Some UK analysis.
We set out issues with the inheritance tax system and examine options for reform and the distributional impacts of reforming or abolishing the tax.
ifs.org.uk
Bear in mind that the IHT in the UK is not exactly the same as CAT.
Key findings
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.
2.
Exemption thresholds, which allow many couples to pass on up to £1 million tax-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.
4.
The current cost of abolishing inheritance tax would be £7 billion. Around half (47%) of the benefit would go to those with estates of £2.1 million or more at death, who make up the top 1% of estates and would benefit from an average tax cut of around £1.1 million. The 90% or so of estates not paying inheritance tax would not be directly affected by such a reform.
5.
There are several problems with the current design of inheritance taxation.Reliefs for agricultural and business assets and certain classes of shares, and the total exemption of pension pots from inheritance tax, open up channels to avoid the tax and are consequently costly and inequitable and distort economic decisions. The residence nil-rate band, which gives special treatment to property passed to direct descendants, raises similar types of problems and is of greater benefit to those in London and the South. There is a clear case for eliminating the special treatment of all of these types of assets.
6.
Abolishing agricultural and business reliefs and bringing pension pots within the scope of inheritance tax could raise up to around £1½ billion a year. How much revenue would be raised is uncertain and depends on various factors including whether other channels are used to avoid inheritance tax. Making these changes together would reduce the scope for substituting one avoidance channel for another.
7.
Four-fifths of the tax revenue from reform to business relief could be captured just by capping the relief at £500,000 per person, rather than outright abolition. Most business wealth is concentrated among those with high wealth, so the fiscal cost of an additional half a million pounds threshold for business wealth would be low, though the special treatment would remain unfair and distortionary. Around 90% of business wealth bequeathed is given as part of an estate worth over £2 million.
8.
Removing the special treatment for residential property, by abolishing the residence nil-rate band (currently set at £175,000) and extending the nil-rate band from £325,000 to £500,000 would cost around £700 million a year and hold the proportion of deaths resulting in inheritance tax down at around 4%, while making the tax system fairer.
9.
A reform that capped agricultural and business reliefs, brought pension pots within the scope of inheritance tax and abolished the residence nil-rate band could fund an increase in the nil-rate band to around £525,000 or a cut in the inheritance tax rate from 40% to around 25%.
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 often received when people are in their late 50s or early 60s. Around the ages of 50–54, children of the wealthiest fifth of parents have an average of £830,000 in wealth, while children of the least wealthy fifth have on average £180,000. While a reformed inheritance tax could do more to promote intergenerational mobility, big wealth inequalities by parental background already exist before inheritances are received.
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