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Christopher Harborne has entered the top ten of the Sunday Times Rich List, ranking sixth with an estimated fortune of £18.177bn. The latest list, published on 15 May 2026, records a modest 1.4% increase in the total wealth of the UK’s 350 richest individuals and families, now standing at £784bn. At the same time, the number of UK billionaires edged up by one to 157, even as many foreign‑born billionaires have left the country. The Rich List reveals a £784bn fortune pool and a modest rise in billionaire count The Sunday Times Rich List, compiled by Robert Watts, highlights two contrasting trends: a slight growth in overall wealth and a “tale of two exoduses” – one‑sixth of the previous list’s entrants are gone, and a wave of foreign billionaires have relocated abroad. Numbers that matter: Harborne’s £18.2bn stake and the broader wealth distribution Sanjay and Dheeraj Hinduja and family: £38bn David and Simon Reuben and family: £27.971bn Sir Leonard Blavatnik: £26.852bn Idan Ofer: £24.481bn Guy, George, Alannah and Galen Weston and family: £18.939bn Christopher Harborne: £18.177bn Nik Storonsky: £16.411bn Alex Gerko: £16.006bn Sir Jim Ratcliffe: £15.194bn Igor and Dmitry Bukhman: £14.26bn Harborne’s wealth is anchored by a 12% stake in Tether, valued at roughly £17.7bn, and a 14.2% holding in QinetiQ worth £357m. Additional assets include IFX Payments and Eclipse Aerospace. Why the exodus of foreign billionaires matters for UK fiscal policy Watts warns that the departure of foreign‑born billionaires – many moving to Dubai, Switzerland or Monaco – could shrink the domestic tax base. Their assets remain on the Rich List, but the shift reduces the likelihood of UK tax authorities extracting significant revenue, especially as many of their holdings sit in jurisdictions with lighter reporting requirements. What the next Rich List could signal for wealth taxes and offshore assets If the trend of offshore relocation continues, policymakers may face pressure to broaden wealth‑tax proposals or tighten anti‑avoidance rules. Conversely, the modest rise in total wealth suggests that, despite geopolitical shifts, the UK’s high‑net‑worth cohort remains resilient, potentially prompting a focus on transparency rather than outright taxation.