Leaving a property empty in Spain is far from free. New figures show annual costs can reach 5000 euros, with maintenance, taxes, and community fees quickly adding up. Many owners underestimate the true financial impact of keeping a home unoccupied.
Spain has millions of empty flats. Most owners do not realize how expensive it is to keep one unused. The Asociación Española de Franquicias Inmobiliarias (AEFI) says the yearly cost for an unoccupied city flat can reach 5000 euros. That is before you even count a mortgage or big repairs. Every month, owners pay about 417 euros just to keep the place closed. Spain's National Statistics Institute (INE) puts the number of vacant homes at 3.8 million as of the 2021 census. That is 14.4% of all housing. Nearly half of these are in towns with fewer than 10,000 people. So, the housing shortage in big cities is not solved by empty homes in small towns.
The breakdown is eye-opening. AEFI looked at a typical city flat with a cadastral value of 100,000 euros. Maintenance alone costs 1500 euros a year. Community fees add 1200 euros. The Impuesto sobre Bienes Inmuebles (IBI) usually takes another 700 euros. This tax can jump if the flat stays empty for years or if the owner has several vacant homes in one town. The Bank of Spain reports a housing supply gap of about 750,000 units. Only 92,000 new homes are expected in 2025, but 240,000 new households will form. This gap keeps prices high, especially in cities. Most empty flats are not where people want to live.
By the end of 2025, the number of long-term rental listings in Spain had dropped to about 510,000, down from over 902,000 in 2018.
Utilities are another steady cost. Even if no one lives there, owners keep water and electricity running to avoid expensive reconnections and to check the flat now and then. That adds up to 600 euros a year. Insurance for an empty home is about 300 euros. Local taxes take another 200 euros. Then comes the tax bill. AEFI estimates 500 euros in imputed income tax, based on a 2% notional rental value and a 25% marginal rate. But this number changes. Official tax guidance says the imputed income tax (IRPF) for non-primary homes is not always 2%. It can be 1.1% if the cadastral value was updated after January 1, 1994. The real tax depends on the flat's cadastral history and the owner's tax rate, as the Spanish Tax Agency explains.
Leonardo Cromstedt, president of AEFI, does not mince words: “Una vivienda vacía no es un activo sin coste. Incluso cerrada, exige una gestión mínima, genera obligaciones periódicas y puede deteriorarse si no se supervisa.” In plain terms, an empty flat is a money drain, not a free asset. Cromstedt tells owners to count every cost, check their legal and tax status, and get advice before leaving a property unused for years. The Spanish Ministry of Finance also points out that the fiscal rule applies even if the flat is not rented. Article 85 of the IRPF law imputes income for urban properties that are not the owner's main home and are not used for business. The tax is split by ownership share and time held.
AEFI warns that many owners miss the real cost of vacancy. They look only at IBI or community fees and forget about maintenance, insurance, and utilities. The association's numbers do not include mortgage payments, big repairs, or special community charges. If these come up, the yearly cost can shoot much higher. Also, the costs for maintenance, utilities, insurance, and "local taxes" can change a lot depending on the city, the size and condition of the flat, the insurance policy, and the owner's tax situation. This is confirmed by official sources.
Municipalities must specifically include IBI surcharges for vacant homes in their local tax regulations. In cases where a property remains empty for more than two years without valid reason, the IBI can be increased, and for owners with four or more properties, the surcharge may reach up to 150% after prolonged vacancy.
Some cities now punish long-term vacancy. The IBI can go up by 50% if a flat is empty for more than two years. After three years, it can double, especially for owners with several empty flats. A normal 700-euro IBI bill could jump to 1750 euros, depending on local rules. But not every empty flat gets hit. If you use the flat as a second home, that can count as a valid reason. The "vacant" label depends on several factors and city rules. So, not every unsold or unrented flat will face a big IBI hike.
AEFI's numbers assume a well-kept flat in a mid-sized city. Real costs can swing a lot. Old buildings, luxury extras, or sudden repairs can push expenses far above 5000 euros. A simple, tidy flat in a cheaper area may cost less. Still, the base cost is never small.
Some still see Spanish property as a safe place for savings. The last decade saw home prices jump over 80%. Many believe “investing in bricks” is always smart. But AEFI's data shows the hidden costs of vacancy can eat away returns, especially if the flat sits empty for years.
Spain's property market changes fast. Madrid's used car market recently surged ahead of the rest of Spain, as reported earlier. The cost of holding empty flats is rising just as quickly. Owners who ignore these costs may see their investment turn into a money pit.
AEFI's message is blunt. Leaving a flat empty in Spain is expensive. Owners who do not count every cost—from maintenance and taxes to insurance and city penalties—may find that bricks and mortar come with a heavy yearly bill. Anyone thinking of keeping a home vacant needs to face the real numbers now.
