The 2025 Income Tax Return campaign will begin on April 8, 2026, and will extend until June 30, a period in which taxpayers will be able to file their return online through the Tax Agency's electronic headquarters.
This exercise comes with relevant novelties, especially aimed at alleviating the tax burden of the lowest salaries and at recovering deductions linked to energy efficiency and sustainable mobility.
Deductions for low incomes and recipients of the SMI
The main novelty is the deduction aimed at workers who receive the Interprofessional Minimum Wage (SMI), set at 16,576 euros annually in 2025, which will allow a reduction of up to 340 euros in the tax payment for those who are at that income level.
In the case of those who receive slightly higher incomes, up to 18,276 euros annually, the deduction will be progressively reduced, which will also allow them to lower their tax bill, although to a lesser extent.
Boost to energy efficiency in homes
The campaign reinstates deductions for energy improvement works in homes, with incentives that vary depending on the type of action carried out. Thus, deductions of 20% can be applied for interventions that reduce heating and cooling demand, of 40% when the consumption of non-renewable primary energy is improved or a better energy rating is achieved, and up to 60% in the case of rehabilitation of residential buildings.
These measures will be in force at different times until 2026 or 2027 and will require the corresponding energy certification. In addition, the deduction of 15% for the acquisition of electric vehicles or the installation of charging points is maintained, within the strategy to boost the ecological transition.
New regional deductions: sport, veterinary, and health
The autonomous communities also expand the range of deductions, incorporating tax benefits linked to everyday expenses such as sports, pet care, or health. In some regions, taxpayers will be able to deduct part of the expense for gym or physical activity, as well as veterinary services, with savings that can reach 100 euros.
Likewise, certain dental treatments can reduce the tax amount by several hundred euros, while in territories like Catalonia, young people under 35 years old who live in rented accommodation will be able to access specific deductions. Many of these tax advantages do not appear automatically in the draft, so it will be necessary to review them and incorporate them manually.
Rise in savings taxation
Another of the novelties is the increase of the maximum rate in the savings base, which now stands at 30%, compared to the 28% of the previous campaign. This change will affect those who obtain returns from financial investments, such as shares, funds, or deposits, especially in the highest brackets.
The unemployed maintain the exemption from declaring
The campaign maintains the non-obligation to file the declaration for unemployed people, a measure already applied in the previous fiscal year. However, this exemption is only maintained if the established income thresholds are not exceeded, which are set at 22,000 euros annually with a single payer or 15,876 euros in case of having two or more payers.
A calendar marked by fiscal changes
Starting on April 8 and closing on June 30, the 2025 Income Tax campaign arrives marked by a double objective: strengthening support for the lowest incomes and fostering the energy transition, while introducing adjustments in savings taxation and expanding the deductions available at the autonomous community level.