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The inquirer asks whether, for energy efficiency tax deductions, they may use a certificate issued after the works have been completed that indicates the previous rating. The DGT rules that regulations require the certificate issued prior to the start of the works to be used for comparison.
Cuestión planteada Si a efectos de cumplir con los requisitos necesarios para la aplicación de la deducción por obras para la mejora de la eficiencia energética en viviendas prevista en la disposición adicional 50ª de la LIRPF, el certificado energético previo a la ejecución de las obras debe estar emitido antes del inicio de estas o es válido un certificado emitido con posterioridad a las obras que indique la calificación energética de la vivienda previa a la realización de las mismas.
Para aplicar las deducciones por obras de rehabilitación energética, la normativa exige acreditar la mejora comparando el certificado expedido después de las obras respecto del expedido antes del inicio de las mismas. Por tanto, no es posible acreditar la eficiencia energética previa mediante un certificado emitido con posterioridad a la ejecución de las obras.
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