The UK is a wealthy nation but that wealth is very unevenly distributed. This has negative implications for both economic prosperity and justice. These issues are set to become more important as technological change, stagnating wages and rising house prices increase the income and gains that can be made from wealth. The UK’s system of wealth taxation currently fails to tackle these issues. In fact, it frequently exacerbates them by creating opportunities for avoidance, distorting investment decisions, poorly capturing wealth transfers and undertaxing income from assets, particularly housing. This is unjust.