Santiago Carbó, professor of Economics, explains what you should do before the end of 2025 to improve your next income tax return

There are very few days left to end the year 2025 and, with this, many eyes are already on the Income Tax Return that millions of citizens will have to make next year on their tax accounts this year. The Tax Agency, in fact, has already set April 8, 2026 as the date on which citizens will be able to begin submitting their tax obligations.

Before that, there are still those who wonder what they can do in these last days of the year to improve their Income Tax Returns. As explained Santiago Carboprofessor of Economics at the University of Valencia, on the 24-hour channel, the options in these last moments of 2025 pass, almost only, for opening a pension plan.

“The best and almost the only thing is to open a pension plan or invest in which we have up to 1,500 euros. It’s not much, but the truth is that at this moment there aren’t many options. For citizens who are not investors, practically the only thing we have left now is pension plans,” Carbó assured.

“The ideal is 1,500 euros because that is the maximum tax reduction and therefore it is not advisable to invest more”added the professor, who has confirmed that this figure is independent of the salary that each person has for an individual pension plan: “It is not advisable to put more money.”

“In company employment plans yes there may be some larger deductionbut that depends on what the company has contributed to the pension plan,” added Carbó. The expert has also confirmed that the new garbage rate is not deductible in the Income Tax Return for a habitual residence: “It has more to do with civic behavior as a citizen.”

Carbó has also pointed out that, as always, there are other circumstances that can be beneficial when making the Declaration: “The self-employed have different circumstances because they can deduct expenses as long as they have proof for the work. They do have greater planning. The rest of us do have rent, we can deduct it, “What happens is that we are not going to take this situation in these three days.”

“Most communities have a rental deduction and the vast majority have a good deduction that “It reaches up to 1,200 or 1,300 euros in some cases.”the professor has indicated. “And for people who take out mortgages, obviously that is an expense, therefore there is a part that can be deducted,” he added.