{
  "id": "BR-DEC-13",
  "country": "EU",
  "syntax": "ubl",
  "group": "decimal",
  "severity": "fatal",
  "severity_note": "fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.",
  "spec": "Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL",
  "statement": "The allowed maximum number of decimals for the Invoice total VAT amount (BT-110) is 2.",
  "statement_lang": "en",
  "context": "/ubl:Invoice | /cn:CreditNote",
  "test": "(//cac:TaxTotal/cbc:TaxAmount[@currencyID = cbc:DocumentCurrencyCode] and (string-length(substring-after(//cac:TaxTotal/cbc:TaxAmount[@currencyID = cbc:DocumentCurrencyCode],'.'))<=2)) or (not(//cac:TaxTotal/cbc:TaxAmount[@currencyID = cbc:DocumentCurrencyCode]))",
  "meaning": "The Invoice total VAT amount (BT-110) may have at most 2 decimals. The statement says \"allowed maximum number of decimals\" and \"is 2\", and it ends with a period. It does not say shall. The context is the invoice or the credit note, with spaces around the bar. This is a decimal limit, not the BR-CO-14 sum. The published test reads cbc:TaxAmount whose currencyID equals the document currency code, with spaces around =. It writes <=2 with no space before <= and no space after the comma. The absent branch is not(...) and does not call exists. The present branch does not call exists either.",
  "fix": "Send the Invoice total VAT amount (BT-110) in the document currency with at most 2 digits after the decimal point.",
  "example_fail": "The invoice total VAT amount in the document currency has 3 digits after the decimal point.",
  "example_pass": "That amount has 2 digits after the decimal point.",
  "example_note": "Illustration of the condition in the official statement. Not an example published by the source.",
  "source_url": "https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-DEC-13/",
  "source_retrieved": "2026-10-18",
  "last_verified": "2026-10-18"
}