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International Tax

Leaving the UK: tax advice on residence, split year and temporary non-residence

Leave the UK cleanly. We cover the Statutory Residence Test, split year treatment, temporary non-residence and the inheritance tax tail that follows you abroad.

Led by
Omar Aswat CTA
Last reviewed
9 October 2026
Reading time
5 min
International Tax
2 of 6
On this page13 sections
  1. Who this is for
  2. How non-residence works
  3. Split year treatment
  4. Temporary non-residence
  5. The inheritance tax tail
  6. Other UK taxes that still apply
  7. What to do before you go
  8. Common mistakes
  9. How we help
  10. Why ASWATAX
  11. Talk to us
  12. UK Residency Checker
  13. Questions answered

Key points

  1. 1Leaving is a tax-year test, not a flight date
  2. 2Split year treatment can protect the part of the year after you go
  3. 3Return within five years and some gains and income can be taxed on your return
  4. 4Inheritance tax can follow worldwide assets for three to ten years after you leave
  5. 5Plan disposals, dividends and structures before you go

Leaving the UK can reduce your UK tax, but only if you do it properly. Tax residence is judged by the tax year, not by when you board a plane, and several rules can follow you abroad: the temporary non-residence rules, UK property taxes and, for long-term residents, inheritance tax for up to ten years.

At ASWATAX, Omar Aswat, a Chartered Tax Adviser, leads your plan personally. We help you decide when to go, what to do before you leave and how to evidence your new status.

Who this is for

  • Individuals relocating abroad for work, retirement or lifestyle, including to the Gulf.
  • Business owners planning a sale and considering whether to leave first.
  • Families with UK property, companies or trusts and a move overseas.
  • Expatriates unsure whether they have actually become non-resident.

How non-residence works

You are UK resident or not for each tax year (6 April to 5 April) under the Statutory Residence Test (SRT). If you were resident in any of the previous three tax years:

  • you are automatically non-resident if you spend fewer than 16 days in the UK, or you work full-time overseas and meet the conditions of that test; and
  • otherwise the sufficient ties test applies, balancing the days you spend here against your family, accommodation, work, 90-day and country ties. With 16 to 45 days you can have no more than three ties; the allowed number falls as days increase.

But you can fail the automatic overseas tests and still be resident under an automatic UK test, for example because you have a UK home and spend time in it. Our free UK Residency Checker and our Residency page give the fuller picture.

Split year treatment

When you leave part-way through a tax year, split year treatment can make the period after you go non-resident. It applies in specific cases, such as starting full-time work abroad or ceasing to have a home in the UK. If it does not apply, you are UK resident for the whole of the year of departure, and your first full non-resident year starts the following 6 April. Planning the date of departure, not just the year, can make a real difference to gains and income in that year.

Temporary non-residence

If you were UK resident for at least four of the seven tax years before leaving, and you return to UK residence within five years, the temporary non-residence rules can apply. They can bring into charge, in the year of your return:

  • gains on assets you owned before leaving and disposed of while abroad;
  • some income, including certain pension withdrawals, lump sums and distributions from close companies.

Close company distributions have been a particular focus of recent change. Our article on temporary non-residence and post-departure profits explains this in more detail.

The inheritance tax tail

Inheritance tax is the part many leavers overlook. If you have been UK resident for 10 of the previous 20 tax years, you are a long-term UK resident, and your worldwide assets stay within UK inheritance tax for a tail of three to ten years after you leave. The tail grows by one year for each extra year of residence beyond 13, up to ten. See International Inheritance Tax for the full table and the planning points.

Other UK taxes that still apply

  • UK rental income and gains on UK property remain taxable. See Non-UK Resident Landlords.
  • UK-source income, such as UK dividends and trading profits, remains taxable.
  • A UK pension keeps its UK tax rules.
  • Your new country may also tax you, and the double tax treaty will decide the allocation. We cover the UAE and Saudi Arabia specifically.

What to do before you go

A short checklist helps. Before you leave, we typically look at:

  • a day-count forecast for the year of departure and the following years;
  • gains that could be realised in the UK before departure, at known rates, rather than risked later;
  • the dividend position of any company you own;
  • the future of your UK home, whether to sell, let or keep it;
  • pensions, ISAs and other UK accounts, which may have different rules for non-residents;
  • your will, your trusts and your inheritance tax exposure during the tail; and
  • your self assessment filings, including the departure year return.

Each item is simple on its own. The risk is in the timing and in how the pieces interact.

Common mistakes

  • Assuming a fixed number of days abroad makes you non-resident.
  • Selling a business or paying dividends at the wrong time relative to departure.
  • Keeping a UK home and not considering the accommodation tie.
  • Ignoring the five-year return risk when plans change.
  • Forgetting that inheritance tax can follow worldwide assets.
  • Failing to keep records of days, work and travel.

How we help

  1. Pre-departure review. We map your history, assets, income and ties.
  2. Date and structure. We choose the departure date and review companies, trusts and property.
  3. Disposals and distributions. We time sales, dividends and pension decisions.
  4. Evidence file. We help you build a record that stands up to an HMRC enquiry.
  5. Reporting. We handle the departure-year return and later UK filings.

Business owners should also read Exit Planning, because the timing of a sale and a move are best planned together.

Why ASWATAX

You work directly with a Chartered Tax Adviser and advice is built around your goals. We have advised 300+ clients across 15+ years, we are rated 5.0 on Google, and we reply the same working day.

Talk to us

If you are thinking of leaving the UK, speak to us before you go. The first call is free. Book a call or contact us. You can also return to the international tax overview.

01Free tool

Start with your numbers.

Work through the Statutory Residence Test in a few minutes. See a first result now, then open the full calculator for the step-by-step breakdown. Open the full UK Residency Checker.

UK Residency Checker

Are you UK resident this tax year?

100 days
UK resident in any of the last three tax years?
Your UK ties

First view

Likely UK resident

Sufficient ties test: with 100 days you would need 2 ties; you have 2. A simplified first view of the Statutory Residence Test.

Want the full picture? The full UK Residency Checker asks a few more questions and shows the step-by-step working, the assumptions and where planning could help.

Open the full calculator

Simplified: it leaves out the work-based and only-home tests and split years. Your result may differ. Not advice.

02 · Guide in progress

The Leaving the UK Tax Guide

A practical checklist to leave the UK tax-efficiently and keep the evidence.

Talk it through instead

Our The Leaving the UK Tax Guide is being written. In the meantime, a 20-minute call with a Chartered Tax Adviser is free.

Book a free call

We reply the same working day.

0515 questions

Questions, answered.

Straight answers to what clients ask us most. Your own situation may differ, so treat them as a starting point.

Q1What do I need to do to stop being UK tax resident?

You need to meet one of the automatic overseas tests, or pass the sufficient ties test with few enough UK ties for your day count. If you were UK resident in any of the previous three years, the automatic overseas test is fewer than 16 UK days, or a full-time work abroad test. Residence is judged for the whole tax year, so the rest of your pattern matters too.

Q2Is there a split year when I leave the UK?

Possibly. If you leave part-way through a tax year, split year treatment can treat the period after you go as non-UK resident, so overseas income and gains after departure fall outside UK tax. It only applies if you meet a specific case, such as starting full-time work abroad or ceasing to have a UK home and spending limited time here. It is not automatic, so evidence matters.

Q3What are the temporary non-residence rules?

They are anti-avoidance rules. If you were UK resident for at least four of the seven tax years before leaving, and return to UK residence within five years, certain gains and income received while abroad can be taxed in the year you return. The aim is to stop people leaving briefly to realise a gain or extract profits tax-free.

Q4Can I sell my shares or business after leaving the UK and pay no UK tax?

Only if you stay non-resident for long enough. Non-residents are generally outside UK capital gains tax on shares, but if you return within five years the temporary non-residence rules can tax the gain in your year of return. Gains on UK land and certain property-rich companies are also still taxable. The timing of a sale needs planning before you leave.

Q5Can I take dividends from my UK company after I move abroad?

It is possible, but restricted. Distributions from a close company paid during a period of temporary non-residence can be taxed in the UK on your return if you come back within five years, and recent legislation has changed how these rules work. The treaty with your new country matters too. We review the company's reserves and the five-year picture before any dividend plan.

Q6Will I still pay UK inheritance tax after I leave?

Yes, for a time. Under the residence-based rules, if you were UK resident for at least 10 of the previous 20 tax years, your worldwide assets stay in scope for between three and ten tax years after you leave, depending on how long you lived here. UK property always remains in scope. The tail is long for long-term residents, so estate planning should start early.

Q7How do I estimate my own inheritance tax tail before deciding to go?

It depends on how many of the last 20 tax years you were UK resident when you leave. With 10 to 13 years of residence the tail is three years, 14 years gives four, then each extra year adds one, up to ten years if you were resident in all 20. After 10 consecutive years of non-residence, the test resets, even if you later return.

Q8Do I still pay UK tax on UK rental income if I move abroad?

Yes. UK property income remains taxable in the UK for non-residents, usually after allowable expenses, and you must report it on a Self Assessment return. Non-residents also pay capital gains tax on UK property and report disposals to HMRC within 60 days. Your new country may tax the income too, with treaty relief to prevent double taxation. See our Non-UK Resident Landlords page.

Q9What happens to my UK pension if I leave?

UK pension schemes generally keep their rules, and you can usually remain a member. Contributions by a non-UK resident without UK earnings are limited. Lump sums and income paid while you are abroad may be taxed in the UK or your new country depending on the treaty, and flexible drawdown payments can be caught by the temporary non-residence rules. Check before drawing benefits.

Q10Should I sell my UK home before I emigrate?

Not necessarily. Gains on UK residential property are taxable for non-residents and must be reported to HMRC within 60 days of completion. Your main home may qualify for private residence relief for the period you lived in it, but time after you leave is treated differently. Timing, ownership and use all matter, so we model selling before departure against selling afterwards.

Q11Do I need to file a UK tax return in the year I leave?

Usually yes. A departure year often involves a mix of UK income, gains and a claim for split year treatment, and the return is where you declare your residence status. You may also need to report disposals and UK property income in later years. Leaving without filing, or without keeping day-count records, is a common cause of later HMRC questions.

Q12Can HMRC challenge my non-residence?

Yes. HMRC can open an enquiry into your residence, often looking at how many days you spent here, where your family lives, where you work and whether you kept a UK home. Contemporaneous records are the best defence, such as diaries, flight and phone records and contracts. We help you build an evidence file before you leave, so the position is easy to show.

Q13What are the main tax risks of leaving the UK for the Gulf?

The Gulf often has no personal income tax, so UK tax is the main concern: proving non-residence, controlling UK days, handling UK property, and the temporary non-residence rules if you return within five years. Inheritance tax remains a live issue because treaties with Gulf states do not cover it. We work alongside your local advisers to cover the whole picture.

Q14Can I keep a UK home and still be non-resident?

Yes, but it is not simple. A UK home you can use is an accommodation tie, and having a UK home available for a period can also help trigger an automatic UK residence test if you spend enough time in it and have no overseas home. Ties and days must be balanced. Letting the property out or keeping it unavailable can alter the analysis.

Q15When should I start planning before leaving the UK?

Ideally six to twelve months before leaving. That gives time to consider disposals of assets and shares, the timing of dividends, pensions, the IHT tail, trusts, wills and any need to restructure companies. Once you have left, many of the planning options are gone. The first call is free, and we reply the same working day.

06 · Next step

Talk it through with Omar.

The first call is free. You'll speak to a Chartered Tax Adviser, and leave with a clear view of your options.

We reply the same working day.

Chartered Tax Adviser