Tax Obligations for UK Citizens with Property in Spain

Tax obligations for UK residents' properties are always present in the UK, whether the property is in the UK or any other part of the world. Owning a property in Spain can be an exciting investment or a holiday retreat, but it comes with specific tax obligations. Whether you rent it out or keep it as a second home, both Spanish and UK tax authorities may expect filings.

Spanish Taxes on Property Ownership

Let’s begin with the taxes in Spain that you will have to pay.

Non-Resident Income Tax

These tax obligations exist regardless of your residence status in the UK or any other country. Owning a property in Spain will bring taxes with it.

Imputed Income

Imputed income tax is charged when a property in Spain is not rented out. This tax is based on a percentage of the property’s value, which is the value assigned by the local municipality for tax purposes. The imputed income rate is 2% of the cadastral value (Cadastral value is an administrative monetary value assigned to a property by the authorities, recorded in the Land Registry) or 1.1% if the cadastral value has been revised in the last ten years. The tax rate applied to this imputed income is 24% for UK citizens post-Brexit. This is charged annually.

Rental Income

Non-residents must disclose their rental income received. One must be aware of the changes that have occurred post-Brexit. The tax rates and deductions pre- and post-Brexit are as follows:

Capital Gains

The capital gains tax rate for the property in Spain remains the same, regardless of the owner’s residency status. Both before and after Brexit, UK citizens are subject to a flat rate of 24% on any gains from the sale of property. Expenses related to the acquisition and sale of the property, such as legal fees, improvement costs, and agent commissions, remain deductible for non-residents, including those from non-EU countries. The buyer withholds 3% of the sale price at completion, which is credited against your final CGT liability.

Property Tax

All property owners in Spain, whether residents or non-residents, are subject to local property tax. The rate varies according to the property’s location and the local municipality’s regulations.

Wealth Tax

Non-resident property owners in Spain may also be required to pay wealth tax if their worldwide assets exceed specific thresholds. The rates and thresholds for 2025 in different regions are as follows:

Special Considerations

Double Tax Agreement (DTA)

The UK and Spain have a Double Tax Agreement to prevent double taxation on income and gains. This agreement allows UK citizens to offset the Spanish tax paid on their rental income or capital gains against their UK tax liability on the same income or profits.

Deadlines for Annual Tax Returns (Beginning in 2025)

The following are the non-resident tax filing deadlines in Spain starting in 2025:
Income Imputed:

Imputed Income Tax (Renta Imputada)

If you don’t rent out your Spanish property and only use it personally, you still need to file an Imputed Income Tax return. This is based on the ‘theoretical rental value’ of your property and must be filed annually via the Modelo 210 form.

Rental Income Tax

If you rent out your property, even for part of the year, you must declare the actual rental income and pay tax accordingly.

Whilst you can’t file your Rental Income Tax before the filing window in January, you can start documenting all your expenses directly with Iberian Tax’s expense tracker. Our handy new tool allows you to store all the necessary receipts and documents in one place, so when January arrives, you’ve got everything in hand.

Capital Gains Tax

If you sell your property in Spain, you may also be liable for Capital Gains Tax, which is filed within four months of the sale date.

Consequences of Missing Tax Obligations

There may be serious repercussions if Spanish tax obligations are not met. Penalties for up to four tax years may be applied retroactively by the Spanish tax office (Hacienda) after reviewing tax returns. Penalties for non-residents who voluntarily disclose prior periods are reduced to no more than 15% of the tax due. The penalties are considerably harsher, beginning at 50% of the tax due if the tax office requires the submission. This significant disparity emphasises how crucial prompt tax filing and diligent compliance are.

Late Payment Costing You Dearly

Spain’s General Tax Law is crystal clear and brutally unforgiving. If you’re supposed to file and you don’t? Expect surcharges and penalties that could soar up to 150% of what you owe.

And that’s only if you file late but voluntarily.

If Hacienda has to chase or nudge you for it? That’s when the real pain starts. The base fine is 50% to 150% of what you owe. Ouch. And no, claiming you “forgot” doesn’t cut it.

That said, if you settle up quickly after they notify you, you might be eligible for a 25% discount. A tiny mercy.

UK nationals can prevent unforeseen liabilities and guarantee compliance with Spanish tax regulations by being aware of these tax requirements. Even though Brexit has brought about certain negative changes, UK property owners in Spain must be mindful of and proactive about their tax obligations.

UK Tax Obligations

Even though your property is located in Spain, HMRC still has a say in how it is taxed. Even if you are a UK citizen, your residency status matters. If you are currently not a resident of the UK, none of these taxes for your Spanish property have to be paid in the UK. However, as a UK citizen, you are taxed on your worldwide income and gains, which means you must continue to report Spanish rental income, capital gains, and any inheritance exposure to HMRC. The UK–Spain Double Taxation Treaty prevents you from paying tax on the same income or gain twice, but it does not exempt you from the obligation to declare all income in the UK.

Since HMRC is still expecting you to pay your taxes. Let’s take a look at different types of taxes:

Rental Income

If you let out your Spanish property, the rental income must be included on your UK Self-Assessment return. HMRC taxes you on the net profit (rental income minus allowable expenses), but the treatment of mortgage interest is more restrictive in the UK than in Spain. Even if you have already paid Spain’s 24% non-resident tax, you must still declare the income to HMRC.

Capital Gains Tax (CGT)

When you sell the property, both countries want their share. Spain imposes a 3% withholding on sales and taxes the gain locally. In the UK, you must also report any capital gains on your Self-Assessment tax return by 31 January following the tax year the sale occurred.

Inheritance Tax (IHT)

If you are a long-term resident in the UK, your estate is subject to IHT on worldwide assets, including property in Spain. Spain also levies its own inheritance tax on assets located there, which means both systems may apply at once.

Other Reporting Duties

Even if the Spanish property is never rented out, HMRC may still expect disclosure if it produces deemed income in Spain or when you eventually sell it. High-value or complex holdings can also trigger extra reporting requirements for foreign assets.

In summary, Spain taxes first because the property is there, but the UK expects full reporting on your side. The treaty helps avoid double taxation, but in many cases, you still end up paying whichever country charges the higher rate.

Double Taxation Relief

One of the biggest concerns for UK citizens with property in Spain is whether they will be taxed twice on the same income or gain. Fortunately, the UK–Spain Double Taxation Treaty exists precisely to deal with this issue. While it does not eliminate the need to file in both countries, it ensures that the same income is not taxed twice in full.

The general principle is straightforward: Spain has primary taxing rights because the property is physically located within its borders. Once you have settled your Spanish liability, you then declare the income or gain in the UK. HMRC allows you to claim a credit for the tax already paid in Spain, but if the UK rate is higher, you must make up the difference.

In practice, the treaty protects you from full double taxation, but it does not always level the playing field. Instead, you usually end up paying whichever country charges the higher rate, with Spain taking the first cut and the UK topping it up if necessary.

Practical Compliance Points

Understanding the rules in theory is one thing, but dealing with them in real life is another. Many UK citizens with property in Spain get caught out not because they wanted to avoid tax, but because they didn’t know what forms to file, or when. Getting the compliance side right means less stress, fewer penalties, and a smoother experience when HMRC or the Spanish authorities come calling.

In Spain, non-residents must file regular tax returns. If you rent out your property, you’ll use Modelo 210 to declare rental income, typically on a quarterly basis. Even if you don’t rent the property at all, Spain still charges “imputed income tax” on second homes, which is also reported on Modelo 210, but on an annual basis. Additionally, there is the IBI (Impuesto sobre Bienes Inmuebles), a municipal property tax similar to the UK council tax, which is billed annually. If your property falls into wealth tax territory, or if your region has active inheritance tax rules, those will require additional filings.

In the UK, things are no less paperwork. If you have rental income, you’ll need to include it in your Self-Assessment tax return each year. If you sell the property, you must file a Capital Gains Tax return within 60 days, paying any tax due immediately. HMRC no longer waits for the year-end. For inheritance, it’s important to remember that UK IHT applies to worldwide assets, so Spanish property must be valued and declared if your estate crosses the thresholds.

The takeaway is that Spain taxes you because that’s where the property is, and the UK taxes you because that’s where you live. Filing in both places isn’t optional; it’s essential. With Brexit removing many of the old EU advantages, compliance has only become stricter. Staying on top of the paperwork not only keeps penalties at bay but also ensures you don’t accidentally pay more than you need to.

Summary Table: Spain vs UK

Conclusion

Owning a property in Spain as a UK citizen can be beneficial and rewarding, but it also brings a set of tax responsibilities. Spain will always tax first because the property is located there, while the UK expects full reporting under its worldwide income rules. The Double Taxation Treaty helps prevent you from being taxed twice in full, but in practice, you often pay whichever country charges the higher rate.

The real challenge is not just understanding the rules but staying on top of the filings and deadlines in both countries. Missing these can lead to costly penalties, while proper compliance allows you to make use of reliefs and avoid paying more than necessary.

In short, Spanish property ownership can be both enjoyable and financially sound, provided you take the time to understand your obligations and keep both tax authorities satisfied. With Brexit tightening the rules for UK nationals, a proactive and well-informed approach is the best way to protect your investment and enjoy your home abroad with peace of mind.