The municipal plusvalía: who pays, how to calculate it, how to optimise it
The municipal plusvalía is one of the least understood taxes for sellers in Spain, partly because of its name. Contrary to what is often believed, it does not apply to the gain made on your home, but to the theoretical increase in the value of the land on which it is built, between the moment you acquired it and the moment you sell it. It is a municipal tax, collected by the town hall where the property is located.
Who pays it? In a standard sale, it is the seller who is liable, since it is the seller who carries out the transfer and the supposed gain on the land. In the case of a gift or an inheritance, the burden falls instead on the person who receives the property. This rule can be adjusted by agreement between the parties, but custom and the law designate the seller as the natural payer in a sale.
How is it calculated? The base rests on the cadastral value of the land (valor catastral del suelo), not on the sale price. To this value are applied a coefficient linked to the number of years of ownership and a rate set by each municipality, within the legal limit. Two properties sold at the same price can therefore generate very different plusvalías depending on the town and the length of ownership.
The 2021 reform introduced an essential point: you can now choose between two calculation methods, one flat-rate based on the cadastral value, the other based on the actual gain on the land. You logically keep the more advantageous one. Above all, if you sell without making an actual gain — at a loss or at the same price — you can, by proving it, be exempt from this tax.
This opens several levers for optimisation. Keeping the purchase and sale deeds makes it possible to demonstrate the absence of a gain or a modest gain. Comparing the two calculation methods avoids paying the flat-rate version when the actual method is gentler. Checking the cadastral value, sometimes overvalued, can also justify a challenge. The declaration deadline is short, generally thirty working days after signing.
These rules vary from one municipality to another and change regularly. The information given here is indicative and should be validated by a gestor on a case-by-case basis. At Alveo Properties, we quantify your plusvalía before putting the property on the market and test both methods to keep the more favourable one.
