Returning to the UK from Spain (2026): Exit Tax, Modelo 720 & FIG Regime

Why Spain Makes the Return Deceptively Complex

Spain is comfortable for British expats. Then they decide to return, and the planning gap becomes apparent.

Spain has departure tax on shareholdings. The UK has a residence-based tax system. Spain requires annual Modelo 720 declarations of overseas assets. The UK applies aggressive anti-avoidance rules to incoming residents. Critically, Spain does not forgive exit planning gaps after you have already left.

Returning to the UK is not the reverse of moving to Spain. The return involves re-entering a tax system that has changed significantly, with new rules on inheritance tax, capital gains relief, National Insurance and pension access.

Key risks for British expats in Spain:

• Spanish shareholding exit tax - triggered on departure if you hold significant company shares or investment entities
• Modelo 720 compliance - mandatory overseas asset declarations with severe penalties for non-compliance
• Spanish property retained - subject to UK capital gains tax and complex Spain-UK tax treaty rules on rental income
• UK inheritance tax exposure - now residence-based, applying to worldwide assets once you hit the 10-year threshold
• The timing gap - difference between March and April return dates can determine whether an entire year of UK income tax applies

Spanish Exit Tax: When Shareholdings Trigger a Liability

Spain applies an exit tax on certain shareholdings when a tax resident leaves the country or ceases to be tax resident. This is not income tax. It is a departure tax assessed on the unrealised gain in the shareholding, and it can be substantial.

The exit tax applies if:

• You have been a Spanish tax resident for at least 10 of the previous 15 years, AND
• You hold shares worth more than EUR 4,000,000, or
• You hold shares representing 25% or more of an entity valued above EUR 1,000,000

If both conditions are met, you are deemed to have disposed of the shares at fair market value on the date you cease to be Spanish resident. The gain (current value minus original cost basis) is taxable at approximately 30% (12.8% income tax plus 17.2% social charges). This is assessed in the year of departure, not over time.

For example, if you hold shares worth EUR 5,000,000 that you acquired for EUR 1,000,000, the taxable gain is EUR 4,000,000. The exit tax would be approximately EUR 1,200,000. This is due immediately, and it cannot be deferred unless the Spain-UK double taxation treaty provides relief (which it does, but only under specific conditions).

The critical planning points are:

• The Beckham Law exception - if you used Spain's preferential Beckham regime (which required electing to be taxed as a non-Spanish resident on certain income), the years spent under that regime do not count towards the 10-year threshold. This can significantly delay when exit tax applies
• The 15-year holding exemption - if you can demonstrate that the shares have been held for 15 years continuously, the exit tax may be waived. But the holding period must be uninterrupted, and Beckham Law years do not count
• The Spain-UK treaty deferral - the treaty allows deferral of the exit tax if you remain a UK resident and do not dispose of the shares within a 10-year period. But this requires specific filing and compliance
• Currency exposure - the EUR 4,000,000 and EUR 1,000,000 thresholds are measured in euros. If your shareholding is denominated in another currency, the conversion rate at the time of assessment determines whether you cross the threshold

The practical implication is clear. If you hold significant shareholdings and have been Spanish resident for less than 10 years, you can leave without exit tax. If you have been resident for 10 of the last 15 years, you must model the exit tax exposure and consider whether deferral under the treaty is available.

Modelo 720: The Overseas Asset Declaration Trap

Every Spanish resident is required to file an annual Modelo 720 declaration if they hold overseas assets exceeding EUR 50,000 in value. This is not optional. And the penalties for non-compliance or late filing are severe.

Modelo 720 covers:

• Overseas bank accounts
• Investment portfolios held abroad
• Overseas property (real estate and any beneficial interests)
• Foreign-held shares and investment vehicles
• Overseas business interests

The threshold is EUR 50,000 per person per category of asset. If you have EUR 40,000 in one UK bank account and EUR 20,000 in another, the declaration is required because the accounts are aggregated. If you fail to file, or file late, the penalties are punishing. AEAT (the Spanish tax authority) typically assesses:

• EUR 10,000 minimum for non-filing
• 50% of the omitted value (or EUR 100,000, whichever is lower) for late filing
• Additional penalties of EUR 100 per day of delay

For someone with GBP 500,000 in UK savings, the non-filing penalty could be EUR 10,000 plus 50% of EUR 550,000 (approximately EUR 275,000), totalling over EUR 280,000. This is devastating, and it is not uncommon in expat cases.

Modelo 720 must be filed annually by 31 March in Spain. If you are planning to return to the UK, you will need to:

• File Modelo 720 up to and including your final year of Spanish residency (which depends on when you cease to be tax resident)
• Declare all overseas assets as at 31 December of that year
• Ideally, liquidate Modelo 720-reportable assets before the cut-off to reduce your exposure

Once you leave Spain and become UK tax resident, you no longer need to file Modelo 720. But you will need to notify Spanish authorities of your departure through the Cambio de Residencia process, and you must ensure that your final Modelo 720 return is filed correctly.

The Statutory Residence Test: When the UK Clock Restarts

The Statutory Residence Test (SRT) is the framework that determines whether you are UK tax resident for any given tax year. It is not discretionary. It applies automatically, and it operates on a strict day-count system with clear thresholds.

If you spend 183 or more days in the UK during a single tax year (6 April to 5 April), you are automatically UK tax resident. There is no exception, no planning around it, no appeal. A day is counted if you are in the UK at any point during the day, even if you only arrive in the evening.

If you spend fewer than 183 days, your residency depends on the number of connections, or "ties," you maintain to the UK. The ties that count are:

• A spouse, civil partner or minor children living in the UK
• Available accommodation in the UK that you occupy for periods during the year
• Substantive UK employment, defined as 40 or more working days in each of three consecutive years
• Spending 90 or more days in the UK in either of the previous two tax years
• The UK being the country where you spend the most time that year

For someone returning from Spain after a long absence (non-resident for the previous five or more tax years), the day-count thresholds are different and more generous. You would need four or more ties to be classed as resident if you spend between 46 and 90 days in the UK, three ties for 91 to 120 days, and two ties for 121 to 182 days.

This is where the date of your return becomes a financial decision, not just a logistical one. If you return to the UK in March, you will inevitably exceed 183 days by 5 April and become UK tax resident for the entire 2025/26 year. If you return in May, you start fresh from 6 April and your residence position depends on the day count and ties in that new year. A single month's difference can determine whether an entire year of foreign income falls inside or outside the UK tax net.

This is why the hidden tax consequences that surface when UK residency restarts are so frequently missed by returning expats who focus on the logistics of the move rather than the tax calendar. The Statutory Residence Test is a blunt instrument, but it is predictable. Knowing when you cross the 183-day threshold is the first step to managing the financial impact.

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The Four-Year FIG Regime: Your Return Window

From 6 April 2025, the UK introduced a new Foreign Income and Gains (FIG) regime that fundamentally changed how returning expats are taxed. This is the single most valuable relief available to long-term residents returning from Spain.

If you have been non-UK resident for at least 10 consecutive tax years before your return, you qualify as a "qualifying new resident." For the first four tax years of your UK residence, you can claim 100% exemption on:

• Foreign employment income (salary, bonus, benefits)
• Foreign investment income (dividends, interest, rental income from overseas)
• Foreign capital gains (disposals of non-UK assets, including Spanish shareholdings)

During this four-year window, you can bring foreign income and gains into the UK without paying UK tax on them. This is a fundamental change from the previous remittance basis, which required non-doms to keep foreign income offshore to avoid tax. Under FIG, you can bring it onshore, spend it, invest it in the UK, and remain untaxed.

For a Spanish-based expat who has been out of the UK for 10 or more years, this regime creates a protected corridor. Your overseas shareholdings, foreign rental income and offshore investment gains remain tax-free for up to four years after your return. But you must have been non-resident for the full 10-year qualifying period, and the 10-year threshold is absolute. If you left the UK in 2015 and return in 2026, you have been non-resident for 10 full tax years and you qualify. If you left in 2017, you do not. There is no flexibility here.

The practical implication is clear. If you hold Spanish shareholdings subject to the exit tax and can defer that tax under the Spain-UK treaty, you can dispose of them during the FIG window without UK capital gains tax. You can also bring the proceeds into the UK, restructure them, and reinvest without tax drag during those first four years.

But the window closes after four years. From year five onwards, your UK residency status changes, and any remaining foreign income and gains become taxable. This is why the deployment of offshore assets, the timing of shareholding disposals and the sequencing of investment consolidation all matter enormously in the first four years after your return.

Income Tax: Shifting from Spanish to UK Rates

UK rates for 2025/26 are:

• Personal allowance: GBP 12,570
• Basic rate: 20% on GBP 12,571 to GBP 50,270
• Higher rate: 40% on GBP 50,271 to GBP 125,140
• Additional rate: 45% above GBP 125,140

For a returning expat earning GBP 200,000+, the effective rate including National Insurance is approximately 42-45%. This is a significant shift from low-tax Spain.

Key planning points:

• If you qualify for FIG, foreign income remains exempt - UK employment is taxable, but foreign income stays tax-free for four years
• UK rental income is taxable from day one - assessed alongside employment income, potentially triggering 45% rate
• Dividend allowance is now only GBP 500 - almost all dividend income above this is taxable at 39.35-43.75%
• Pension withdrawal is taxable income - flexible drawdowns above the tax-free lump sum count as income

Practical sequence:

• Model UK employment plus any UK rental income or pension drawdown
• Maximise pension contributions in your first UK year for tax relief
• Deploy offshore income under FIG to minimise exposure
• Use marriage allowance if spouse is lower earner

Capital Gains Tax: Spanish Property and UK Exposure

The UK annual CGT exempt amount is just GBP 3,000 (down from GBP 12,300). Rates from April 2025 are 18% (basic rate) and 24% (higher rate). Business Asset Disposal Relief is 14% (rising to 18% from April 2026).

For Spanish property:

If you sell before becoming UK resident, Spanish CGT applies (19-30% progressive). Spain also applies a "plusvalia" municipal tax and a 3% withholding for non-resident sellers.

If you sell after becoming UK resident, both UK CGT (18-24%) and Spanish CGT apply. The Spain-UK treaty allows credit for Spanish tax paid in your UK Self Assessment, but you may still face a combined burden exceeding either country's rate alone.

For property retained as investment:

Rental income is taxable in the UK (exempt for four years under FIG if you qualify). Capital gains on sale face both Spain and UK tax, with treaty relief available.

Practical approach:

• Realise Spanish property gains before departure if holding substantial unrealised gains
• Model the combined Spain-UK tax exposure using the treaty credit mechanism
• If lived there 15+ years continuously, check if Spain's principal residence exemption applies
• Use the GBP 3,000 annual exempt amount strategically across years

Spanish Property Retained While UK Resident

Many British expats return to the UK whilst retaining Spanish property as an investment. The tax implications change immediately once you become UK tax resident.

Rental income:

If you let your Spanish property, the rental income is treated as foreign income for UK tax purposes. Under the FIG regime, it is exempt for four years if you qualify. Expenses (property taxes, maintenance, insurance) are deductible. You must maintain proper records for your UK Self Assessment.

Capital gains on sale:

When you sell, you pay Spanish CGT (19% to 30% depending on the gain) and UK CGT (18-24%). The Spain-UK treaty allows credit for Spanish tax paid, which you must claim in your UK Self Assessment. Spain applies a 3% withholding on non-resident sales, credited against Spanish CGT liability.

Regional variations:

Spain's regions vary significantly on property transfer taxes. Balearics, Catalonia and Madrid each have different rules. Regional wealth taxes may apply even after you leave if you retain property.

Practical sequence:

• File Modelo 720 in your final Spanish tax year
• Maintain meticulous records of rental income and expenses
• Model the combined Spain-UK tax exposure before committing to sale
• Use treaty relief by claiming foreign tax credits in your UK Self Assessment

Pensions: Spanish State Pension and UK Arrangements

Pensions are complex for returning Spanish expats. The typical situation involves a UK workplace pension and Spain's public pension system if you were employed or self-employed there.

Under the Spain-UK double taxation treaty, private pensions are taxed only in the country of residence. Government pensions (including Spanish state pension) are taxable in the UK.

The UK pension annual allowance is GBP 60,000 (2025/26), reducing for high earners. If you set up a QROPS in Spain, review whether it remains appropriate - recent rule changes have removed some previous tax advantages.

Spanish social security contributions (autonomo for self-employed) count towards your Spanish pension. Under the UK-Spain social security agreement, contributions in both countries aggregate to meet thresholds for either pension.

Practical steps:

• Consolidate UK workplace pensions into a SIPP before or shortly after return
• Review overseas pension arrangements for UK compliance
• Understand your Spanish pension eligibility
• Plan contributions and withdrawals to optimise first-year tax relief

The interaction between Spanish social security, UK pension rules and the FIG regime creates significant planning opportunities in your first years after return.

Inheritance Tax: Spain's Regional System vs UK IHT

UK inheritance tax is now residence-based. You become subject to 40% IHT on worldwide assets once you are a "long-term UK resident" (10 of the previous 20 years UK tax resident).

The nil rate band is frozen at GBP 325,000. The residence nil rate band adds up to GBP 175,000 for estates including qualifying residential property left to direct descendants. A married couple can shelter approximately GBP 1,000,000 total, but high-net-worth expats often exceed these thresholds.

Spain's system by comparison:

Spain applies inheritance tax by beneficiary relationship and region, with dramatic variations:

• Andalucia & Madrid: 99% relief for direct descendants (effectively 0% tax)
• Balearics: 100% relief for direct descendants
• Catalonia & Valencia: 20% to 34% depending on relationship

This means a spouse dying as a Spanish resident in Madrid faces minimal inheritance tax, whilst a UK long-term resident's spouse faces 40% on amounts above GBP 325,000.

The Spain-UK treaty allows election of which country's tax applies (residence at death). So even as a UK resident, you can potentially elect Spanish tax on Spanish property, avoiding the 40% rate.

Spousal exemption caveat:

Unlimited spousal transfers now require both being long-term UK residents. If one is not, transfers are capped at GBP 325,000 cumulatively.

The planning window:

If returning after 10+ years abroad, you have a window before the 10-year threshold to structure your estate. Common strategies include lifetime gifting using the GBP 3,000 annual exemption, establishing discretionary trusts, and will planning to maximise nil rate bands.

This is the new residence-based inheritance tax system that replaced UK domicile. The planning must happen before you reach the 10-year threshold.

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National Insurance: Filling Gaps from Spain Years

You need 35 qualifying years for the full new State Pension (GBP 230.25 per week, 2025/26). Each missing year costs approximately GBP 342 annually in lost pension entitlement - GBP 7,000 over a 20-year retirement.

Until April 2026, you can pay voluntary Class 2 NI at GBP 3.50 per week (GBP 182 per year). This has a 15:1+ return on investment over retirement.

From April 2026, Class 2 becomes unavailable. Only Class 3 remains at GBP 17.75 per week (GBP 923 per year) - more than five times the current rate. New Class 3 applicants need 10 qualifying years on their record.

If you have NI gaps from Spain, paying Class 2 before April 2026 is critical. The window closes, and the cost increases fivefold.

Practical steps:

• Calculate your NI gaps from Spain years
• If gaps exceed 5 years and you expect retirement, pay Class 2 contributions
• Submit before 5 April 2026 (final deadline)
• Keep evidence for HMRC records

Modelo 720 and Departure Tax Planning

Your final-year tax obligations in Spain are critical and frequently missed. Spanish tax residency ends when you cancel your NIE, fail to spend 183+ days in Spain in a calendar year, or establish habitual residence elsewhere.

Your final Modelo 720 declaration (due 31 March following your last residency year) must include all overseas assets at fair market value as at 31 December.

Common mistakes:

• Filing Modelo 720 after leaving Spain (triggers residency questions)
• Liquidating assets before the filing deadline (appears deliberate)
• Failing to declare offshore assets (penalties exceed EUR 280,000)
• Using historical cost instead of current market value

Departure sequence:

1. File final Modelo 720 with all overseas assets 2. Submit final Spanish income tax return 3. Calculate and pay exit tax (if applicable) 4. Exit Spanish social security 5. Cancel Spanish residency permit 6. Notify Spanish banks

The interaction between exit tax timing, Modelo 720 deadlines and UK residency creates complexity. A cross-border adviser sequences these correctly and ensures clean departure from Spain's tax system.

How Professional Planning Support Actually Fits

For someone returning to the UK from Spain, professional planning is most valuable when it:

• Models the Spanish exit tax exposure - calculates whether shareholding exit tax applies, and if so, identifies treaty deferral opportunities to defer the tax and pay it over time
• Sequences Modelo 720 filing and asset liquidation - ensures your final Spanish tax return is accurate and your overseas assets are correctly declared to avoid penalties
• Calculates the UK residency timing impact - models March versus May return dates, split-year treatment qualification, and the resulting UK tax exposure for foreign and UK income
• Stress-tests capital gains exposure - many expats underestimate their CGT liability by 30-50% because they have not modelled the Spanish property disposal costs, UK CGT, and treaty relief
• Identifies FIG eligibility and deployment - confirms whether you qualify for the four-year foreign income relief and structures the deployment of offshore assets during that window
• Maps inheritance tax exposure - calculates how long until you become a long-term resident for IHT purposes and identifies planning opportunities before that threshold
• Fills NI gaps at the optimal cost - identifies the payback period for Class 2 contributions before the April 2026 deadline and schedules payments accordingly
• Coordinates across jurisdictions - Spanish exit, UK re-entry, offshore accounts, pension transfers and healthcare registration all need to happen in a specific order

The goal is not to "manage money." It is to manage the transition, so that the wealth you built in Spain survives the departure tax and the UK re-entry tax system intact.

The Soft But Decisive Next Step

If you are reading this and thinking:

• "We have been in Spain for years but have not really planned the return"
• "We have shareholdings but are not sure if exit tax applies"
• "We hold Spanish property and are unsure what the CGT will be when we sell"
• "We do not want to get the Modelo 720 or exit tax wrong"
• "We know the UK tax system has changed but have not mapped what it means for us"

Then the next step is usually a structured conversation focused on clarity, not implementation. Not because something is urgent. But because Spain is the rare environment where calm, unhurried planning is possible, and that window closes the moment you land in the UK.

The best time to build a return plan is whilst you are still earning in Spain, whilst your options are still open, whilst you have not yet filed your departure Modelo 720, and whilst the cost of getting it right is a conversation rather than a correction.

Final Takeaway

Returning to the UK from Spain is not about:

• Finding the cheapest removal company
• Assuming your UK bank account still works
• Thinking your pensions will "sort themselves out"
• Filing your final Modelo 720 at the last minute
• Assuming the Spanish exit tax does not apply to you
• Hoping no one notices your offshore savings

It is about:

• Knowing exactly when Spanish exit tax triggers and whether you can defer it
• Calculating your Modelo 720 obligation and filing it correctly before you leave
• Understanding when UK tax residency restarts and what that means for Spanish property
• Using the four-year FIG regime to protect foreign income and gains during the critical return window
• Mapping the capital gains exposure on Spanish property and using the Spain-UK treaty relief correctly
• Filing your final Spanish income tax return and notifying AEAT of your departure
• Filling National Insurance gaps at GBP 3.50 per week before the April 2026 deadline closes
• Structuring your estate before the inheritance tax residence clock starts counting

Most British expats in Spain only realise what they should have planned after their first UK Self Assessment and their first National Insurance statement. Those who build the plan whilst still in Spain rarely regret it.