The New UK FIG Regime: The Historic Transition to a Residence-Based Tax Model

6 April 2025 marks a historic milestone in the tax legislation of the United Kingdom. With the definitive abolition of the historic remittance basis of taxation and the removal of the concept of domicile as a relevant connecting factor for income and capital gains tax, replaced for Inheritance Tax (IHT) purposes by a long-term residence test with specific tail rules, His Majesty's Revenue & Customs (HMRC) has implemented a profound structural reform. This legislative shift replaces a model centered on family origin and long-term intent of permanence with a modern, simplified system based strictly on tax residence. The core of this reform is the new four-year Foreign Income and Gains (FIG) regime, which offers a complete exemption from UK tax on income and capital gains arising outside the UK during the first four years of tax residence, whilst allowing these funds to be brought into the country free from any additional tax charges.

This fiscal restructuring represents both a strategic opportunity for attracting international capital and a major technical challenge for tax advisors and high-net-worth individuals. The transition requires a meticulous analysis of eligibility criteria, the rigidity of temporal limits, and the collateral consequences of opting into this regime, particularly regarding the loss of personal allowances and long-term wealth planning.

The End of an Era: From the Remittance Basis to the FIG Regime

For over a century, the UK tax system granted preferential treatment to individuals classified as "non-domiciled" (non-doms). Under the old remittance basis system, these taxpayers could avoid UK tax on their foreign income and gains as long as those funds were kept outside the United Kingdom. However, this model created significant economic distortions, as it disincentivized the introduction of capital into the local economy and required extremely complex tracking of fund transfers to avoid what the legislation deemed a taxable remittance.

From 6 April 2025, this scheme has ceased to exist. The remittance basis of taxation has been abolished, and the concept of domicile has been replaced by a system based on tax residence. Under this new paradigm, all UK residents are, as a general rule, taxed on the arising basis of assessment on their worldwide income and gains, meaning their global income and gains are subject to UK tax unless they actively qualify for and claim the FIG regime.

It is vital to emphasize that the FIG regime is legally distinct from the old remittance basis. Under the previous system, bringing foreign funds into the UK triggered an immediate and complex tax liability. In contrast, under the FIG regime, eligible foreign income and gains arising during the first four years of residence are entirely exempt from UK tax, regardless of whether they are kept abroad or brought into, repatriated, or spent within the country. This exemption from additional charges on remittances represents a radical shift in British tax philosophy and aims to encourage direct investment in the local economy.

Eligibility Criteria and the Statutory Residence Test

Access to the FIG regime is neither universal nor automatic. To qualify as a "qualifying new resident," a taxpayer must meet strict tax residence criteria determined by the Statutory Residence Test (SRT). The central requirement is that the individual must have been a non-UK tax resident for at least ten consecutive tax years immediately preceding their arrival or return to the country.

Once tax residence is established in the UK under the SRT after this ten-year period of absence, the taxpayer enters their four-year tax eligibility window. This four-year period begins in the first tax year the individual becomes a UK tax resident and runs on a strictly consecutive basis.

A critical aspect that taxpayers must consider is the temporal rigidity of the regime. If an individual decides to temporarily leave the UK during this four-year period and becomes a non-UK tax resident for SRT purposes, the years spent abroad still count towards the four-year limit. The period is not suspended, postponed, or carried forward to future years. Therefore, any break in physical residence within the UK consumes eligibility time with no possibility of recovery, demanding highly precise chronological planning by international taxpayers.

Legal Boundaries and Critical Distinctions

To prevent interpretative errors that could lead to severe tax contingencies, it is necessary to clearly delineate the FIG regime from other instruments and concepts within the British tax system.

First, the FIG regime must not be confused with the old remittance basis, as they are legally distinct instruments with opposite tax consequences regarding the repatriation of funds. While the remittance basis penalized the introduction of capital into the UK, the FIG regime permits it freely without additional charges.

Second, the FIG regime is legally distinct from Overseas Workday Relief (OWR). OWR is a specific relief designed for employees performing part of their duties outside the UK who meet specific employment-related eligibility criteria, regulated separately by HMRC. Although a taxpayer eligible for the FIG regime may also qualify for OWR regarding their foreign employment income, qualifying for one does not automatically imply the application of the other. Each relief has its own quantification rules and must be claimed independently.

Finally, the FIG regime must not be confused with the Statutory Residence Test (SRT). The SRT is the general statutory framework used to determine whether an individual is a UK tax resident for a given tax year, whereas the FIG regime is an optional tax benefit applicable only to those who, having been determined as residents under the SRT, also meet the ten-year non-residence requirement.

The Mechanics of the Annual Claim and Loss of Allowances

One of the most important warnings emphasized by the British tax authority is that the FIG regime does not apply automatically. To benefit from the relief, the taxpayer must make an active and explicit claim on their Self Assessment tax return using the relevant supplementary page, specifically the SA109 form (Residence, foreign income and gains regime etc.). This claim must be submitted annually for each of the tax years within the four-year period in which the benefit is sought.

Choosing to claim the FIG regime carries a direct financial cost that must be evaluated through a cost-benefit analysis. By making a claim under the FIG regime, the taxpayer loses their entitlement to personal allowances for income tax and the capital gains tax annual exempt amount, in accordance with official HMRC guidance (HMRC Guidance, 2025).

For taxpayers with moderate foreign income, the loss of these personal allowances may outweigh the benefit of the exemption on foreign income. Therefore, opting for the FIG regime must be the result of a rigorous mathematical calculation comparing the tax savings achieved on foreign income against the increased tax burden on UK-source income due to the loss of personal deductions.

Practical Implications and Wealth Planning

The introduction of the FIG regime radically alters international wealth structuring strategies. Under the previous system, tax advisors recommended the strict segregation of offshore bank accounts (capital accounts, income accounts, and gains accounts) to avoid the contamination of funds that could trigger accidental and costly remittances. Under the new regime, this account segregation complexity disappears during the first four years exclusively for new income and gains generated under the FIG regime from 6 April 2025, while strict segregation must be maintained for funds and investments pre-existing that date if they are to be brought into the UK, thus allowing for a much more fluid and efficient treasury management solely for new flows.

However, the brevity of the four-year window requires taxpayers to begin planning their exit from the regime or the restructuring of their assets from the moment they arrive in the UK. From the fifth tax year of residence, the individual will inevitably transition to the arising basis of taxation on their entire worldwide income and gains, regardless of source or repatriation. This may require the liquidation of offshore structures, the distribution of dividends accumulated during the exempt period, or the relocation of assets before the four-year window expires.