Moving Back to the UK? Here’s What the New Tax Rules Mean for You
TL;DR
The new UK tax rules for people moving back from overseas change how your foreign income, pensions, and tax residency are treated. These rules affect when and how you pay tax on overseas earnings, whether you qualify for UK personal allowances, and how your global income is reported. Understanding the timing of your return and residency status is crucial to avoid unexpected UK tax bills.Returning to the UK?
Moving back to Britain can create significant tax, pension and investment planning challenges. Understanding the new rules before you return could help you avoid costly mistakes and make more informed financial decisions.
The decisions you make before becoming UK resident again can have a lasting impact on your tax position, retirement planning and long-term financial security. In many cases, opportunities that are available before your return may no longer be available once you are back in the UK.
Areas such as the new Foreign Income and Gains (FIG) regime, offshore investments, pension planning, tax residency and the timing of financial transactions can all play an important role in shaping your future financial outcomes.
Every return is different. Whether you are returning from Europe, the Middle East, Asia or elsewhere, taking advice before you move can help you understand your options and prepare with confidence.
Book a discovery call with Ross to discuss your personal circumstances and explore the financial considerations that may affect your return to the UK.
Moving back to the UK Tax Rules
That means your tax status will depend entirely on whether you’re considered a UK resident, not where your parents are from or where your wealth is held.
If you’re a former expat returning to live in the UK, whether for family, work, or retirement, this change could significantly impact how your income, investments, and estate are taxed.
Let’s break it down.
Why Is the Tax System Changing?
Out with the old: Domicile-based taxation
Under the current system, if you’re a “non-dom” (non-domiciled individual), you can choose the remittance basis—
meaning you only pay UK tax on foreign income and gains if you bring them into the UK.
In with the new: Residence-based taxation
From April 2025, it’s all about where you live.
If you’re UK resident, you’ll be taxed on your worldwide income and gains, regardless of where your assets are
or how long you’ve lived overseas.
This brings the UK in line with many other countries (and removes the long-standing perks for internationally mobile individuals).
Why Planning Before Returning to the UK Matters
Returning to the UK after living overseas can be one of the most significant financial transitions an expat will experience. While many people focus on the practical aspects of moving home, the financial decisions made before returning can have a lasting impact on tax efficiency, retirement planning and long-term wealth preservation.
One of the biggest recent developments is the introduction of the Foreign Income and Gains (FIG) regime, which has fundamentally changed how certain returning expats may be taxed. Understanding how these new rules apply to your circumstances before you become UK resident again can help you identify planning opportunities and avoid unintended tax consequences.
Changes to your tax residency status can also affect how your income, investments and assets are taxed. The point at which you become UK tax resident again may have implications for investment gains, overseas income and future tax liabilities. Careful planning around residency dates can sometimes make a significant difference.
If you hold offshore investments, international savings accounts or overseas investment structures, these should be reviewed before your return. Some arrangements that may have worked well while you were living abroad could be treated very differently once you are back within the UK tax system.
Your pension arrangements should also be considered as part of the planning process. Whether you have UK pensions, overseas pensions, SIPPs or other retirement assets, returning to the UK may create both opportunities and challenges that should be understood before any major decisions are made.
For those who own property, either in the UK or overseas, there may be tax and ownership considerations that deserve careful attention. Rental income, future disposals and ongoing ownership structures can all be affected by your return to UK tax residency.
Perhaps most importantly, timing matters. Certain actions may be easier, more tax-efficient or only available while you are still non-UK resident. Once you have returned and become UK resident again, some planning opportunities may no longer be available.
Many of the most important financial decisions should be made before you return to the UK, not afterwards.
Taking advice before your return can help you understand the options available, avoid unnecessary tax complications and ensure your pensions, investments and wider financial plans are structured appropriately for the next stage of your life.
Who Will This Affect?
This change will impact:
- Brits returning to the UK after years abroad
- Long-term non-doms living in the UK
- Non-residents with UK property or business interests
- Anyone with offshore income, trusts, or foreign investments
If you’re coming back to the UK, especially after many years away, you need to understand how residency is defined
and how your global wealth will be taxed.
How Does HMRC Decide If You’re a UK Tax Resident?
HMRC uses the Statutory Residence Test (SRT).
Here’s the simplified version:
1. How many days are you in the UK?
- 183 days or more in a tax year → You’re automatically UK resident.
- Fewer than 183 days? → You’ll be assessed based on your UK “ties”.
2. What counts as a UK tie?
✔️ Family tie – A spouse/partner or minor children live in the UK
✔️ Accommodation tie – You have a UK home that you use
✔️ Work tie – You work in the UK for 40+ days in the tax year
✔️ 90-day tie – You’ve spent 90+ days in the UK in either of the last two tax years
✔️ Country tie – The UK is where you spend the most time that year
The more ties you have, the easier it is to be classed as UK resident — even if you’re under 183 days.
Returning to the UK Is More Than a Tax Decision
While tax is often one of the first things people think about when moving back to Britain, returning to the UK is rarely just a tax decision. It is a major financial transition that can affect your pensions, investments, property ownership, retirement plans and long-term financial security.
Every return is different. Some expats return after a few years overseas, while others may have spent decades building their lives abroad. Personal circumstances, family situations, sources of income and future plans can all influence the decisions that need to be made before becoming UK resident again.
Financial arrangements also vary considerably. You may have offshore investments, international pensions, overseas property, foreign income sources or assets spread across multiple countries. Understanding how these fit into the UK’s evolving tax framework is an important part of preparing for your return.
The tax consequences can be substantial. Decisions involving investments, pension withdrawals, property sales and income arrangements may have very different outcomes depending on when they are made and whether they occur before or after your return to the UK.
Early planning often creates more options. Taking advice before you become UK resident again can help you understand potential opportunities, avoid unnecessary tax complications and ensure your financial affairs are structured appropriately for the next stage of your life.
The earlier you begin planning, the greater your ability to make informed decisions with confidence rather than reacting to issues after they arise.
What Happens Once You Become UK Resident Again?
If you’re UK resident from April 2025 onward, here’s what changes:
🔹 You’ll be taxed on your worldwide income and gains
Offshore income, dividends, interest, rental income, business profits – these will all be taxable in the UK.
🔹 The remittance basis is abolished
You can’t keep offshore income tax-free anymore – even if you don’t bring it to the UK.
🔹 Offshore trusts lose their protection
Offshore trusts used to be a popular tool to shield assets. From April 2025, if you’re UK resident, income and gains inside offshore trusts will be taxable.
Special Rules for Returning Expats
If you’ve been a non-resident for at least 10 years, you may qualify for transitional relief.
You get:
- Four years of tax relief on qualifying foreign income and gains
- The ability to rebase certain assets to their April 2019 value, reducing future capital gains tax
- The option in some cases to only pay tax on 50% of foreign income during the transition
This creates a valuable window to restructure your finances before full UK taxation kicks in.
Case Study: A Retired Expat Returning to the UK
Meet Sarah
Sarah is a 62-year-old British citizen who has lived and worked in Saudi Arabia since 2015.
She’s enjoyed a high tax-free salary and has built up significant offshore savings and investments, including an offshore investment bond and a rental property portfolio held outside the UK.
Now, she’s planning to return to the UK in early 2026 to retire and be closer to her children and grandchildren.
What Happens When She Returns?
Because she will spend more than 183 days in the UK in the 2025/26 tax year, Sarah will be automatically classed as UK tax resident under the Statutory Residence Test.
But here’s where it gets interesting:
- Sarah has been non-UK resident for more than 10 consecutive years.
- That makes her eligible for the four-year “FIG” (Foreign Income and Gains) relief starting in the year of her return.
How FIG Relief Works for Sarah
From 2025/26 to 2028/29, Sarah will not be taxed on her qualifying foreign income or gains.
This creates a valuable window for tax-efficient planning and restructuring.
But from 2029/30 onward, she’ll be taxed on all worldwide income and gains, just like any other UK resident.
Sarah’s To-Do List Before Returning
✔️ Review her offshore investment bond – Offshore bonds can be a useful tool in retirement as gains can be deferred and withdrawals structured to be tax-efficient.
✔️ Rebase or dispose of foreign assets – Sarah owns shares purchased before April 2019. By taking advantage of rebasing relief, she can reset the acquisition value of those shares to their April 2019 market value, potentially reducing future UK capital gains tax.
✔️ Consider whether to sell foreign property now or later – If she’s thinking about selling her overseas rental property, doing so before she becomes UK resident could save thousands in capital gains tax.
✔️ Update her estate plan – Returning to the UK for retirement could expose her entire estate to UK inheritance tax from 2029/30.
✔️ Track her UK days and ties – If she delays her return, she must avoid triggering UK tax residency prematurely, especially in the 2024/25 tax year, which is the last year under the old regime.
✔️ Get advice on pension access – Sarah has a SIPP and an old defined benefit scheme. Drawing pension income in a way that aligns with her tax residency and income needs will be crucial.
💡 Key Insight
For someone like Sarah, returning to the UK for retirement brings emotional rewards but also potential tax traps.
With careful planning, she can use the four-year relief window to clean up, simplify, and optimise her finances, ensuring a smoother transition into retirement and long-term UK tax residency.
Inheritance Tax (IHT) — Another Big Change
Historically, UK IHT has been based on domicile.
But under the new rules, IHT has also shifted to a residency-based model, meaning:
- If you’ve been UK resident for 10 of the last 20 years, your entire estate (including overseas assets) could be subject to IHT.
- Expats returning to the UK for retirement or family reasons could be caught out if they stay too long.
Still abroad? You’ll continue to face UK IHT only on UK assets like property or pensions (from April 2027).
What About Non-Residents?
If you’re not UK resident, the rules haven’t changed much:
- You’ll still be taxed on UK-sourced income (like rent or pensions).
- You won’t be taxed on foreign income or gains unless you return to the UK.
- You’ll still be subject to UK IHT on UK property and pensions (from April 2027).
Common Financial Mistakes Expats Make When Returning to the UK
Returning to the UK after living overseas often feels familiar because it is, in many ways, a return home. However, many expats underestimate how much their financial position may have changed while living abroad and how different the tax and planning landscape can be when they become UK resident again.
Waiting until after returning to seek advice
One of the most common mistakes is delaying financial planning until after arriving back in the UK. By that stage, certain opportunities may already have been lost. Decisions relating to investments, pensions and tax planning are often easier and potentially more effective when made before your return date.
Not reviewing offshore investments
Many expats accumulate offshore investment accounts, offshore bonds or international portfolios while living abroad. These arrangements may continue to serve a purpose after returning to the UK, but their tax treatment could change significantly once UK residency is re-established. Reviewing these investments before returning can help avoid unexpected tax consequences.
Ignoring the timing of asset disposals
The timing of selling investments, businesses, property or other assets can have a major impact on the tax you ultimately pay. Transactions completed while non-UK resident may be treated very differently from those carried out after becoming UK resident again. Understanding the timing implications before taking action can be extremely valuable.
Failing to understand the Foreign Income and Gains (FIG) regime
The introduction of the new FIG regime has changed the tax landscape for many returning expats. Understanding how foreign income, overseas investments and gains may be treated under the new rules is essential when developing a return-to-the-UK strategy.
Overlooking pension planning opportunities
Pensions are often one of the largest assets returning expats hold, yet they are frequently overlooked during the relocation process. Reviewing pension arrangements before returning can help identify opportunities around tax efficiency, retirement income planning and long-term financial security.
Many returning expats assume they can address these issues once they are back in the UK. Unfortunately, some decisions become more difficult, less flexible or more expensive after UK residency resumes.
Many of these mistakes are avoidable if planning begins before your return date.
Taking advice early can help you understand your options, avoid unnecessary tax complications and ensure your pensions, investments and wider financial affairs are structured appropriately before the next chapter of your life begins.
Returning to the UK? What Should You Do Right Now?
- Track your UK days – Keep a precise record of time spent in the UK to avoid accidentally triggering tax residency before you’re ready.
- Organise proof of residency or non-residency – HMRC may request evidence to support your claim of tax status, especially in cross-border years.
- Review non-UK investments and trusts – What works offshore may not be efficient (or compliant) once you’re back under UK tax rules.
- Plan your return strategically – Align your move with the UK tax year and residence rules to benefit from reliefs and avoid unnecessary exposure.
- Get advice on estate planning – The switch to a residence-based IHT regime could dramatically change how your estate is taxed—review wills, trusts, and structures now.
Real People, Real Results
“I connected with Ross via LinkedIn earlier this year, before my repatriation from Asia to the UK. He has an excellent understanding of financial planning for repatriation and retirement and has provided invaluable professional advice regarding offshore investments, pensions, taxation and inheritance.
He is very easy to talk to, not pushy at all, provides solid advice, and proposes tailored products only after fully understanding short and long-term plans and investment needs. I have no hesitation recommending him to anyone looking for a sound Financial Advisor.”
— Chris Barnard
I’m Moving Back to the UK, How Does the UK’s Move to a Residence-Based Tax System Affect Me?
FAQs
Not quite — but it’s changing.
From April 2025, if you’re classed as UK resident, you’ll be taxed on your worldwide income and gains going forward.
However, if you’ve been away for 10+ years, you could get 4 years of tax relief on foreign income and gains, as long as you don’t bring them into the UK.
If you’ve been abroad for over a decade, you’ll likely qualify for the four-year FIG relief, which gives you time to get your offshore finances in order before the UK taxman starts knocking.
If you’ve been abroad for less than 5 years, you’ll want to make sure you don’t fall foul of the Temporary Non-Residence rules.
Yes, and it can actually be a smart move.
Offshore bonds offer tax deferral, meaning you can control when and how much income you draw.
During your relief period, you might even be able to withdraw without triggering UK tax, but timing is everything, so get professional advice.
Possibly! Once you’re UK resident, any gains on selling foreign property are potentially taxable.
If that property has gone up in value while you were abroad, selling before returning could save a lot in capital gains tax.
Timing here is crucial.
Not anymore.
From 6th April 2025, UK residents will be taxed on any income or gains arising within offshore trusts.
They’ll no longer be a shelter from UK tax, so if you’re relying on one, it’s time for a rethink.
Yes.
You might still be classed as UK tax resident if you spend enough days here or have strong UK ties (like a home or close family).
The Statutory Residence Test can sneak up on you, so it’s worth keeping an eye on it.
Almost certainly.
Once you’ve been UK resident for 10 of the last 20 years, your entire estate, even overseas assets, could be caught by UK inheritance tax.
For returning retirees, this is one of the biggest long-term planning concerns.
Track your days, review your financial structure, and speak to a qualified cross-border financial adviser well before your return.
Not really.
Non-residents will still be taxed only on UK income, not foreign income.
That’s a big red flag.
If you remit foreign income to the UK during the four-year FIG relief window, it becomes taxable, even if it was meant to stay offshore.
To avoid this, make sure your offshore income and capital are held in separate, clearly labelled accounts, and get help setting this up properly.
Further Reading
🔗 Coming Home: 10 Financial Steps for Expats Returning to the UK
🔗 What should I do with my offshore investments when returning to the UK?
🔗 What is an Offshore Bond? An Expat Guide
🔗 Why Expats Return to the UK (And the Costly Tax Mistakes They Need to Avoid)
🔗 Planning to Return to the UK? How the 2025 IHT Changes Could Affect Your Estate
🔗 Navigating the UK Temporary Non-Residence Rules: A Guide for Expats
Final Thoughts
The UK’s switch to a residence-based tax system is a big deal, especially if you’ve been living abroad and are thinking about returning.
It’s not just about income tax.
It affects your estate, your trusts, your investments, and even how long you can spend in the UK without triggering unexpected tax bills.
The sooner you start planning, the more options you’ll have.
Next Step
💡 Check out the Return Ready Roadmap™. It’s my dedicated service for expats returning to the UK.
Talk to an Expert
Returning to the UK is one of the most important financial transitions many expats will ever make. The decisions you take before returning can have a lasting impact on your tax position, pensions, investments and long-term financial security.
I’m Ross Naylor, a UK-qualified Chartered Financial Planner and Pension Transfer Specialist with nearly 30 years' experience helping British expats navigate complex cross-border financial decisions before and after returning to the UK.
Recent changes to the UK's tax system, including the introduction of the Foreign Income and Gains (FIG) regime, mean that planning opportunities and potential pitfalls can arise well before you step back onto British soil. Understanding how these changes affect your personal circumstances is often crucial to making informed decisions.
I firmly believe your location in the world should never be a barrier to expert, impartial and transparent financial advice you can trust.
Whether you're trying to understand how the FIG regime affects your foreign income and gains, what to do with offshore investments, how your pensions should be structured before returning, or how residency changes could affect future tax and inheritance planning, I can help you build a strategy that prepares you for a successful return.
Every return is different. My role is to help you understand the options available, avoid costly mistakes and make confident decisions before opportunities disappear.
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