British or American in the Balearics: where do you actually pay tax?

If you spend more than 183 days a year in the Balearics, you are generally a Spanish tax resident, and you must declare your worldwide income to Spain through the "declaracion de la renta", filed between April and the end of June. For British residents, a double tax treaty prevents you from being taxed twice on the same income. For Americans, it is more complex: the United States taxes its citizens on worldwide income regardless of where they live, so you will likely need to file in both countries every year. Here is how the rules actually break down, from the 183-day test to your island's tax office.

A note before you start: cross-border tax between Spain and the UK or US has real edge cases (pensions, property back home, self-employment, the Beckham Law). This article gives you a solid, reliable framework, but for your personal situation, get your choices validated by an accountant or tax advisor on both sides of the border. It is money well spent.

Are you actually a Spanish tax resident?

This is the first question, and everything follows from it. You count as a Spanish tax resident if you meet at least one of these criteria:

• you spend more than 183 days in the calendar year in Spain (temporary absences often still count toward the total);
• the centre of your economic interests is in Spain (your main activity, your main sources of income);
• your spouse and minor children habitually live in Spain (a presumption that can apply).

If any of these apply, Spain treats you as a resident and taxes your worldwide income under the IRPF (personal income tax). In other words, a salary paid in London or New York, and rental income from a flat back home, both enter the calculation. If you stay under 183 days and your centre of life stays in the UK or US, you generally remain a tax resident there instead, and Spain only taxes your Spanish-source income.

Will a British resident be taxed twice?

No. The UK-Spain double taxation treaty, in force since 12 June 2014 (with effects from the OECD's Multilateral Instrument applying since 2023), allocates taxing rights between the two countries and prevents double taxation, mainly through a tax credit mechanism. A few useful reference points once you are settled in the Balearics:

• UK property generally stays taxable in the UK (rental income, capital gains on sale).
• UK government pensions (civil servants, crown employees) generally stay taxed in the UK.
• Private and state pensions are generally taxed in your country of residence, so in Spain if you live in the Balearics, though the treaty has specific provisions worth checking with an advisor.

Why do Americans have to file in two countries?

Because the US taxes its citizens on worldwide income regardless of residence, one of the only countries in the world to do so. As a US citizen living in the Balearics, you generally still need to file a US federal return every year, on top of your Spanish declaracion de la renta if you meet the residency test. Two mechanisms limit double taxation in practice: the Foreign Earned Income Exclusion (FEIE), which lets you exclude a set amount of foreign earned income from US tax (a figure that adjusts yearly and sat close to $130,000 for 2025, verify the current year's figure with the IRS), and the US-Spain tax treaty (1990, updated by a 2013 protocol), which addresses double taxation on some other income categories. Beyond income tax, US citizens with foreign financial accounts totalling more than $10,000 at any point in the year must also file an FBAR (Foreign Bank Account Report) with the US Treasury, a separate and strictly enforced obligation.

When and how is the Spanish "renta" filed?

The annual filing campaign, the declaracion de la renta, runs every year from April to the end of June and covers the previous year's income. You file it online through the Agencia Tributaria's (AEAT) Sede Electronica, using a digital ID (electronic certificate, Cl@ve, or a reference number).

On rates, Spain's IRPF combines a national portion and a regional portion, the latter set by each autonomous community, including the Illes Balears. Combined, the marginal rate can climb to around 54 percent on very high incomes. To check the exact regional scale applied in the Balearics for the year you are filing, verify it on the AEAT portal, that is the only figure that matters at filing time.

What forms do you need if you keep assets back home?

This is the point that catches new arrivals out most. As a Spanish tax resident, you may have extra reporting obligations on what you hold outside Spain, including in the UK or US:

• Modelo 720: an informational declaration of assets and accounts held abroad (bank accounts, securities, property) once you exceed 50,000 euros per category. Penalties, once very harsh, were scaled back to reasonable levels after Spain was sanctioned by the EU's Court of Justice in 2022, but the obligation to declare still stands.
• Modelo 721: the equivalent for cryptocurrency held abroad.

Do not skip these on the assumption that "it's just informational": that is exactly the kind of oversight that ends up costing money.

Just arrived for work? The Beckham Law

If you moved to the Balearics for a professional reason, you may qualify for the impatriate regime (the "Beckham Law"), which lets you be taxed at a flat 24 percent on Spanish-source income for up to 6 years, instead of the standard progressive scale. Digital Nomad Visa holders are explicitly eligible under the Startups Law. We cover the eligibility criteria and the strict six-month filing deadline in our guide to the Beckham Law in the Balearics. This regime has strict eligibility rules and is not advantageous in every situation, a decision best made with an advisor before you file.

Where is the tax office (AEAT) on your island?

For income tax, your point of contact is the AEAT (Agencia Tributaria, the national tax agency). Here are the addresses verified on the official AEAT portal as of 31 July 2026. General opening hours are Monday to Friday, 9am to 2pm.

For an appointment, use the cita previa booking system through the Agencia Tributaria's Sede Electronica: it is the most reliable channel, and it saves you a wasted trip.

Don't confuse AEAT with ATIB

One habit worth building: the AEAT handles income tax (IRPF) and national taxes. The ATIB (Agencia Tributaria de les Illes Balears, at atib.es) handles regional taxes managed by the Balearic Govern, such as transfer tax or wealth tax. For your renta, it is the AEAT, not the ATIB.

Frequently asked questions

I split my time between the Balearics and home, where do I file?

Past 183 days a year in Spain, you are generally a Spanish tax resident and file your worldwide income with the AEAT via the renta. UK residents rely on the 2014 double tax treaty to avoid paying twice; US citizens generally still file a US return every year on top of that, wherever they live.

I kept a bank account and property back home, do I need to report it?

Yes, if the value exceeds 50,000 euros per asset category: that is what Modelo 720 covers. For cryptocurrency held abroad, it is Modelo 721. Americans have a separate, additional FBAR obligation with the US Treasury once foreign accounts exceed $10,000.

Do Americans really have to file taxes in both countries every year?

Generally yes. The US taxes citizens on worldwide income regardless of residence. The Foreign Earned Income Exclusion and the US-Spain tax treaty reduce double taxation in practice, but they do not remove the US filing requirement itself.

One more thing worth repeating: this article gives you the general, reliable framework, not tailored advice. International tax comes down to the details of your situation. Before filing your first renta in the Balearics, get support from a gestor or tax advisor on both sides. Sources: Agencia Tributaria (sede.agenciatributaria.gob.es), IRS.gov, and gov.uk. Information verified in August 2026. The Daily Baleares is an AI-assisted publication with human review.