Pre-Arrival UK Tax Planning: Steps to Take Before Becoming UK Tax Resident

The most valuable tax planning for someone moving to the UK often happens before they arrive. Once you become UK-resident under the Statutory Residence Test, you are subject to UK income tax on worldwide income (or exempt on foreign income for four years under the FIG regime if you qualify) and UK CGT on most asset disposals. Certain decisions — selling assets, restructuring investments, establishing trusts, reviewing pensions — can only be made tax-free or tax-efficiently if they are made before the date of UK tax residence.

This guide sets out the key pre-arrival planning steps that should be considered by anyone planning to take up UK tax residence, whether returning UK nationals, expatriate professionals, or high-net-worth individuals relocating to the UK for the first time.

Step 1: Establish Your Arrival Date Precisely

The date you become UK-resident determines the starting point for all UK tax obligations. Under the Statutory Residence Test (SRT), your residence status for a full tax year is determined by a combination of day counts, ties to the UK, and whether you meet any of the automatic tests.

For someone arriving in the UK and expecting to become UK-resident, identifying the precise tax year in which residence begins matters enormously:

• You may be able to choose whether UK residence begins in 2025/26 or 2026/27 by controlling the timing of your physical arrival and your UK day count
• Split-year treatment may apply, dividing the tax year into an overseas part (before arrival) and a UK part (after arrival) — this allows pre-arrival disposals to be treated as arising in the non-resident period

Work through the SRT carefully with a qualified adviser before you move. The cases under which split-year treatment applies to an arriving individual (Cases 4-8) each have specific conditions.

Step 2: Review and Crystallise Overseas Capital Gains

Before becoming UK-resident (or, for FIG-eligible individuals, during the FIG period), review your investment portfolio and other assets for unrealised capital gains. Consider whether disposing of assets before UK residence begins is advantageous:

• Gains on non-UK assets disposed of before UK residence begins are not subject to UK CGT — there is nothing to tax in the pre-UK period
• Gains within the FIG period (for qualifying new arrivals in their first four tax years) are exempt from UK CGT on foreign assets — but this exemption is time-limited to four years
• Selling and repurchasing assets before UK residence can "reset" the cost base for UK CGT purposes — once you are UK-resident, gains on those assets begin accruing from the new (higher) cost

This "base cost uplift" is one of the most practically valuable elements of pre-arrival planning. An investor arriving in the UK with a share portfolio that has doubled in value since purchase can sell (paying any local tax) and repurchase before UK residence begins, establishing a fresh UK CGT base at current market value.

Step 3: Review Offshore Trusts and Structures

If you have settled or are connected to offshore trusts, the interaction with UK tax on arrival requires careful analysis:

• Settlor-interested trusts: If you are a settlor of an offshore discretionary trust and you become UK-resident, trust income and gains may be attributed to you under the settlor-interested rules and TCGA s.86 (since the abolition of the non-dom regime on 6 April 2025, these rules apply on a residence basis rather than turning on domicile or deemed-domicile status). Pre-arrival, consider whether the trust structure needs to be amended to break settlor-interest (for example, by excluding you as a potential beneficiary before you become UK-resident)
• Accumulated gains: If the trust has accumulated unmatched gains in its "s.87 pool," distributing those gains to non-resident beneficiaries before they take up UK residence eliminates the s.87 exposure for those beneficiaries
• Excluded property trusts: Non-UK assets settled into a trust before you become UK-domiciled (or before the new long-term residence IHT threshold is reached) may qualify as excluded property for IHT. Pre-arrival trust establishment — particularly for those arriving from countries with low or no local tax on trust contributions — should be considered urgently before the 10-year long-term residence clock begins

Step 4: Review Pension Positions

UK registered pension rules are generous compared with most jurisdictions, but the interaction between overseas pensions and UK tax requires analysis before arrival:

• Overseas pension transfers: Where an overseas pension plan would be more efficiently held (or accessible) as a UK SIPP or other UK-registered arrangement, a transfer should be considered. Once UK-resident, the tax treatment of the transfer and of ongoing contributions changes
• Lump sum drawings: Some overseas pension arrangements allow a one-time lump sum payment that may be tax-free or preferentially taxed in the current jurisdiction. Taking this before UK residence avoids the risk of UK income tax on the lump sum on arrival
• Qualifying Recognised Overseas Pension Scheme (QROPS): For those with UK pension benefits accumulated during previous UK residence, considering whether to transfer to a QROPS before or after arrival (and what the 25% overseas transfer charge implications are) requires careful planning
• US 401(k) and IRA holders: For US-connected individuals arriving in the UK, the treatment of 401(k) and IRA accounts under the UK-US double tax treaty requires specific analysis — distributions may or may not be taxable in the UK depending on the treaty interpretation

Step 5: IHT Planning Before Arrival

UK inheritance tax is charged on worldwide assets of UK-domiciled individuals and (from 2025) on all assets of "long-term UK residents" — those who have been UK-resident for 10 or more of the preceding 20 tax years. Before the 10-year clock starts ticking, pre-arrival IHT planning is essential:

• Establish offshore trusts with non-UK assets before becoming UK-resident. Non-UK assets settled by a non-UK-domiciled individual (who has not yet become a long-term resident) into an offshore trust may constitute excluded property, outside the scope of UK IHT. Once you have been UK-resident for 10 years, this window closes for new settlements
• Gift assets to family members before UK residence begins. Gifts made before UK residence are not potentially exempt transfers (PETs) because the donor was not within the scope of UK IHT at the time — they are outside UK IHT entirely. Gifts made after UK residence and during the first 10 years may be PETs subject to the seven-year rule
• Review UK-situs assets: Even before you become UK-resident, UK-situs assets (UK property, shares in UK companies) are within the scope of UK IHT if you are UK-domiciled. Pre-arrival consideration of whether to hold UK assets directly or through structure is important

Step 6: UK Property — Timing of Purchase

If you intend to purchase UK property, consider the timing carefully:

• Buying UK property before becoming UK-resident means the purchase is subject to the non-resident SDLT surcharge (2%) at the time of purchase — but if you subsequently become UK-resident within 12 months of completion, you may be entitled to claim the non-resident surcharge back
• If the property will be your main residence, principal private residence relief (PPR) may be available from the date of ownership — even for the period before you were UK-resident — as long as you genuinely use it as your main home
• UK property purchased before UK residence begins is immediately within the scope of NRCGT (for the pre-residence period) and then within standard UK CGT (from the date of UK residence)

Step 7: Offshore Investment Bonds — Pre-Arrival Review

If you hold offshore investment bonds, review whether triggering a chargeable event before UK residence begins would produce a better overall tax outcome than holding to maturity after UK residence:

• Chargeable event gains arising while you are non-UK-resident are outside UK income tax (subject to time-apportionment adjustments)
• If the bond is nearing or at a high gain level, full surrender before UK residence eliminates UK tax on the accumulated gain
• If you qualify for FIG on arrival, gains triggered during FIG years are exempt — so the decision is between pre-arrival crystallisation (no UK tax) vs. FIG-period crystallisation (no UK tax) vs. post-FIG crystallisation (full UK income tax)

Step 8: Establish UK Banking and Investment Accounts

Establish UK bank accounts and investment structures before arrival where possible. UK investment ISAs cannot be subscribed to by non-UK residents, but accounts can be set up before you arrive so they are ready. Offshore bonds should be in place before UK residence if they are part of the plan. UK pension contributions are available from the tax year in which UK residence begins.

Timeline for Pre-Arrival Planning

A reasonable planning timeline is to start the process at least six to twelve months before the intended arrival date. This allows time for:

• Trust establishment (offshore trust setup typically takes four to eight weeks but legal review takes longer)
• Asset disposals and repurchases (markets need time and counterparties must be found)
• Pension analysis and HMRC advance clearances
• IHT modelling and gifting decisions
• SDLT and property purchase structuring

How Global Investments Can Help

Global Investments specialises in pre-arrival UK tax planning for internationally mobile individuals and families. We coordinate the full range of pre-arrival decisions — from asset disposal timing and base cost uplift, through offshore trust review and IHT structuring, to pension analysis and UK property planning — working alongside specialist UK and overseas tax counsel to ensure the most efficient transition into UK tax residence. This guide reflects the position as of 2026; tax rules change and circumstances vary materially — professional advice specific to your situation and intended arrival date is essential before acting on any of the strategies described here.