As the Institute for Fiscal Studies (IFS) reveals the potentially substantial tax revenues at stake, the spotlight shines on the non-domiciled individual taxation system in the UK. A comprehensive analysis by the IFS shows that reforming this complex regime could bring in a staggering £1.5 billion to £3 billion annually, depending on the approach taken.
The current 'remittance basis' allows non-dom individuals to pay tax only on foreign income and gains brought into the country. In contrast, UK-domiciled individuals are taxed on their worldwide income and gains, regardless of where they arise or are remitted. The IFS suggests that a shift towards a residency-based system, similar to those in other developed nations, could increase revenue but also risk alienating high-net-worth individuals who might choose to leave the UK.
Among the options considered by the IFS is introducing a more straightforward approach based on residency, after a certain period. This would tax individuals based on their residence in the UK rather than their domicile. While such a change could boost revenue, it also poses risks for the UK's competitiveness as an international destination for talent and capital.
The Labour Party has long advocated for abolishing non-dom status, proposing a modern scheme based on residency where all UK residents would pay tax on their worldwide income and gains, with a short grace period for new arrivals. This aligns with one of the more far-reaching reform options discussed by the IFS, which would see the UK adopting tax regimes similar to those in countries like Canada or Sweden.
The Conservative Government has already announced its own reforms to the non-dom regime, set to take effect from April 2025. These changes introduce a new four-year 'foreign income and gains' (FIG) regime for individuals who become UK tax resident, replacing the existing remittance basis. After four years of UK tax residency, individuals will be liable for UK tax on their worldwide income and gains, regardless of whether they are remitted to the UK.
The debate surrounding non-dom taxation is not new, but the IFS's detailed analysis provides policymakers with crucial data and modelling. The implications for the UK's public finances and its standing as an international financial centre are significant, making this a critical juncture in shaping the future of tax policy.