic has a B2G-only e-invoicing mandate with no plans for mandatory B2B.
Quick Facts
Format
EN 16931
Standard
EN 16931
Mandate
B2G Only
Peppol
Connected
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
Czech Republic E-Invoicing Requirements
Phase
Status
Scope
B2G receiving
Live (Apr 2020)
All public sector entities must accept e-invoices
VAT Control Statement
Live (Jan 2016)
All VAT-registered businesses (monthly)
Required CIUSISDOC 5.2+ (national Czech format) or EN 16931
Government portalNEN (Národní elektronický nástroj)
PeppolYes — Peppol BIS 3.0 accepted alongside ISDOC
NEN platform. B2G suppliers can optionally submit through NEN, which accepts ISDOC (Czech national format), UBL 2.1, EDIFACT, and Peppol BIS 3.0. Suppliers are not required to issue e-invoices — the obligation is only on public authorities to accept them.
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
Validators
ZUGFeRD Validator
Answers
How do you validate an e-invoice?
Answers
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