Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
Seller tax representative VAT identifier shall occur maximum once, if the Seller has a tax representative
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/UBL-SR-23/
Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL
Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.
The seller tax representative VAT identifier shall occur at most once if the seller has a tax representative. The statement has a comma and no period. It says shall, says identifier, and capitalizes Seller and VAT. The flag is fatal. The context is cac:TaxRepresentativeParty. The published test counts party tax-scheme company identifiers. It does not compare the tax scheme to VAT. The count comparison has a space before <= and a space after it.
Send at most one tax representative tax-scheme company identifier.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. The tax representative party has two tax-scheme company identifiers.
Passes the stated condition. The tax representative party has one tax-scheme company identifier, or none.
Copied from the source. Not reimplemented on this page.
cac:TaxRepresentativeParty
(count(cac:PartyTaxScheme/cbc:CompanyID) <= 1)
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