1. Inherited wealth is growing -and set to continue to grow -compared with earned incomes, and it will have a growing impact on inequalities by parental background. While inheritances will remain small for those with the least wealthy fifth of parents, for those with the wealthiest fifth of parents they are set to rise from averaging 17% of lifetime income for those born in the 1960s, to averaging 30% of lifetime income for those born in the 1980s. If the annual flow of non-spousal inheritances next year was equally shared across those aged 25, this would imply each receiving around £120,000.
Exemption thresholds, which allow many couples to pass on up to £1 milliontax-free, mean that the share of deaths resulting in inheritance tax is small, at around 4% in 2020-21, but a larger and growing proportion are potentially affected by the tax. The proportion of deaths resulting in inheritance tax is set to grow to over 7% by 2032-33. The number of people affected by inheritance tax will be still larger. By 2032-33, one in eight people (12%) will have inheritance tax due either on their death or their spouse or civil partner's death.
3.Inheritance tax revenues are small, at £7 billion (or 0.3% of GDP) a year. However, we forecast that by 2032-33 they will rise to just over £15 billion in today's prices (0.5% of GDP), driven by increasing levels of wealth held by subsequent generations of retirees. It is of growing importance that this tax is well designed.1 Advani acknowledges funding from his Nuffield 'Broad Shoulders' grant (WEL/FR-000023787) and a grant from the Economic and Social Research Council (ES/W012650/1). Sturrock acknowledges funding from an ESRC grant (ES/V001248/1). Both authors thank Stuart Adam and Emma Chamberlain for comments.10. Increasing the nil-rate band to hold the share of deaths resulting in inheritance tax down at its long-run average of 4% would require a nil-rate band of £380,000 and cost around £900 million a year. The cost of limiting the scope of the inheritance tax system in this way would grow over time, reaching £2.7 billion by 2032-33. 11. There are other changes to taxation at death that would improve efficiency and fairness, and raise revenue. Levying capital gains tax at the point of death would raise around £1.6 billion a year. Levying income tax on withdrawals from inherited pension pots regardless of the age at which the giver passed away would also raise further revenue.12. Inheritance tax as currently designed has only a small impact on the distribution of inheritances received and therefore on intergenerational wealth mobility. The wealthiest fifth of donors will bequeath an average of around £380,000 per child, and pay inheritance tax of around 10% of this amount. By contrast, the least wealthy fifth of parents will leave less than £2,000 per child. To have a larger impact on intergenerational mobility, inheritance tax would have to be substantially expanded in scope.13. By the time inheritances are received, wealth inequality is already substantial.Inheritances are most ...