By Charlie Conchie Some of the country’s top business groups have warned that Rachel Reeves’s rumoured plans to ditch a slew of tax breaks for entrepreneurs at the budget “risk harming” the economy and dissuading founders from setting up companies in Britain. In an open letter to the Chancellor today, four business groups representing over 1200 UK founders and investors, including the Quoted Companies Alliance and fintech trade body Innovate Finance, sounded the alarm on suggestions the government could scrap tax reliefs, including business asset disposal relief and an inheritance tax break on…