UBL Invoice — BR-CO-17, VAT amount does not equal base x rate

Name: UBL Invoice — BR-CO-17, VAT amount does not equal base x rate — UBL 2.1 Invoice sample file
Creator: ValidateFin
License: https://creativecommons.org/licenses/by/4.0/

Un desglose de IVA que no cuadra: una base de 2.000,00 al 19 % son 380,00 de IVA, pero la factura declara 395,00. BR-CO-17 comprueba que la cuota de la categoría = base × tipo / 100, con el margen oficial de una unidad monetaria: un céntimo real de redondeo se tolera, esta diferencia de 15,00 no. Los demás totales cuadran con la cifra errónea, que es justo cómo un bug de redondeo llega a producción.

UBL 2.1 Invoice — Inválido

Factura UBL (Peppol BIS 3.0) UBL 2.1 Invoice EN 16931 / Peppol BIS 3.0Resultado esperado: Inválido — 3 errores

Lo que muestra este fichero

Transacciones	2
Total	2395,00 €

Los defectos que contiene

BR-CO-17BR-CO-17: VAT category tax amount (395.00) at rate 19% must equal base × rate / 100 (380.00, margin ±1.00).

Citado literalmente del validador, sin parafrasear.

Última verificación: 2026-07-12Licencia: CC-BY-4.0

Descargar el fichero Abrir el validador correspondiente

Todas las partes, IBAN e importes siguientes son ficticios. Los IBAN son estructuralmente válidos —superan el mod-97— pero no corresponden a ninguna cuenta real.

Contenido del fichero

<?xml version="1.0" encoding="UTF-8"?>
<!--
  ValidateFin sample file — UBL invoice, Peppol BIS Billing 3.0 (EN 16931).
  DELIBERATELY BROKEN — BR-CO-17.
  The VAT breakdown declares a taxable base of 2 000.00 at 19 %, which is 380.00 of VAT,
  but the VAT category tax amount says 395.00. Every other total is consistent WITH THAT
  WRONG FIGURE (BT-110 = 395.00, BT-112 = 2 395.00, BT-115 = 2 395.00), so BR-CO-14,
  BR-CO-15 and BR-CO-16 all pass: the file isolates BR-CO-17, "VAT category tax amount =
  VAT category taxable amount x VAT rate / 100", checked with the official margin of 1.00.
  This is the shape of a real rounding bug — VAT summed line by line, or a rate applied
  to a base that already included a discount.
  Expected validation result: INVALID — exactly one error, BR-CO-17.

  All parties and account numbers are fictitious.
  Reference page: https://validatefin.com/en/resources/samples/ubl-invoice-broken-vat-rounding
  License: CC-BY-4.0
-->
<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
         xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
         xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
  <cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID>
  <cbc:ProfileID>urn:fdc:peppol.eu:2017:poacc:billing:01:1.0</cbc:ProfileID>
  <cbc:ID>KES-2026-0190</cbc:ID>
  <cbc:IssueDate>2026-03-18</cbc:IssueDate>
  <cbc:DueDate>2026-04-17</cbc:DueDate>
  <cbc:InvoiceTypeCode>380</cbc:InvoiceTypeCode>
  <cbc:Note>VAT amount does not match base x rate — see BR-CO-17.</cbc:Note>
  <cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode>
  <cbc:BuyerReference>PO-2026-9207</cbc:BuyerReference>

  <cac:AccountingSupplierParty>
    <cac:Party>
      <cbc:EndpointID schemeID="9930">DE123456789</cbc:EndpointID>
      <cac:PartyName>
        <cbc:Name>Nordwind Logistik GmbH</cbc:Name>
      </cac:PartyName>
      <cac:PostalAddress>
        <cbc:StreetName>Speicherstrasse 12</cbc:StreetName>
        <cbc:CityName>Hamburg</cbc:CityName>
        <cbc:PostalZone>20457</cbc:PostalZone>
        <cac:Country>
          <cbc:IdentificationCode>DE</cbc:IdentificationCode>
        </cac:Country>
      </cac:PostalAddress>
      <cac:PartyTaxScheme>
        <cbc:CompanyID>DE123456789</cbc:CompanyID>
        <cac:TaxScheme>
          <cbc:ID>VAT</cbc:ID>
        </cac:TaxScheme>
      </cac:PartyTaxScheme>
      <cac:PartyLegalEntity>
        <cbc:RegistrationName>Nordwind Logistik GmbH</cbc:RegistrationName>
        <cbc:CompanyID>HRB 98765</cbc:CompanyID>
      </cac:PartyLegalEntity>
      <cac:Contact>
        <cbc:Name>Rechnungsstelle</cbc:Name>
        <cbc:Telephone>+49 40 555 0100</cbc:Telephone>
        <cbc:ElectronicMail>[email protected]</cbc:ElectronicMail>
      </cac:Contact>
    </cac:Party>
  </cac:AccountingSupplierParty>

  <cac:AccountingCustomerParty>
    <cac:Party>
      <cbc:EndpointID schemeID="9930">DE987654321</cbc:EndpointID>
      <cac:PartyName>
        <cbc:Name>Kessler Handel GmbH</cbc:Name>
      </cac:PartyName>
      <cac:PostalAddress>
        <cbc:StreetName>Marktplatz 3</cbc:StreetName>
        <cbc:CityName>Leipzig</cbc:CityName>
        <cbc:PostalZone>04109</cbc:PostalZone>
        <cac:Country>
          <cbc:IdentificationCode>DE</cbc:IdentificationCode>
        </cac:Country>
      </cac:PostalAddress>
      <cac:PartyTaxScheme>
        <cbc:CompanyID>DE987654321</cbc:CompanyID>
        <cac:TaxScheme>
          <cbc:ID>VAT</cbc:ID>
        </cac:TaxScheme>
      </cac:PartyTaxScheme>
      <cac:PartyLegalEntity>
        <cbc:RegistrationName>Kessler Handel GmbH</cbc:RegistrationName>
      </cac:PartyLegalEntity>
    </cac:Party>
  </cac:AccountingCustomerParty>

  <cac:PaymentMeans>
    <cbc:PaymentMeansCode>30</cbc:PaymentMeansCode>
    <cbc:PaymentID>KES-2026-0190</cbc:PaymentID>
    <cac:PayeeFinancialAccount>
      <cbc:ID>DE89370400440532013000</cbc:ID>
      <cbc:Name>Nordwind Logistik GmbH</cbc:Name>
    </cac:PayeeFinancialAccount>
  </cac:PaymentMeans>

  <cac:PaymentTerms>
    <cbc:Note>Net 30 days.</cbc:Note>
  </cac:PaymentTerms>

  <!-- 2000.00 x 19 % = 380.00, not 395.00 -->
  <cac:TaxTotal>
    <cbc:TaxAmount currencyID="EUR">395.00</cbc:TaxAmount>
    <cac:TaxSubtotal>
      <cbc:TaxableAmount currencyID="EUR">2000.00</cbc:TaxableAmount>
      <cbc:TaxAmount currencyID="EUR">395.00</cbc:TaxAmount>
      <cac:TaxCategory>
        <cbc:ID>S</cbc:ID>
        <cbc:Percent>19</cbc:Percent>
        <cac:TaxScheme>
          <cbc:ID>VAT</cbc:ID>
        </cac:TaxScheme>
      </cac:TaxCategory>
    </cac:TaxSubtotal>
  </cac:TaxTotal>

  <cac:LegalMonetaryTotal>
    <cbc:LineExtensionAmount currencyID="EUR">2000.00</cbc:LineExtensionAmount>
    <cbc:TaxExclusiveAmount currencyID="EUR">2000.00</cbc:TaxExclusiveAmount>
    <cbc:TaxInclusiveAmount currencyID="EUR">2395.00</cbc:TaxInclusiveAmount>
    <cbc:PayableAmount currencyID="EUR">2395.00</cbc:PayableAmount>
  </cac:LegalMonetaryTotal>

  <cac:InvoiceLine>
    <cbc:ID>1</cbc:ID>
    <cbc:InvoicedQuantity unitCode="C62">8</cbc:InvoicedQuantity>
    <cbc:LineExtensionAmount currencyID="EUR">1200.00</cbc:LineExtensionAmount>
    <cac:Item>
      <cbc:Description>Warehouse trolley, 300 kg capacity</cbc:Description>
      <cbc:Name>Warehouse trolley</cbc:Name>
      <cac:ClassifiedTaxCategory>
        <cbc:ID>S</cbc:ID>
        <cbc:Percent>19</cbc:Percent>
        <cac:TaxScheme>
          <cbc:ID>VAT</cbc:ID>
        </cac:TaxScheme>
      </cac:ClassifiedTaxCategory>
    </cac:Item>
    <cac:Price>
      <cbc:PriceAmount currencyID="EUR">150.00</cbc:PriceAmount>
    </cac:Price>
  </cac:InvoiceLine>

  <cac:InvoiceLine>
    <cbc:ID>2</cbc:ID>
    <cbc:InvoicedQuantity unitCode="C62">20</cbc:InvoicedQuantity>
    <cbc:LineExtensionAmount currencyID="EUR">800.00</cbc:LineExtensionAmount>
    <cac:Item>
      <cbc:Description>Safety strap set for pallet loads</cbc:Description>
      <cbc:Name>Safety strap set</cbc:Name>
      <cac:ClassifiedTaxCategory>
        <cbc:ID>S</cbc:ID>
        <cbc:Percent>19</cbc:Percent>
        <cac:TaxScheme>
          <cbc:ID>VAT</cbc:ID>
        </cac:TaxScheme>
      </cac:ClassifiedTaxCategory>
    </cac:Item>
    <cac:Price>

160 / 165 lines shown — the complete file is in the download above.

Cómo sabemos que estos resultados se sostienen

Cada fichero de esta biblioteca pasa por el propio validador del sitio en cada build. El resultado esperado indicado arriba lo verifica un test automatizado: si un fichero dejara de coincidir con lo que afirma esta página, el build fallaría. Dos fixtures heredadas se repararon así antes de publicarse: tres IBAN no superaban el mod-97 y varios nombres usaban caracteres fuera del juego SEPA básico.

Factura UBL (Peppol BIS 3.0)

Todos los ficheros de ejemplo https://validatefin.com/samples/ubl-invoice-broken-vat-rounding.xml