By Elliot Gulliver-Needham Fear among retail investors is building in the face of this week’s Budget, with Chancellor Rachel Reeves’ rumoured changes to capital gains tax and inheritance tax hanging over the heads of individual stockpickers. While capital gains tax currently sits at 20 per cent, speculation has spread that it could be hiked when the government lays out its fiscal plans on Wednesday, leaving investors paying a heftier charge on the profit from their shares. Only 350,000 people pay capital gains tax – around 0.65 per cent of the UK. However, amateur traders are likely to be amon…