By Jess Jones Prime Minister Keir Starmer has promised that Chancellor Rachel Reeves’ first Budget will prioritise economic growth and wealth creation. But moves to hike taxes that will hurt Britain’s entrepreneurs are putting that pledge in doubt. As British businessman Sir Martin Sorrell warned in City A.M.:“Increasing capital gains tax, especially without index-linking or time apportionment, will drive entrepreneurs and business owners out of the UK.” This sentiment is widely held among British tech leaders. Lewis Liu, chief executive of Eigen, recently bought by Sirion Labs, fears a CGT hi…