Andy Burnham’s ascent to Labour leadership has triggered alarm among Britain’s tech investors over potential capital gains tax hikes and a new exit tax. Burnham’s allies, including Louise Haigh and Noah Law, have publicly called for aligning CGT rates with income tax—currently 18% and 24%—to 20%, 40%, or 45%, and for introducing an exit levy on entrepreneurs leaving the UK. Miatta Fahnbulleh, a key economic adviser to Burnham, has long backed taxing wealth like work. Wes Streeting, the favourite to become chancellor, advocates a reform package that would equalise rates while offering reliefs for founders and indexation for inflation. Critics warn the uncertainty alone could drive entrepreneurs abroad and damage the UK’s tech ambitions, with HMRC estimating that even a five-percentage-point CGT rise could cost the Exchequer £870 million a year. Proponents, however, argue a full reform could raise an additional £14 billion annually across CGT and income tax.