UK Spain Double Taxation Agreement Explained

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Moving to Spain changes where you pay tax, but not on the day you land, and not always in the way people expect. Spain decides tax residence on its own rules. The UK decides on its own, different rules. Where both say you are resident, the UK–Spain double taxation convention settles it and decides which country taxes each kind of income.

This guide explains the tests, what the treaty does with the income British movers usually have, and the steps that stop you paying twice. It is general information, not tax advice.

When you become tax resident in Spain

Under article 9 of Spain's income tax law you are tax resident for a calendar year if any one of these applies:

You spend more than 183 days in Spain in that calendar year. Short trips away (sporadic absences) still count as days in Spain unless you can prove you are tax resident in another country, normally with a certificate from that country's tax authority.
Spain is the main centre of your business activities or economic interests, for example where most of your income comes from or most of your assets are.
Your spouse (not legally separated) and dependent children under 18 live in Spain. This creates a presumption that you are resident too, which you can rebut by proving otherwise.

Three points catch people out.

The year runs January to December. The UK tax year runs from 6 April. Spain's year is the calendar year, and Spain has no general split-year rule: if you are resident for a year, Spain taxes your worldwide income for that year. Where you were UK resident for part of it, the treaty decides who gets which months. Get advice on your first and last years.

Your visa is not your tax status. A non-lucrative visa, digital nomad visa or TIE says you may live in Spain; it does not make you tax resident. In practice most people who live here on those permits spend more than 183 days a year in Spain and become resident anyway.

Days are counted, not intentions. Keep flight confirmations, boarding passes and a simple day log from the start.

The UK side: leaving the UK tax net

The UK uses the Statutory Residence Test, which looks at days spent in the UK and your ties there (family, a home available to you, work, and days spent in the UK in previous years). In the tax year you leave, you may qualify for split-year treatment, so that the UK only taxes you as a resident up to your departure date. Tell HMRC you are leaving, usually on form P85 if you do not file self-assessment, or on your return if you do.

UK income such as rent from a UK property stays taxable in the UK even after you leave, and keeps going on a UK return.

If both countries say you are resident: the tie-breaker

It is common to be resident in both countries under their own rules, especially in the year you move. Article 4 of the treaty then decides residence in this order:

Permanent home. Where you have a home permanently available to you. A UK house you have let on a long tenancy usually does not count; one standing empty and waiting for you does.
Centre of vital interests. If you have a permanent home in both, the country with which your personal and economic relations are closer: where your family lives, where your doctor, social life, bank and income are.
Habitual abode. Where you spend more of your time.
Nationality. If it is still undecided, the country of which you are a national.
Agreement between the two tax authorities.

Keeping a furnished UK home, UK bank accounts and a UK GP while living mostly in Spain makes the answer less clear. That does not make it wrong, but it does make good records more important.

Which country taxes what

The convention was signed in 2013 and replaced the old 1976 treaty. It is a bilateral agreement between the UK and Spain, so Brexit did not change it. In outline, for a Spanish tax resident:

Income	Taxed in	Notes
UK State Pension	Spain only	Paid gross by the DWP; declare it on your Spanish return.
Private and workplace pensions (SIPPs, personal pensions, company schemes)	Spain only	Ask HMRC for a no-tax (NT) code so UK tax is not deducted.
Government service pensions (for example civil service, armed forces, police, teachers, NHS, local government)	UK only	Spain still counts the pension when setting the rate on your other income. If you are also a Spanish national, Spain taxes it instead.
Rent from UK property	Both	The UK taxes it first; Spain taxes it too and gives credit for the UK tax.
Gains on selling UK property	Both	Credit in Spain for UK tax paid.
UK bank and savings interest	Spain only	Includes interest inside an ISA.
Dividends from UK companies and funds	Spain	The UK does not normally withhold tax on dividends.
Salary for work you do in Spain	Spain	Including remote work for a UK employer. Social security is a separate question.

Which pension sits in which row matters a great deal. A pension from a UK public body is not always a government service pension, so check how your scheme is classed before you rely on the table.

What the Spanish tax bill looks like

Spain splits income into two parts. General income (pensions, salaries, rent) is taxed on a progressive scale set partly by the state and partly by your region, rising from 19% to 45% or more at the top depending on where you live. Savings income (interest, dividends and gains) is taxed at 19% on the first €6,000, then 21%, 23% and 27%, and 30% above €300,000.

The annual return, the renta, is filed from early April to 30 June for the previous calendar year. Separately, if you hold more than €50,000 in assets abroad in any category, you file modelo 720 by 31 March.

Step by step in your first year

Plan your move date with both tax years in mind, and keep a day log from the start.
Tell HMRC you are leaving (P85 or your self-assessment return) and claim split-year treatment if it applies.
Get your NIE and register with the Spanish tax agency, through your gestor or with modelo 030, so your tax address is in Spain.
Ask the Spanish tax agency for a certificate of tax residence once you qualify, and send it to HMRC with form Spain-Individual to stop UK tax on private pensions and to reclaim any overpaid.
File your first renta between April and 30 June after your first Spanish tax year, and your first modelo 720 by 31 March if you are over the thresholds.
Keep filing in the UK if you still have UK rental income.

Common mistakes

Thinking 183 days is the only test. Your economic interests or your family's residence can make you resident with fewer days.
Staying just under 183 days and assuming that settles it. If your home, partner and income are in Spain, Spain can still treat you as resident, and the UK may too.
Paying UK tax on a private pension because nobody asked HMRC for an NT code. You can reclaim it, but it takes months.
Declaring a government pension as if it were taxable in Spain, or leaving it off altogether. It is exempt in Spain but still has to appear on the return so the rate on your other income is right.
Assuming ISAs and other UK tax breaks follow you. They do not. See our guide to UK pensions, ISAs and wills.
Taking UK tax-free cash after becoming Spanish resident without advice. Spain does not recognise the UK's 25% tax-free lump sum.

When to get professional help

A Spanish asesor fiscal who regularly works with British clients is worth paying for your first year, and essential if you have UK rental property, a business, share options, a large pension pot or a move part-way through a year. Ask for a written note of your residence date and how each income will be treated. If you are moving to Spain to work for a Spanish employer, ask about the special regime in our Beckham Law guide before you arrive, because the deadline to apply is short.

Key takeaways

Spanish tax residence: more than 183 days in a calendar year, or your main economic interests in Spain, with a presumption if your spouse and minor children live here.
Spain uses the calendar year and has no general split year; the UK may give you split-year treatment.
Where both claim you, the treaty looks at permanent home, then centre of vital interests, then habitual abode, then nationality.
State and private pensions: Spain. Government service pensions: UK, unless you are also Spanish.
Keep a day log, tell HMRC, get an NT code and file the renta every year.

Sources and review date

Reviewed on 11 October 2026.

Spanish Tax Residency and the UK–Spain Double Tax Treaty