After years in Dubai or Spain, coming back to the UK can feel like slipping on an old pair of shoes. HMRC, sadly, doesn't see it quite so sentimentally. The way you time your return can make a big difference to your tax bill, and most of the useful planning has to happen before you get on the plane.
You may be resident sooner than you think
UK tax residence is judged over the whole tax year, which runs from 6 April to 5 April, using the Statutory Residence Test. That means you can become UK resident for a year before the date you actually land, depending on your days in the UK, your work and your ties here.
Split-year treatment can limit UK tax to the part of the year after you arrive, but it isn't automatic and it only applies in specific situations. If it doesn't apply to you, income and gains from earlier in the year could be taxed in the UK.
The five-year rule
If you have been non-resident for five tax years or less, the temporary non-residence rules can reach back and tax certain gains and income you made while you were away. A common example is selling shares or a property abroad a year before coming home and assuming it's tax-free in the UK. If you return within five years, HMRC may disagree.
Big dividends from a company you control can be caught in the same way. If you are thinking about selling something significant, speak to an adviser about the timing first.
The four-year bonus for long-term expats
If you have been non-resident for at least ten consecutive tax years, you may qualify for the foreign income and gains regime, which started in April 2025. It can exempt foreign income and gains from UK tax for your first four years back, but you have to claim it and still report what you earn. It's a genuine perk for long-term expats, but it is easy to lose by becoming resident a year too early.
Tidy up before you leave
A few things are much easier to sort while you are still abroad:
- Sell or restructure investments that are tax-efficient where you live but inefficient in the UK, such as some offshore funds.
- Review offshore bonds and savings plans, which can be taxed differently once you're back.
- Time bonuses and share options, so you know which country will tax them.
- Check your pensions, including any overseas schemes, before you start drawing from them.
Admin when you land
- Tell HMRC you are back, and register for Self Assessment if you have foreign income, gains or rental income.
- Check your National Insurance record. Gaps from your time abroad may be worth filling with voluntary contributions to protect your State Pension.
- You can start paying into ISAs again once you are UK resident.
- Update your banks and investment platforms with your new tax residence.
Don't forget inheritance tax
Coming back also restarts the inheritance tax clock. Under rules introduced in April 2025, people who have been UK resident for 10 of the previous 20 tax years are exposed to UK inheritance tax on their worldwide assets. It is not urgent on day one, but it is worth building into your long-term plans.
Next steps
The best time to take advice is six to twelve months before you move, while you still have options. Expat Confidant can introduce you to a vetted cross-border tax adviser who works with people returning from Dubai and Spain.
This guide is general information, not tax advice. The rules are complex and change regularly, so speak to a qualified adviser about your own circumstances.