Returning To The UK With Foreign Gains: The Temporary Non-Residence Catch
Index:
Returning to the UK With Foreign Gains: The Temporary Non-Residence Catch
If you sold assets while living abroad and you are now moving back to the UK, HMRC can still tax those gains. Under Section 10A of the Taxation of Chargeable Gains Act 1992 (TCGA 1992), anyone who was UK resident for at least four of the seven tax ye ars before leaving, and who returns within five years of departure, has their offshore gains taxed in the year they come back, not the year the asset was sold. This is the temporary non-residence rule, and for the 2026/27 tax year it catches far more people than most returning expats expect.
I see this trip people up constantly, usually clients who took specific tax advice on leaving the UK and assumed that advice covered the whole journey. It rarely does. Leaving well and returning well are two different exercises, and the second one is where the real exposure sits.
What the rule actually does
Section 10A does not stop you selling assets while you are non-resident. It does something more specific: it changes the tax year in which a gain is treated as accruing. If you are caught, a gain realised in, say, your second year abroad is deemed to accrue not then, but in the tax year you resume UK residence. You then report and pay tax on it as though the disposal happened on your return.
The rule exists because a UK resident could otherwise leave for a single tax year, sell an asset that had appreciated substantially, pay no UK CGT because they were non-resident at the point of disposal, then come straight back. HMRC's own HS278 helpsheet on temporary non-residents and Capital Gains Tax sets out the mechanics in full, and it is worth reading even if you use an adviser, because the definitions of "sole UK residence" and "residence period" that it relies on are not intuitive.
The two conditions that matter
You are within scope of Section 10A if both of the following are true:
● You had sole UK residence for all or part of at least four of the seven tax years immediately before the year you left, and
● The period during which you did not have sole UK residence is five years or less.
Both tests use the Statutory Residence Test (SRT), and both can behave in ways that surprise people. "Sole UK residence" is not simply "resident in the UK." If you were UK resident under the SRT but also treaty resident in another country for part of that period, HMRC does not count that as sole UK residence, and your last period of sole UK residence can end earlier than you think. This matters because it can push someone who believed they left cleanly in one tax year into having actually left in the previous one, which changes the whole five-year clock.
The five-year window itself is measured in residence periods, not simple calendar years, and split year treatment complicates it further. Under the SRT, a tax year in which you leave or arrive partway through can be divided into a UK part and an overseas part, and only the overseas part counts toward your period of non-residence for these purposes. Full detail on split year treatment sits in HMRC's RDR3 guidance note on the Statutory Residence Test, and it repays careful reading before you fix a departure or return date in your mind.
UK Temporary Non-Residence Tax Catch Explainer
This interactive dashboard helps returning British expats understand whether their offshore gains and income will be caught by HMRC’s temporary non-residence rules upon moving back to the UK. Simply input your departure and intended return dates, alongside your previous residency history, to instantly check if you fall within the strict five-year scope of Section 10A. You can also explore the visual charts to see how different types of income are affected and understand how your remaining basic rate band splits your Capital Gains Tax between the 18% and 24% rates. Use this tool to carefully model your timeline before finalising your travel plans, ensuring you avoid unexpected tax bills on assets sold whilst living abroad.
A worked example
Take someone who sold an offshore share portfolio for a substantial gain. They left the UK on 1 August 2022, qualified for split year treatment that year, and had been UK resident throughout the previous seven tax years. They sold the shares in November 2024, while non-resident, and moved back to the UK on 15 September 2026, again with split year treatment applying to the year of return.
Their last period of sole UK residence ran up to 31 July 2022. Their period of non-sole UK residence runs from 1 August 2022 to 14 September 2026, which is just over four years, well inside the five-year limit. They were UK resident for at least four of the seven years before 2022/23. Both conditions are met. The gain made in November 2024, which they may reasonably have assumed was clean of UK CGT because they were genuinely non-resident and paying tax on the disposal in their country of residence at the time, becomes chargeable in 2026/27, the year of return, at 2026/27 rates.
For 2026/27, gains above the £3,000 annual exempt amount are taxed at 18% where they fall within the remaining basic rate band, and at 24% above it, applying equally to shares and other assets since the rates were aligned from 30 October 2024. There is no separate lower rate for shares any more. If the client's return-year income already uses up their basic rate band, as is common for someone re-entering UK employment at a reasonable salary, the whole gain is likely to fall at 24%.
What is excluded, and where people get it wrong
Not every gain made while abroad is dragged back. Section 10AA carves out gains and losses on assets that were both acquired and disposed of during the period of non-residence, provided there is a genuine change of intention rather than a step designed to sidestep Section 10A. Assets you already owned before you left do not benefit from this carve-out even if you disposed of them abroad; the exclusion is for assets bought and sold entirely within the non-resident window.
The mistake I see most often is a client who assumes that because they paid tax on a gain in their country of residence at the time, HMRC has no further claim. That is not how Section 10A works. The treaty position on temporary non-residence gains is specifically disregarded by these rules in the year of return, though relief for foreign tax actually paid is generally available under the standard double taxation relief provisions or the relevant treaty, so the practical exposure is usually the difference between the two countries' rates rather than the full UK charge again from scratch. Getting that credit claimed correctly, with the right evidence of foreign tax paid, is a separate piece of work from simply reporting the gain, and it is easy to under-claim if the paperwork from the disposal is not kept.
The second common error is timing the return date around a fixed idea of "I left for five years, so I'm safe." The five-year period is measured precisely, by residence period, not by rounding to the nearest tax year, and an early return by even a few weeks can bring the whole clock back into scope. If a return date is flexible and a large disposal sits inside the non-resident window, it is worth modelling the residence period boundary properly before booking flights, not after.
Income, not just gains: the parts of this rule people forget
Section 10A is the capital gains version of a wider anti-avoidance framework, and the income tax equivalents catch categories that surprise people who have only thought about their share portfolio or a foreign property sale. On your return, certain types of income received during the non-resident period are also treated as arising in the year you come back. The main categories are:
● Dividends and other distributions from close companies you materially participate in, including UK companies and companies that would be close if they were UK resident
● Loans to participators of close companies that were written off or released while you were non-resident
● Certain lump sum withdrawals from registered pension schemes or relevant non-UK pension schemes, including flexible drawdown payments
● Chargeable event gains on life insurance, life annuity, and capital redemption policies, though these do get some relief by time apportionment for the non-resident period
● Relevant foreign income that was taxed on the remittance basis before 6 April 2025 and is remitted to the UK during the temporary non-residence period
There is a genuinely important change here for 2026/27 that most generic guidance has not caught up with. Until now, a dividend paid by a close company you controlled could escape the income tax clawback to the extent it was paid out of "post departure trade profits", meaning profits the company earned after you left. That carve-out has been removed. Under a measure confirmed at Budget 2025, and taking effect for individuals returning to the UK on or after 6 April 2026, all distributions from a close company received during a period of temporary non-residence are chargeable on return, regardless of when the underlying profits were earned.
UK Temporary Non-Residence Tax Catch Details
Tax Rule or Feature | Key Condition / Trigger | Hidden Information / Catch Explained |
Temporary Non-Residence (TNR) 5-Year Threshold | Sole UK residence in at least 4 of the 7 tax years prior to departure, returning to the UK within 5 years or less 1-11. | To escape the TNR clawback net, non-residence must strictly exceed 5 full years (minimum 5 years and 1 day) 11, 12. The window is measured in complete UK tax years under the Statutory Residence Test, not simple calendar years or physical days 4, 10, 13. Returning even a single day early, or leaving/returning mid-year without split-year treatment, causes all non-resident gains and income to be taxed in the year of return 6, 10, 11, 13. |
Capital Gains Tax (CGT) on Assets Held Prior to Departure | Disposing of assets while temporarily non-resident that were owned prior to leaving the UK 2, 4, 6, 8, 14, 15. | Gains are not tax-free; they are deferred and condensed into a single tax year upon return, potentially pushing the taxpayer into higher tax brackets 5, 6, 16. Paying foreign tax abroad does not eliminate UK liability—Double Tax Agreements (DTAs) only offer credits capped at the UK CGT amount, and zero-tax jurisdictions (e.g., UAE) offer no relief 4, 10, 17, 18. Double tax treaty overrides ensure the UK retains full taxing rights upon return 18. |
New Assets Exemption & Connection Anti-Avoidance | Acquiring and disposing of new assets entirely within the period of non-residence 8, 15, 16, 19. | While newly acquired assets are generally exempt 15, 16, 19, they become fully taxable upon return if connected to prior UK residence (e.g., acquired via no-gain/no-loss spousal transfers, roll-over relief, or deferred gains from pre-departure assets) 5, 6, 8, 14, 16, 20, 21. |
Close Company Distributions & Abolition of Exemption | Receiving dividends or distributions from controlled close companies (or foreign equivalents) while temporarily non-resident 10, 12, 14, 16, 19, 22. | For individuals returning on or after 6 April 2026, the post-departure trade profits exemption is abolished 10, 12, 19, 23, 24. All distributions drawn while abroad—even if funded entirely by profits earned after leaving the UK—are fully taxed as income upon return 6, 10, 12, 13, 19, 23, 24. Anti-avoidance rules also catch indirect payments through offshore entities 22, 25. |
If you run your own company and have been drawing dividends while living abroad with a plan to return in 2026/27 or later, this closes a route that used to soften the charge, and it applies to anyone returning from 6 April 2026 onward even if the dividend itself was paid before that date. Relief is still available for foreign tax suffered on the same distribution, and new provisions were introduced alongside the change specifically to prevent double taxation where the credit rules do not otherwise reach it, but the exemption itself is gone.
How the FIG regime changes, and does not change, the picture
The abolition of the remittance basis from 6 April 2025 and its replacement with the residence-based Foreign Income and Gains (FIG) regime has shifted the wider landscape for anyone with an international profile, and it interacts with temporary non-residence in a way worth being precise about.
If you are a returning UK-domiciled long-term resident who simply left for a period and came back, the FIG regime is largely irrelevant to your Section 10A exposure, because that regime is aimed at qualifying new residents, meaning people who have not been UK tax resident in any of the ten consecutive tax years before their arrival. HMRC's HS266 helpsheet on the FIG regime sets out eligibility in detail. Someone who left the UK for three years and comes back does not meet the ten-year absence test, so they cannot use the FIG regime to shelter the gains that Section 10A drags back into charge, whatever their domicile status.
Domicile itself is no longer relevant to how these gains are taxed at all; residence history is now what matters, and that history is precisely what Section 10A tests.
Where the FIG regime does matter is for a much smaller group: individuals who left the UK for a genuinely long stretch, ten years or more of non-UK residence, and who then return. Because the temporary non-residence rules only bite when the absence is five years or less, and the FIG regime only opens up when the absence is ten years or more, there is a gap between five and ten years where neither the clawback nor the new-arrival relief applies, and gains realised while non-resident in that middle band are simply outside UK CGT altogether on return, subject to the usual split year rules for the year of arrival itself. This is a planning point rather than a trap, but it is one that only makes sense once you have mapped both regimes side by side, which most articles addressing either topic on its own will not do.
The Temporary Non-Residence Catch: Returning to the UK with Foreign Gains
This interactive dashboard explains how HMRC can tax capital gains and certain income you made while living abroad if you return to the UK within five years under the temporary non-residence rules. It covers the two key conditions that bring the rules into play, a clear worked example, the important 2026 changes for close-company dividends, and how the Foreign Income and Gains regime fits in. Simply click through the tabs to explore each section and use the self-check tool at the end for a quick indication of whether your circumstances may be affected. The content is for general guidance only and is not a substitute for personalised tax advice.
The Scottish and Welsh position
Capital Gains Tax is not a devolved tax. The 18% and 24% rates, and the £3,000 annual exempt amount, apply identically whether you are resident in Scotland, Wales, England, or Northern Ireland, and the temporary non-residence rules under TCGA 1992 apply UK-wide with no territorial variation.
The one place Scottish residence genuinely changes the arithmetic is in working out which of the 18% or 24% rate applies to part of a gain. That split depends on how much of the UK-wide basic rate band, £50,270 for 2026/27, remains after your other taxable income, not on Scotland's own income tax bands, which have a lower higher rate threshold of £43,662. A Scottish taxpayer paying the 42% higher rate of Scottish income tax on their salary can still have gains taxed at the 18% CGT rate on the slice that falls within the remaining UK basic rate band, which is a detail worth explaining clearly to a client who assumes their Scottish tax bracket determines their CGT rate directly. Welsh rates of income tax have, since the Senedd set them equal to the rest of England and Wales, made no practical difference to this calculation, but the same underlying principle, that CGT bands are UK-wide, applies equally.
What to actually do before you come back
If you are planning a return to the UK and you have realised, or expect to realise, gains while non-resident, the practical steps are these:
Establish your last period of sole UK residence precisely, not from memory, using the SRT tests and any split year claim from your departure year.
Check whether you were UK resident for at least four of the seven tax years before that departure year began.
Model your likely return date against the five-year boundary before it is fixed, particularly if a large disposal sits inside the non-resident window.
Gather evidence of any foreign tax paid on the gains or income concerned, since this drives the double taxation relief calculation you will need on return.
If you control a close company, review dividend timing against the 6 April 2026 change to the post departure trade profits exemption, because the planning that worked for earlier returners no longer applies.
Where the disposal involves UK property, remember the separate 60-day reporting and payment obligation runs alongside, not instead of, the Section 10A analysis.
None of this is a reason to delay a return that otherwise makes sense for family, work, or personal reasons. It is a reason to get the numbers modelled properly beforehand, because the tax cost of getting the timing wrong is entirely avoidable with a few months' notice, and entirely unavoidable once the return date has passed.
FAQs
I sold shares while non-resident and paid tax on the gain in the country I was living in. Do I really have to pay UK tax again when I return?
Potentially, yes, but usually not the full amount twice over. If you meet the Section 10A conditions, the gain is taxable in your year of return, with the SRT-based treaty override disregarded for this specific purpose. Relief is generally available for the foreign tax already paid, so the real cost is typically the gap between the two countries' effective rates, not a full second charge, provided the relief is claimed correctly with the supporting evidence.
Does it matter whether I left the UK voluntarily or for a work posting?
No. Section 10A does not look at your reason for leaving. It looks purely at your residence history: the four-out-of-seven-years test before departure and the five-year limit on the absence itself.
What if I was non-resident for exactly five years?
Five years or less keeps you within scope. If your period of non-sole UK residence is five years and one day, you fall outside Section 10A, but the boundary is measured precisely by residence period, not by rounding to whole tax years, so do not assume a five-year absence automatically clears you.
Are gains on assets I bought after I left the UK also caught?
Generally no, provided the asset was both acquired and disposed of during your period of non-residence, and the acquisition was not simply a step designed to get around Section 10A. Assets you already held before departure are not covered by this carve-out even if sold abroad.
Does the temporary non-residence rule apply to crypto assets?
Yes. Crypto assets are chargeable assets for CGT purposes in the same way as shares or other investments, and there is no separate exemption for them within Section 10A.
I run my own limited company and have been taking dividends while abroad. What changed for 2026/27?
The exemption for dividends paid out of profits the company earned after you left, known as post departure trade profits, has been removed for anyone returning to the UK on or after 6 April 2026. All qualifying close company distributions received while you were temporarily non-resident are now chargeable on return, regardless of when the underlying profits arose, though relief for foreign tax suffered is still available.
Can I use the new Foreign Income and Gains regime to avoid this charge?
Not if you are simply returning after a shorter absence. The FIG regime is only available to qualifying new residents, meaning individuals who were non-UK resident for at least ten consecutive tax years before arriving. If your absence was five years or less, you are inside the temporary non-residence rules and outside the FIG regime's eligibility criteria at the same time.
Does split year treatment help with any of this?
Split year treatment affects which part of a tax year counts toward your residence period calculations, and it can shift exactly when your period of non-sole UK residence is treated as starting or ending. It does not, on its own, exempt gains from Section 10A once the conditions are met; it changes the dates used to test whether those conditions are met in the first place.
Is the position different if I am Scottish or Welsh rather than English?
The rules and rates are identical UK-wide. The only nuance for Scottish taxpayers is that the split between the 18% and 24% CGT rate uses the UK-wide basic rate band rather than Scotland's own income tax thresholds, so your CGT rate can differ from what your Scottish income tax bracket alone would suggest.
What should I do if I think I am already caught and my return date has passed?
Get the residence period analysis done properly and reported through Self Assessment for the year of return, including any double taxation relief claim. Late or incorrect reporting of these gains attracts the normal penalty and interest regime, and the sooner the position is established, the more options remain for claims such as loss offsets or, where available, the temporary repatriation facility for pre-6 April 2025 amounts.
About the Author
Maz Zaheer, AFA, MAAT, MBA, is the CEO and Chief Accountant of MTA and Total Tax Accountants, two premier UK tax advisory firms. With over 15 years of expertise in UK taxation, Maz provides authoritative guidance to individuals, SMEs, and corporations on complex tax issues. As a Tax Accountant and an accomplished tax writer, he is renowned for breaking down intricate tax concepts into clear, accessible content. His insights equip UK taxpayers with the knowledge and confidence to manage their financial obligations effectively.
Disclaimer:
This article explains the general position for the 2026/27 tax year and is accurate at the date of publication. Tax outcomes depend on individual circumstances, and rules change. It is not advice for your situation. For guidance on your own position, speak to a qualified accountant or tax adviser. My Tax Accountant accepts no liability for action taken solely on the basis of this article.
