The tax deduction for energy efficiency improvement works remains relevant for many property owners in 2026. It is not only about a possible tax advantage, but also about a measure that can influence how a home is prepared before being put on the market. In areas such as Costa Blanca South and Costa Cálida, where resale properties play an important role, this support can be especially interesting for owners who want to improve their property and make it more competitive in the market.

Not every renovation qualifies for this support

This is where the main question needs to be clarified. This deduction does not apply to every type of renovation. Renovating a kitchen, updating a bathroom or painting a property is not enough. To benefit from it, the work must involve a real improvement in energy efficiency, and that improvement must be technically certified. In certain cases, the deduction can reach up to €9,000, but only if the legal requirements are met.

Why this can be positive news if you want to sell

When a property improves its energy efficiency, it can do more than reduce consumption or improve its certificate. It can also become more attractive to buyers. Today’s market places much more value on comfort, insulation, window quality, efficient climate control and the overall condition of the property. For that reason, a well-planned improvement can help you sell better and strengthen the perceived value of the home.

An interesting opportunity for resale properties

In towns such as Pilar de la Horadada, Torrevieja, Orihuela Costa, Guardamar, San Pedro del Pinatar, San Javier and Los Alcázares, there are many homes with room for improvement. In these cases, preparing the property properly before putting it on the market can make a real difference. A major renovation is not always necessary, but it is worth assessing which improvements can help the property compete better against other options, especially updated homes or new developments.

Is it worth renovating before selling?

There is no single answer, because it depends on each property. But in many cases, it can be worth it, especially when the home needs some updating to be better positioned in the market. The key is to assess whether the investment will genuinely improve the property’s commercial appeal and whether it could also fall within this deduction. When both things come together, the decision makes much more sense.

The importance of analysing each case before starting work

Before starting any renovation, it is important to review the condition of the property, the profile of the potential buyer and the type of improvement that can add the most value. It is also important to understand that this deduction requires specific conditions and technical documentation. That is why, before making any decisions, it is advisable to obtain a professional assessment to determine whether the renovation is worthwhile and how to approach that investment.

At Munfort, we help property owners in Costa Blanca South and Costa Cálida analyse the real potential of their home before selling. We study each case in a practical way to assess whether prior improvements are worthwhile, how to position the property better and which strategy may work best depending on the area and the type of property.