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The inquirer asks whether, after applying the tax deduction for energy efficiency improvements in 2023, they can apply it again in 2024 for a second renovation. The DGT rules that this is possible provided the new work meets the demand reduction requirements and adheres to the annual limits.
Question posed: Whether, having applied the deduction for improvement works for the reduction of heating and cooling demand in the 2023 fiscal year, the same deduction could be applied again in the 2024 fiscal year due to the work planned to be carried out.
It is possible to claim the deduction under the 50th additional provision of the Personal Income Tax Law (LIRPF) for amounts paid for a second work, provided that it contributes to reducing the demand for heating and cooling by at least 7 percent. The deduction shall be applied in the period in which the certificate is issued following the work, respecting the maximum annual base of 5,000 euros. To certify the improvement, the certificate issued following the 2023 works may be used as a reference prior to the 2024 work.
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