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New Tax Regime for Non-Doms takes effect

Mark Spalding, Director, Private Clients
28/05/2025
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In the Budget held on 30 October 2024, the newly elected Labour Government confirmed the most significant changes to the taxation of non-doms and their offshore structures that we have seen for many years.

These changes came into effect from 6 April 2025. The following insight summarises the new regime and offers some thoughts on how to navigate the issues.

The old regime that applied until 5 April 2025

Individuals

UK resident non-doms were individuals living in the UK with a domicile outside the UK and who had no intention to remain in the UK permanently or indefinitely. For the first 15 years of UK residence, they could claim the ‘remittance basis’ in respect of foreign income and capital gains (‘FIGs’) such that these FIGs were only chargeable to UK tax if and when these were brought to or enjoyed in the UK. They remained chargeable to UK tax on their UK income and capital gains in the year that they arose (the ‘arising basis’).

After 15 years of UK tax residence they become ‘deemed UK domiciled’ and no longer eligible for the remittance basis, meaning a move to worldwide taxation on income and gains on an arising basis.

Turning now to inheritance tax, UK resident non-doms were chargeable to UK IHT only on the value of their assets situated in the UK. The exposure to UK IHT extended to worldwide assets once these individuals became deemed UK domiciled after 15 years of UK residence. The non-UK assets of a deemed dom leaving the UK remained within the scope of IHT for three years following their departure from the UK (the ‘IHT tail’).

Trusts

Before becoming domiciled (actual or deemed), individuals could settle assets into an offshore Trust (‘protected settlements’) so that trust income and gains (with the exception of UK source income) were not chargeable to UK tax unless matched to distributions or benefits provided to beneficiaries. Furthermore, any non-UK assets held within these settlements remained outside the scope of IHT, even when the settlor had become UK domiciled or deemed domiciled.

The new regime applying from 6 April 2025

Despite headlines to the contrary, domicile is a common-law concept and has not been abolished. However, from 6 April 2025 it is no longer relevant in determining liability to UK tax. Instead, a new residence-based regime now applies for income tax, capital gains tax (CGT) and IHT purposes.

UK tax residence for any year from 2013/14 will be determined by reference to the Statutory Residence Test (SRT) The pre-SRT rules will apply for earlier years.

Split-years under the SRT and years of dual residence where an individual is treated as treaty resident in another jurisdiction will also count as years of UK residence under the new regime.

The use of domicile to determine liability to UK tax was quite an outdated concept in these days of greater international mobility. It could also be quite subjective and in recent years we have seen an increasing number of lengthy and costly HMRC enquiries into clients’ domicile status. The SRT offers certainty on residence for a tax year and now becomes crucial in determining an individual’s exposure to UK taxes. Domicile will however continue to be important in relation to historic offshore structures in determining their exposure to UK tax.

Individuals

The new Foreign Income and Gains (FIG) regime 
  • The default position from 6 April 2025 is that individuals will be chargeable to tax on their worldwide income and capital gains as they arise.
  • The remittance basis will continue to apply only to tax FIG that arose in years prior to 2025/26 in which the remittance basis was claimed and is remitted to the UK after 5 April 2025.
  • Individuals (including those who are UK domiciled) who have not been UK resident for at least 10 years prior to their arrival will not be chargeable to UK tax on their FIGs arising during their first four years of UK tax residence, regardless of whether or not any of these FIGs are remitted to the UK.
  • Individuals who had already become UK resident before 6 April 2025 will qualify for the FIG regime for any year after 5 April 2025 that falls within their first four years of residence. For example, somebody who first became UK resident in 2023/24 would qualify for the FIG regime for 2025/26 and 2026/27, being their third and fourth year of residence.
  • A claim for the FIG regime to apply for a year must be made via the Self Assessment tax return for that year, and the return must also quantify the FIG to which the claim applies.
  • A claim can be made for either income or gains, or both, on a source-by-source basis. It is not necessary to claim relief for all foreign income and/or all foreign gains. A claim can also be made independently for Overseas Workday Relief purposes (see below).
  • A claim will result in the loss of the income tax personal allowance and CGT annual exemption for the year of claim. Foreign income losses and foreign capital losses of the year of claim will also not be allowable.

The FIG regime represents an attractive-short term benefit for new arrivals but the four-year period does not compare favourably with the duration of similar schemes on offer from other jurisdictions.

The requirement to identify and report in annual tax returns the FIGs not chargeable to tax is an unwelcome administrative burden. It will also provide HMRC with significantly more detail of individuals’ offshore assets and investments than was previously available under the remittance basis regime.

Planning considerations

  • Keep investments offshore to maximise the FIG exempt from tax.
  • Non-doms who became subject to the arising basis from 6 April 2025 (and individuals ceasing to be eligible for the FIG regime in the future) could consider the use of UK structures such as family investment companies to hold wealth, or tax wrappers such as offshore investment bonds to roll-up income and gains.
Temporary Repatriation Facility (TRF) 
  • The new TRF is aimed at encouraging individuals to remit to the UK FIGs that arose in years prior to 2025/26 where the remittance basis was claimed.
  • The original Conservative proposal was for a TRF period of two years. This has been extended to three years from 6 April 2025.
  • Individuals can ‘designate’ and pay tax on FIGs of earlier years in their Self Assessment tax returns for 2025/26, 2026/27 and 2027/28. Those FIGs can then be remitted to the UK in the year of designation or at a later time with no further charge to tax.
  • The reduced rates of tax applying to designated income and gains are 12% for both 2025/26 and 2026/27, and 15% for 2027/28.
  • It is possible to designate and pay tax at these reduced rates on all or a proportion of a source of mixed funds including FIGs, even where it is not possible to accurately analyse the source of the funds.
  • It is also possible to designate and pay tax on illiquid assets (for example an investment purchased with FIGs).
  • Special mixed fund matching rules apply to ensure that any designated amount in a mixed fund will be treated as being remitted first in preference to other amounts in the fund.
  • It is however possible to set up a “TRF capital” account offshore to which designated amounts can be transferred in anticipation of a future remittance to the UK.

The TRF represents a welcome transitional relief for those non-doms who have previously claimed the remittance basis and do not qualify for the FIG regime - particularly those who may be running low on clean capital, and those who anticipate remaining UK resident in the near future.

It will work differently than most advisers had originally anticipated. Rather than just remitting pre-6 April 2025 FIGs in one of the three years to 2027/28 and paying the reduced amount of tax for that year, it is instead necessary to designate and pay tax at the reduced rate on amounts to remit, which can then be remitted at any time as required. This offers a certain amount of flexibility, both in terms of spreading the tax cost over the three TRF years and the ability to take advantage of the lower rates of tax on sums intended to be remitted after 5 April 2028.

Planning consideration

  • Consider operating a separate TRF capital account offshore to hold designated and tax-paid funds available for future remittance.
Rebasing
  • Previous remittance basis users who were not UK domiciled or deemed domiciled at 5 April 2025 can rebase foreign assets held personally on 5 April 2017 to their market value at that date in calculating capital gains arising on disposals after 5 April 2025.  Rebasing can be done on an asset-by-asset basis.
  • Those long-term UK residents who became deemed domiciled on 5 April 2017 under the rules which took effect from that date have already been able to rebase personally held assets at 5 April 2017. They will remain eligible to rebase provided they remain not-UK domiciled for common law purposes on 5 April 2025.

It appears that 5 April 2017 has been selected to align with the rebasing date for those who became deemed domiciled at that date. However, as the rebasing facility is only available for assets that have been held for at least eight years at 6 April 2025, it will be of relatively limited application.

Overseas Workday Relief (OWR)
  • OWR was previously available to UK resident non-domiciled employees for the year of arrival in the UK and the following two years. Employment income relating to overseas workdays was not chargeable to UK tax if paid offshore and not remitted to the UK.
  • From 6 April 2025 eligibility to OWR follows eligibility to the FIG regime and therefore applies for the year of arrival and the following three years.
  • An OWR claim is required under the FIG regime, resulting in the loss of the income tax personal allowance and CGT annual exemption for the year of claim. Foreign income losses and foreign capital losses of the year of claim will also not be allowable.
  • There is no requirement for the earnings relating to overseas workdays to be paid and retained offshore. These can be paid direct to a UK account and will be exempt from tax under the FIG regime.
  • OWR is however capped annually at the lower of 30% of the employee’s income from the employment to which the OWR claim relates or £300,000.

The alignment of OWR with the FIG regime is sensible and extends eligibility for the relief for a further year. The simplification of the operation of the relief is also welcome, as is the ability to receive the earnings relating to overseas workdays in the UK with no liability to tax. However, we can see no good reason why the relief should be capped annually.

Planning Consideration

Where it is possible to control the date of commencement of the UK employment, consider delaying this until early in a new tax year to maximise four-year FIG period.

IHT
  • From 6 April 2025, exposure to IHT on non-UK assets is now determined by whether individuals are ‘long-term resident’ at the time of the chargeable event (including death).
  • The new regime looks at the 20 tax years immediately prior to the year of the chargeable event, and if individuals have been UK resident for at least 10 of those 20 years they will be treated as long term resident.
  • When individuals leave the UK, the IHT tail (the period for which IHT will continue to apply to non-UK assets) will depend on how many of the 20 years prior to the year of departure have been years of UK residence. For 10 to 13 years of residence, the tail will be three years, increasing by one year for each additional year of residence to a maximum tail of 10 years for a full 20 years of residence.
  • For example, somebody who has been resident for 15 of the previous 20 years will have a five-year tail.
  • For individuals who are 20 years old or younger, the test for long term residence is whether they have been UK resident for at least 50% of the tax years since their birth.

The original proposals mentioned only 10 years of residence with a 10-year tail, so the rather more nuanced approach now introduced offers some welcome flexibility. However, it still brings non-UK assets into charge to IHT at a much earlier stage than under the previous non-dom regime (after 10 years rather than 15) and generally gives a longer tail.

Individuals who have left the UK permanently will now have certainty that their non-UK assets will be outside the scope of IHT on expiry of the tail, which was often not the case under the previous domicile test.

It remains to be seen how easy will it be for HMRC to monitor continuing liability to IHT for individuals who have left the UK permanently – particularly those with a long tail.

Planning considerations

  • Accelerate gifting of assets if appropriate to minimise IHT exposure.
  • Consider insurance to cover potential additional IHT liabilities.
  • Consider term-insurance to cover IHT exposure for a tail period. 
  • Non-long-term residents should remit under the TRF only what is required in the UK, as remitted funds will fall within the scope of IHT.
  • Consider whether the UK’s IHT double taxation agreements will shelter non-UK assets from IHT.

Trusts

Income and capital gains tax
  • The previous trust protections no longer apply after 5 April 2025 to all current and new trusts.
  • As a result, a settlor retaining an interest in a trust will generally be chargeable to tax on all income and gains arising in the trust.
  • However, where the settlor qualifies and makes a claim, the FIG regime will apply to FIGs of the trust for the first four years of the settlor’s UK residence.
  • Where a beneficiary qualifies, the FIG regime will also apply to income and capital distributions and to benefits received by that beneficiary.
  • The TRF extends to capital payments to UK resident beneficiaries from an offshore trust that match to pre-6 April 2025 FIG of the trust.
  • The previous income tax and CGT ‘motive defences’ (that broadly apply where a trust was not set up with any UK tax avoidance motive) will continue to apply, but are subject to review and may possibly be restricted or removed with effect from 6 April 2026.

Despite lobbying in summer 2024, it was always unlikely that the existing trust protections would survive the change to a Labour government.

Planning considerations

  • Consider excluding the settlor and other individuals from benefit.
  • An existing trust could settle a new trust and exclude the settlor and other individuals from benefit from the new trust to reduce exposure to tax on the settlor.
  • Consider the use of tax wrappers such as offshore investment bonds to roll-up trust income and gains.
  • Consider whether the motive defences will apply to exempt trust income and capital gains from UK tax, at least for 2025/26.
IHT
  • Despite intensive lobbying in summer 2024, the IHT protection for non-UK assets held in existing offshore trusts ceased from 6 April 2025.
  • Exposure to IHT on non-UK assets held in trust now follows the long-term residence status of the settlor. Whilst the settlor is long-term resident (and for the period of the tail) all assets of the trust are treated as relevant property for IHT purposes.
  • The trust therefore becomes subject to a charge (of up to 6%) under the relevant property regime on each 10-year anniversary of its formation, and an exit charge on each occasion of relevant property leaving the trust (including at the end of the tail, when the non-UK assets will cease to be relevant property).
  • Where the settlor died before 6 April 2025, the exposure of non-UK property within the trust is determined using the previous test – the settlor’s domicile at the time the property became comprised in the trust.
  • For new trusts settled after 30 October 2024, where the settlor retains an interest in the trust and is a long-term resident at their death the existing ‘gift with reservation of benefit’ (GWROB) rules will apply to treat all trust asset as remaining within the taxable estate of the settlor for IHT purposes.
  • The GWROB rules do not apply to non-UK assets of trusts settled and funded by 30 October 2024. They do however apply to any assets subsequently added to those trusts.

Again, the loss of IHT trust protections was always unlikely to survive the change to a Labour government, although the exclusion of existing trusts from the double-taxation resulting from the GWROB rules is a welcome relief. The application of the excluded property rules to tax 10-year anniversaries and exits requires careful monitoring and adds a further layer of compliance. However, older settlors may think that one or possibly two 10-year charges at a maximum of 6% is a price worth paying to avoid IHT at 40% on death.

Planning considerations

  • Review and monitor the long-term residence status of settlors.
  • Settling non-UK assets on a family trust from which the settlor is excluded from benefit before the settlor becomes long-term resident will shelter those assets from IHT on the settlor’s death. However, the trust would become subject to the relevant property regime when the settlor becomes long-term resident.

 

Individuals affected by the changes will have been taking stock of their affairs and considering how they might restructure in readiness for the new regime. Non-doms who remain in the UK will be navigating several sets of rules which adds complexity and cost. Others have left with the intention of managing their days carefully, so they break UK tax residence.  Maintaining real time records is vital to ensure non-residence status can be maintained and evidenced in the event of a HMRC enquiry.

It is fair to say exposure to UK IHT on worldwide assets is of grave concern to many so considering the application of IHT tax treaties is now more relevant than ever in trying to minimise exposure.

The attractiveness of the FIG regime to new arrivals remains to be seen, particularly in a relatively short period of four years and the complexity associated with making a claim and level of disclosure required under self assessment.

Will the UK perhaps become a short-term tax haven for those wishing to undertake transactions free of tax?

This note is intended as an overview of the new legislation and does not constitute advice. For detailed advice on the application of the new regime to your own particular circumstances please get in touch with your usual Crowe contact.

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Jennifer McNally
Jennifer McNally
Partner, Private Clients
London