Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
Invoice tax categories MUST be coded using UNCL5305 code list
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-CL-17/
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.
An invoice tax category code must use the UNCL5305 code list. The statement says MUST, writes UNCL5305 with no space, and has no period. The context is cac:TaxCategory/cbc:ID. The test is the same string as BR-CL-18. It keeps the missing spaces after the commas and a single space before each of three closing parentheses. The list is AE, L, M, E, S, Z, G, O, K, and B. The test does not call exists.
Set the tax category code to one of AE, L, M, E, S, Z, G, O, K, or B, with no space.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. The tax category code contains a space, or it is not in that UNCL5305 list.
Passes the stated condition. The tax category code is S, with no space.
Copied from the source. Not reimplemented on this page.
cac:TaxCategory/cbc:ID
( ( not(contains(normalize-space(.),' ')) and contains( ' AE L M E S Z G O K B ',concat(' ',normalize-space(.),' ') ) ) )
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