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UK Expat Tax
What to Get Right Before and After You Move
The tax consequences of moving abroad are largely set by decisions made around the move itself — not afterward.
Whether you’re planning a move abroad or have already relocated, your UK tax position changes in ways that catch many expats out — particularly around the year of departure, ongoing UK income, and what happens if you return.
Common Cross-Border Situations
Key Considerations for UK Expats
- Split-year treatment – the tax year you leave is often split into a UK part and an overseas part, rather than treating the whole year as one residence status.
- Ongoing UK income – property, pensions, and investments often remain UK-taxable even after you’ve left (see Non-Resident Tax).
- National Insurance – your contribution record and entitlements can be affected, depending on your income.
- Inheritance Tax – UK domicile can persist for IHT purposes even after years of non-residence.
- Future return to the UK – see Returning to UK for the tax consequences of coming back.
How We Help
- We plan the tax position of your departure year before you leave, where this is still possible to influence.
- We manage your ongoing UK filing obligations while you’re abroad.
- We coordinate UK and overseas tax positions to avoid double taxation and missed reliefs.
- We advise on domicile and Inheritance Tax exposure, which often persists longer than people expect.
- We plan ahead for an eventual return to the UK, where the timing of decisions matters.
Already living abroad and unsure if your UK filing is up to date? Speak to an Expert for a quick review.
Get clarity on your UK expat tax position.
Book an appointment with our specialists today.
FAQs
1. Do I need to tell HMRC I'm leaving the UK?
Yes, generally via your Self-Assessment return or a specific form, depending on your circumstances.
2. Does becoming non-resident mean I stop paying UK tax altogether?
No — it changes what’s taxable, but UK-source income generally remains taxable regardless of residence.
3. How long do I need to stay non-resident for moving abroad to "stick" for tax purposes?
There’s no single fixed period — this depends on the Statutory Residence Test rules and, for some purposes, anti-avoidance rules covering temporary non-residence.
