Tax Planning for Expats Returning to the UK

For many internationally mobile individuals, a return to the UK at some point — whether for family reasons, career opportunity, retirement, or changing personal circumstances — is on the horizon. The financial implications of that return are significant, and the time to plan is before the move, not after.

This guide covers the key financial planning steps for returning UK expats, in approximate order of priority. The earlier you begin the planning process, the more options you have.

Understanding Your New UK Tax Position

The first step is understanding what your tax position will be on return.

The Statutory Residence Test: From the date you become UK tax-resident (which, under split-year treatment, may be earlier than 6 April of the relevant tax year), you become subject to UK income tax on your worldwide income arising from that date, and UK CGT on gains arising from that date. Income and gains that arose before you became UK-resident fall outside the UK tax net — the timing of your residency commencement is therefore important to establish precisely.

The FIG regime: If you have been non-UK resident for the preceding 10 consecutive tax years, you qualify for the Foreign Income and Gains (FIG) regime. During your first four years of UK residence, all foreign income and gains (non-UK source) are automatically exempt from UK tax — you do not need to segregate offshore accounts or track remittances. After four years, full UK taxation on worldwide income applies.

This is a significant benefit for returning expats with substantial offshore wealth. The four-year window gives you time to review your offshore holdings and restructure before the FIG exemption ends.

If you do not qualify for FIG — because you have been UK-resident within the last 10 years — you are taxed on the arising basis from day one of your return.

Step 1: Review Your Asset Base Before You Leave

The most valuable planning step is a full review of your worldwide asset base before you return. For each asset, ask:

• What is the current market value?
• What is the original cost for CGT purposes?
• Is there a built-in gain?
• What would the CGT be if sold now (in your current jurisdiction) versus after returning to the UK?
• Is this asset best held personally, in trust, through a company, or in another wrapper?

For assets with significant unrealised gains, selling before UK residence begins is often the most tax-efficient approach. As a non-UK resident, you are generally not subject to UK CGT on non-UK assets (subject to the temporary non-residence rules — see below). Realising the gain while non-resident and restarting the clock on cost means UK CGT applies only to future appreciation from the time of return.

Watch point — temporary non-residence rules: If you have been non-UK resident for fewer than five complete UK tax years, the temporary non-residence (TNR) rules mean gains on assets you held at departure from the UK are taxed in the year of your return. If you have been away for more than five complete tax years, the TNR rules do not apply. If you are returning within the five-year window, dispose of pre-departure assets before you return — not after.

Step 2: Offshore Bond Structuring

If you hold an offshore investment bond, understand how it will be treated on UK residence:

The 5% allowance clock: Offshore bonds allow annual tax-deferred withdrawals of up to 5% of the original premium without immediately triggering a UK tax charge. If you were non-UK resident during part of your bond's life, you may have "accumulated" the 5% allowance for those years — meaning you can take a larger withdrawal on returning without triggering a chargeable event. Take advice on the exact position before returning.

Surrender or partial withdrawal before return: If you plan to surrender the bond or take a large withdrawal, consider doing so before becoming UK-resident (if the FIG regime does not apply, or before FIG runs out). A surrender while non-resident is generally not subject to UK income tax, though your local jurisdiction may tax the gain.

Top-slicing relief: If you cannot or choose not to surrender before return, remember that top-slicing relief divides the total bond gain by the number of years the bond has been held. If the bond has been held for 10-15 years, the "slice" added to your income in the year of surrender may fall in a lower tax bracket, significantly reducing the effective rate.

Step 3: Pension Planning

UK SIPP: If you have a UK SIPP that you have not been contributing to during your time abroad, you can resume contributions from the first tax year of UK residence. The annual allowance (currently £60,000, or 100% of relevant UK earnings, whichever is lower) applies from your first UK tax year. Consider the carry-forward rules: unused annual allowance from the previous three tax years can be used, provided you were a member of a UK-registered pension scheme in those years.

QROPS review: If you transferred your UK pension to a Qualifying Recognised Overseas Pension Scheme while non-resident, you need to review that arrangement before returning:

• Leave in QROPS: If the QROPS is in a country that has a tax treaty with the UK providing mutual recognition of pension arrangements, leaving the fund in QROPS may be tax-efficient — particularly if you plan to retire abroad again in future.
• Transfer back to UK SIPP: Returning the fund to a UK registered pension scheme is possible but may trigger the overseas transfer charge (25% of the fund value) if done within five years of the original transfer to QROPS and if you are now UK-resident. After five years from the QROPS transfer, this charge may not apply.
• Timing of benefits: Consider whether to take QROPS benefits before returning to the UK. Benefits taken before UK residency are taxed under the rules of the QROPS jurisdiction. Benefits taken after return to the UK may be taxable in the UK under the double tax treaty between the UK and the QROPS country.

State pension: If you have gaps in your UK National Insurance record from your period abroad, you may have the option to pay voluntary NI contributions to top up your record. Note that voluntary Class 2 contributions are no longer available to people abroad from 6 April 2026 — overseas contributors must now use voluntary Class 3 (a higher weekly rate), and new applicants must have either 10 years of prior UK residence or 10 qualifying NI years. The deadline and entitlement rules are complex and change periodically — take specialist advice on whether topping up is worthwhile.

Step 4: Split-Year Treatment — Getting the Date Right

In the year of return, split-year treatment divides the tax year into a UK-resident part and a non-resident part. It applies only in specific statutory cases.

The most relevant case for returning expats is Case 8: you have been non-UK resident for the whole of the previous tax year, you arrive in the UK and your only home from the date of arrival is in the UK, and you remain UK-resident until 5 April.

Getting the split-year date right matters because:

• Income and gains arising before the split-year date are not subject to UK taxation (except for UK-source income, which is always taxable in the UK)
• Income and gains arising on or after the split-year date are fully taxable on the arising basis

If you are moving to the UK mid-year, the split-year treatment means you are not taxed as a UK resident for the full year. But the conditions must be met precisely — it is not automatic, and claiming it on a tax return requires confidence that the relevant case applies.

Step 5: ISAs, Investment Accounts, and UK Financial Products

ISA contributions: You can open and contribute to a UK ISA in your first tax year of UK residence, from the date of return. The annual ISA allowance for 2026/27 is £20,000. ISA income and gains are free of UK tax indefinitely — the ISA is one of the most tax-efficient wrappers available in the UK.

New investment portfolio: Any new investment portfolio established after UK residency begins will be subject to UK CGT and income tax on an arising basis (subject to FIG if you qualify). Consider the most tax-efficient account structures for new UK investments.

Investment bonds: If you purchase a new offshore bond after returning to the UK (while you qualify for FIG), the FIG exemption may not apply to the bond if the underlying income is considered UK-source. Seek advice on whether FIG applies to the specific product and investment.

Step 6: Wills and Estate Planning

If you have been using foreign wills, powers of attorney, or other legal documents drawn up in your country of residence abroad, these may not adequately cover your UK assets on return. Review:

• Whether your will covers your UK assets and is valid in the UK
• Whether you have a UK Lasting Power of Attorney (or whether one is needed)
• Whether your estate plan accounts for UK IHT on your return (and the LTR test if you have been away for 10+ years and will quickly reaccumulate years in the UK)

Step 7: Practical Tax Administration

Emergency tax codes: In the first months of UK employment, HMRC typically issues an emergency tax code (BR or W1/M1), which results in higher tax deductions than your correct liability. Notify HMRC promptly of your return and confirm your correct tax code. Any overpayment can be reclaimed via self-assessment.

Self-assessment registration: Register for self-assessment promptly after returning to the UK if you have UK income from sources not taxed through PAYE (rental income, investment income, offshore bond gains, foreign income under the arising basis). The registration deadline is 5 October after the end of the relevant tax year.

How Global Investments Can Help

Returning to the UK involves a significant financial reset. The optimal approach depends on your asset base, where you have been living, how long you were away, whether you qualify for FIG, and your plans for the future. Global Investments specialises in advising returning expats — helping you structure your finances for life back in the UK, maximise the use of any available exemptions, and manage the transition efficiently. The earlier in the process you take advice, the more planning tools are available. Please speak with one of our advisers.