When the UK ended its non-domicile tax regime in April 2025, the
change was more than just a technical tax reform, it was a signal
that the country's relationship with global wealth had
fundamentally shifted. For over a century, the non-dom rules
allowed internationally mobile individuals to limit their UK tax
exposure; that framework has now gone.
The New Residence-Based Reality
The UK now taxes residents on a worldwide basis. The moment you
become UK resident, your global income and gains are subject to UK
tax, and after a certain period, your worldwide assets may also be
liable for inheritance tax.
This shift does not just affect the ultra-wealthy; it affects
anyone with assets abroad, property back home, or business
interests overseas. Transitional measures exist, but they are
temporary.
