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Form 100. Personal Income Tax Declaration 2019

10.15.27 For investment in self-consumption electricity installations

Taxpayers may deduct 20 per 100 of the amount of the amounts invested in installations carried out in the homes of the Valencian Community and in collective building installations intended for any of the purposes set out below. indicate, as long as these are not related to the exercise of an economic activity:

  • Electrical self-consumption installations, as established in article 9.1 of Law 24/2013, of December 16, on the Electrical Sector, and its implementing regulations (modality of supplying electrical energy with self-consumption).
  • Installations for the production of thermal energy from solar energy, biomass or geothermal energy for the generation of domestic hot water, heating and/or air conditioning.
  • Installations for the production of electrical energy from photovoltaic solar and/or wind energy, for the electrification of homes isolated from the electrical distribution network and whose connection to it is unfeasible from a technical, environmental and/or economic point of view.

Those facilities that are mandatory will not be entitled to apply this deduction.


  • This deduction may be applied to investments made in the domestic sphere in any type of home, both those that are habitual and those that constitute second residences, as long as they are located within the territory of the Valencian Community.
    The deduction is not applicable in the case of homes whose use is assigned to third parties (leased homes, assigned to third parties without consideration, homes of which only bare ownership is held, etc.
    For the purposes of this deduction, the concept of housing contained in the regional regulations governing housing will be used.
  • In the case of housing complexes under a condominium regime in which these installations are carried out on a shared basis, as long as they have legal coverage, this deduction may be applied by each of the owners individually according to the participation coefficient that they appropriate, as long as they comply with the rest of the established requirements.
  • The deduction will require prior recognition by the autonomous Administration. For these purposes, the Valencian Institute of Business Competitiveness (IVACE) will issue the corresponding accreditation certification.
  • The actions subject to deduction must be carried out by installation companies that meet the requirements established by regulation.
  • The application of the deduction is conditional on the delivery of the monetary amounts derived from the legal act or business that gives the right to its application to be made by credit or debit card, bank transfer, nominative check or deposit into accounts at credit institutions.
  • The application of the deduction will require that the verified amount of the taxpayer's assets at the end of the tax period exceeds the value that its verification showed at the beginning of the period by, at least, the amount of the investments made. For these purposes, the increases or decreases in value experienced during the aforementioned tax period will not be computed for the assets that at the end of the period continue to form part of the taxpayer's assets.

 Deduction base

The basis of this deduction is constituted by the amounts actually paid in the year by the taxpayer.
In the case of housing owned by the community property, the expenses of the family home are attributable to both spouses, regardless of who actually pays them or which of them appears as the holder of the bill. In the property separation regime, the attribution of the expense to one or the other spouse or to both must be carried out based on who has actually incurred the expense.
In the case of payments from financing obtained from a bank or financial entity, the amortization of capital for each financial year will be considered part of the deduction base, with the exception of interest.

The maximum annual base of this deduction is established at 8,000 euros. The indicated base will also be considered the maximum deductible investment limit for each home and year. The part of the investment supported, where appropriate, with public subsidies will not give the right to deduction.
The limit of 8,000 euros per home and year applies to all taxpayers with respect to the same home.
In the case of several taxpayers and with respect to the same home, the limit of 8,000 euros is distributed according to the percentage of ownership of the real right that the taxpayers have over the home, whether or not they are filers for the tax.
The amounts corresponding to the tax period not deducted may be applied in the settlements of the tax periods that end in the immediate and successive 4 years.

Application rules:

  • The amounts paid in a year that remain pending deduction must be deducted in the maximum amount allowed by each of the following years and without being able to be deducted outside the period of four years.
  • If in a financial year amounts paid in the year and others from previous years pending deduction coexist, these will be applied first for the purposes of determining the amounts paid in the year that can be deducted in subsequent years.
  • The deduction corresponding to the amounts paid in a year in which the taxpayer has not filed a return cannot be applied in subsequent years, as well as the deduction not applied for reasons other than the application of the maximum base of the deduction.
  • The deduction corresponding to the amounts invested in a year in which the taxpayer has not filed a declaration, as well as the deduction “not taken” for reasons other than the application of the maximum base of the deduction (for example, because the deduction in the final result of the declaration), only has effect in said year, without being possible to transfer it to subsequent years.
  • In exceptional cases in which the deduction is applied to more than one home, if the total investment made in the year exceeds the maximum base of the deduction, the deduction corresponding to each of the homes is made, first, taking into account the specific circumstances of each home and, secondly, the proportion with respect to the deductible investment, both in the exercise of the investment and in the case of application to the four immediate and successive tax periods.


It must indicate the investments made in 2017 and 2018 that were pending application.

The amounts invested in fiscal year 2019 with the right to deduction.

The percentage of ownership in the home.