Rules / GR-R-003 · Markdown

Peppol BIS Billing 3.0 · rule

GR-R-003

Layer peppol·Checked against Peppol BIS Billing 3.0 2026.5

What does GR-R-003 mean? For the Greek Suppliers, the VAT must start with 'EL' and must be a valid TIN number

Why did my invoice fail GR-R-003?

For Greek suppliers, the Seller VAT identifier must start with the prefix 'EL' followed by a valid Greek TIN number. The EL prefix is the country code used for Greek VAT numbers, and the TIN validity check (structure and check digit) catches mistyped identifiers. In UBL this is cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID with TaxScheme ID VAT.

Official rule text

For the Greek Suppliers, the VAT must start with 'EL' and must be a valid TIN number

Common causes

• Using the 'GR' prefix instead of 'EL' (Greek VAT numbers use EL)
• The bare TIN without any country prefix
• A TIN that fails the Greek check-digit validation due to a typo

How do I fix it?

<cac:PartyTaxScheme>
  <cbc:CompanyID>EL123456783</cbc:CompanyID>
  <cac:TaxScheme><cbc:ID>VAT</cbc:ID></cac:TaxScheme>
</cac:PartyTaxScheme>

Related rules

GR-R-001-1 · GR-R-001-2 · GR-R-001-3 · GR-R-001-4 · GR-R-001-5 · GR-R-001-6 · GR-R-001-7 · GR-R-002