15 June 2026

Last days of the 2025 tax return: how to optimise your salary and avoid overpaying

a person doing calculations with a calculator

Come in final stretch of the tax return campaign and with it, the opportunity to review your declaration and lay the groundwork for paying less next year. The II Study of Occupational Well-being and Health Edenred reveals a reality that companies have not yet solved: the 70.51% of professionals do not receive any form of financial education at their company.

Even so, the desire to learn is clear: 56.21% of respondents want training to maximise their earnings and improve their savings. That is why, Edenred and TaxDown have launched a Practical savings guide with recommendations on taxation, employee benefits and Flexible Remuneration to help you Maximise your purchasing power before 30 June.

Table of contents

Deductions vs. exemptions: how they lower your income tax in the last month

To avoid overpaying, you must distinguish between two saving methods. These deductions apply when filing the return. For example, large family, rent, disability, or donations to NGOs.

The exemptions reduce the taxable base from the salary: here comes the Flexible remuneration, which allows you to pay certain regular expenses with your gross salary and not pay tax on them (within legal limits).

How does Edenred help you with your tax return?

La Edenred savings guide explain how combining Flexible remuneration (food, transport, childcare, health and training expenses) with appropriate tax review, professionals can reach save between €1,500 and €2,600 per year.

This document provides key advice on how not to “give away” money on your tax return (it warns you about common errors and Regional tax deductionsand to plan for the next financial year, maximising legal payroll exemptions.

 

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Mistakes that make you overpay and how to avoid them

In these final days, avoid five common mistakes:

  1. Confirm the draft without reviewingyour draft may be missing potential deductions or your tax-exempt benefits related to food, transport, or childcare may not have been correctly identified.
  1. Forget to include a second or more payersIf you forget to include any, HM Revenue and Customs will easily detect it. The result: you will have to regularise the situation and pay the outstanding amount, plus possible interest.
  1. To wrongly declare your children or marital statusThe Hacienda does not automatically update changes such as marriages, separations, or births, so it is important to review this information carefully. Furthermore, in cases of separation or divorce, it is important to agree beforehand with the other parent who will include the children in the tax return.
  1. Do not apply relevant deductionsThis is the case of the deduction for maternity, for large families, both general and special, for the rent of a habitual residence, and for donations to non-profit entities.
  1. Incorrectly declaring investments, shares, or cryptocurrenciesFailing to declare a sale of shares or cryptocurrency, or miscalculating the profits made, can result in significant surcharges or penalties.

Flexible Remuneration: optimise your salary today and prepare for a better pension in 2026

La Flexible remuneration it's a simple way to make your salary go further because deduct part of your gross salary for day-to-day expenses (such as food, transport, childcare, etc) And these have tax advantages upon being exempt from personal income tax.

The law allows allocate up to 30% of the gross annual salary to these items (summing up all benefits in kind), always respecting the limits of each category. The effect is twofold: you receive more net income month by month and you reach your tax return with an “optimised” income tax (IRPF) because you have paid tax on a lower base.

With the Edenred solutions you'll be able to save month after month. Here are some practical examples per product:

  1. Ticket RestaurantYou can spend up to 11€ per day tax-free (up to 2,420€ per year). That translates to a Approximate savings of €400 to €700 annually according to your bracket.
  1. Edenred Mobilityallows you to allocate up to €1,500 per year, exempt from income tax, to season tickets for the metro, bus, commuter trains, trams, or trains linked to your usual commute to work. The estimated savings are between €200 and €450 per year..
  1. Edenred Guardería (0 to 3 years): is exempt from income tax without limit and is compatible with the maternity deduction and with the increase of up to €1,000 for nursery expenses (if you meet the AEAT requirements).
  1. Health insurance with Flexthe exemption reaches €500 per person (holder and each beneficiary).

Taken together, these amounts reduce your taxable base and help you pay less income tax legally and automatically.

Pay less now and prepare for a better 2026

Optimising your tax return isn’t just about submitting the draft; it’s about understanding where your savings levers are and using them. Review your declaration, avoid the most frequent errors, and ensure your tax-exempt benefits are correctly reflected.

And, if you’re not already using Edenred Flexible Benefits, this is the time to request it from your company so that your next campaign is kinder. Download Edenred’s practical guide to saving, by TaxDown, calculate your potential savings and activate it at Edenred Flex the package of benefits that best suits your daily life.

I am an expert in employee benefits, specialising in strategic communication and consulting. I currently work at Edenred Spain as a Customer Success Manager, where I support organisations in the effective implementation of their compensation and benefits plans. My goal is to maximise the perceived value of these solutions as a key lever for talent attraction and retention.

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