‘Highly damaging’: Capital gains hike would make UK even less competitive Economics Lifting capital gains tax (CGT) would damage the competitiveness of the UK’s already poor tax regime, new analysis suggests. Research by the Tax Foundation suggests that the UK’s tax regime ranked at 30th out of 38 OECD countries in terms of competitiveness, up one place due to the introduction of the full-expensing policy last year. [...]