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CFDI40184

Si el valor registrado en el campo TipoFactor que corresponde a Retención debe ser distinto de Exento.

In English A withholding cannot be exempt: TipoFactor must be Tasa or Cuota.

error: the document is invalid

What the rule checks

As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.

SAT validations of CFDI 4.0 and Pagos 2.0 Matrices of 25 March 2026 and Pagos 2.0 rev. B
Context
cfdi:Concepto/cfdi:Impuestos/cfdi:Retenciones/cfdi:Retencion
Test
not(@TipoFactor = 'Exento')

Checked with CFDI 4.0