14 July 2026
You might be paying more taxes than you should… or perhaps you're not paying the taxes you owe.
Every year, thousands of foreigners buy property in Spain, spend extended periods here, or decide to invest, thinking that, as non-tax residents, they will have few obligations to the Spanish Tax Agency. This is a widespread misconception… and also one that ends up causing the most problems.
We frequently receive inquiries from people who have been coming to Spain for years, own an apartment on the Costa del Sol, or receive rental income, and discover, too late, that they should be filing tax returns even though they have never filed a Spanish income tax return.
The reality is simple: you don't need to be a tax resident in Spain to have to pay taxes in Spain.
Owning property in Spain can already generate tax obligations
One of the most common cases is that of a foreign national who buys a property to enjoy on vacation. They don't earn income, they don't rent it out, and therefore think that there are no tax obligations.
However, Spanish law stipulates that, under certain circumstances, even a vacant property can generate imputed income for tax purposes. In other words, the Spanish Tax Agency (Hacienda) presumes that the property generates income and requires its declaration through the Non-Resident Income Tax (IRNR).
This situation is particularly surprising to property owners from the United Kingdom, Germany, the Netherlands, Belgium, or Nordic countries, where tax treatment may differ.
Renting a property must also be declared
When a property is rented out, even if only during the summer months or through tourist rental platforms, tax obligations increase.
Many foreign owners believe that it is sufficient to declare this income in their country of residence. In reality, if the property is located in Spain, this income is usually taxed here, without prejudice to the application of any double taxation treaty that may exist between Spain and the taxpayer's country of residence.
Proper tax planning avoids paying taxes twice on the same income and, above all, avoids unnecessary penalties.
The most common mistake: confusing the NIE with tax residency
This is a very common misconception.
Having an NIE does not make anyone a Spanish tax resident. Similarly, owning a home, a bank account, or even a business in Spain does not, in itself, determine where taxes must be paid.
Tax residency depends on several factors established by law, including the length of stay in Spain, the location of the main center of economic interests, and certain family circumstances.
That is precisely why it is so important to analyze each case individually. Two people who appear to be in the same situation can receive completely different tax treatment.
Selling a home does not end tax obligations either
Many foreign homeowners believe that once the deed of sale is signed, they have fulfilled their tax obligations.
Nothing could be further from the truth.
When a non-resident sells a property in Spain, the transaction has specific tax consequences. In addition to declaring any potential capital gain, regulations require the buyer to withhold a percentage of the sale price and pay it to the Tax Agency as an advance payment of the tax that may be due from the seller.
Failing to take this mechanism into account often leads to many questions and, sometimes, delays in the refund of overpaid amounts.
Spain has agreements to avoid double taxation
One of the most common concerns of our international clients is whether they will have to pay taxes in both Spain and their home country.
The answer depends on the double taxation agreement signed between the two countries.
Spain maintains an extensive network of international agreements whose objective is precisely to prevent the same income from being subject to double taxation. However, to benefit from these rules, it is essential to apply them correctly and, where applicable, prove tax residency in the other country. Prior planning usually saves a lot of trouble. In tax matters, it is almost always easier to prevent than to correct.
Before buying a home, investing in Spain, relocating, or renting a property, it's advisable to analyze the applicable taxes and obligations that will need to be met in the following years.
In many cases, a simple preliminary consultation can prevent penalties, surcharges, or audits by the Tax Agency.
Specialized advice makes all the difference
International taxation combines Spanish regulations, international treaties, and, in some cases, the legislation of the taxpayer's country of origin. For this reason, there are no one-size-fits-all solutions.
At Vox Legis Abogados, we regularly advise foreign nationals with interests in Spain, analyzing each situation from a tax, civil, and real estate perspective so they can invest, reside, or acquire assets with maximum legal certainty.
Because when it comes to assets, a sound decision made before signing can prevent many problems later.