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The inquirer asks whether an energy certificate issued after works are completed can be used to prove prior efficiency and claim a tax deduction. The DGT rules that this is not possible, as the prior certificate must have been issued within the two years preceding the start of the works.
Cuestión planteada Si a efectos de la aplicación de la deducción por obras para la mejora de la eficiencia energética en viviendas, es posible acreditar la eficiencia energética de la vivienda con carácter previo a las obras con un certificado expedido con posterioridad a la ejecución de las mismas.
Para acreditar el cumplimiento de los requisitos de las deducciones por eficiencia energética, los certificados expedidos antes del inicio de las obras son válidos siempre que no haya transcurrido un plazo de dos años entre su expedición y el inicio de las mismas. Un certificado emitido con posterioridad a la ejecución de las obras no cumple este requisito temporal de la disposición adicional 50ª de la LIRPF.
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