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E-Invoice Validator

GR-R-001-2

MistakeUBL

Official rules text

When the Supplier is Greek, the Invoice Id first segment must be a valid TIN Number and match either the Supplier's or the Tax Representative's Tin Number

Rules and regulations

Does this error appear in your invoice?

Place the invoice here and see all violations with their location - free of charge, without registration.

  • 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.