|UK Government Departments|
Prior to the introduction of Estate Duty by the Finance Act 1894, there was a complex system of different taxes relating to the inheritance of property, that applied to either realty (land) or personalty (other personal property):
In 1894, estate duty replaced probate duty, account duty, certain additional succession duties, and temporary estate duty.
Legacy duty and succession duty were later abolished by the Finance Act 1949, followed by the abolition of corporation duty by the Finance Act 1959. The three-year period for gifts made prior to death was extended to five years by the Finance Act 1946, and then to seven years by the Finance Act 1969.
Estate duty became more progressive in scale, eventually peaking in 1969 with the highest marginal rate fixed at 85% of amounts in excess of £750,000, provided that total duty did not exceed 80% of the value of the total estate.
Estate duty was abolished with the passage of the Finance Act 1975, which created the Capital Transfer Tax, with the following characteristics:
For IHT purposes, a person's estate includes:
Excluded property comprises:
Relief is also granted, where the value of the estate is reduced with respect to specified business property, agricultural property, woodlands, certain transfers made within three years of death made at a diminished value, and certain other cases.
Deductions will be made from an estate's nil rate band with respect to transfers of value made in excess of specified limits, other than "potentially exempt transfers" made more than seven years before the transferor's death. Transfers of value made within specified limits are known as "exempt transfers".
Transfers of value will also include gifts arising from the amount by which an asset is sold for less than it could have been sold on the open market, as for a sale from a parent to a child. Gifts can also arise where:
Where the value of such transfers exhausts the amount available to the nil rate band, IHT is assessed on the excess amount, to which the recipients of such transfers bear the liability to pay.
For deaths occurring on or after 1 September 2006, the following estates are effectively excepted from liability for IHT:
|Low value estates||
For claims to transfer the unused nil rate band from the estate of a predeceased spouse or civil partner, the following additional conditions apply:
Where the gross value of the estate does not exceed £1 million and there is no tax to pay because either or both conditions relating to transfers to a spouse or civil partner, or absolute gifts to one or more charities, applies, and no other exemption or relief can be taken into account.
The conditions for these estates are that:
In Scotland, spousal and charity exemptions must be calculated on the basis that any entitlement to legitim against the estate will be claimed in full.
Where the gross value of the estate in the UK does not exceed £150,000.
The conditions for these estates are that:
Tax is assessed at 40% of the net value of the estate, after application of the nil rate band. The applicable nil rate band will depend on the date of death: if the date falls at any time from 6 August to 5 April in a given tax year, the current year's band will apply; but, where the date is after 5 April but before 6 August, and application for a grant is filed before 6 August, the prior year's band will apply.
For deaths occurring after 5 April 2012, the tax is assessed at 36%, where at least 10% of a specified baseline amount of the estate has been bequeathed as charitable gifts. For purposes of calculation, the property of the estate is separated into three components, each of which is tested to see if the charitable gifts are sufficient to qualify for the lesser rate:
If applicable gifts meet the 10% threshold for a given component, in certain circumstances, upon election, the 36% rate applies to the whole estate. There are several options available for estates to be able to achieve that threshold, such as having the will specifying relevant gifts in terms of percentages of assets, or successors executing a deed of variation to attain the desired result.
The Chancellor of the Exchequer's Autumn Statement on 9 October 2007  announced that with immediate effect inheritance tax allowances (often referred to as the nil-rate band) were to be transferrable between married couples and between civil partners. Thus, for the 2007/8 tax year, a married couple will in effect have an allowance of £600,000 against inheritance tax, whilst a single person's allowance remains at £300,000. The mechanism for this enhanced allowance is that on the death of the second spouse to die, the nil rate band for the second spouse is increased by the percentage of the nil-rate band which was not used on the death of the first spouse to die.
For example, if in 2007/08 the first married spouse (or civil partner) to die were to leave £120,000 to their children and the rest of their estate to their spouse, there would be no inheritance tax due at that time and £180,000 or 60% of the nil-rate band would be unused. Later, upon the second death the nil-rate band would be 160% of the allowance for a single person, so that if the surviving spouse also died in 2007/08 the first £480,000 (160% of £300,000) of the surviving spouse's estate would be exempt from inheritance tax. If the surviving spouse died in a later year when the nil-rate band had reached £350,000, the first £560,000 (160% of £350,000) of the estate would be tax exempt.
This measure was also extended to existing widows, widowers and bereaved civil partners on 9 October 2007. If their late spouse or partner had not used all of their inheritance tax allowance at the time of the spouse's death, then the unused percentage of that allowance can now be added to the single person's allowance when the surviving spouse or partner dies. This applies irrespective of the date on which the first spouse died, but special rules apply if the surviving spouse remarries.
In a judgement following an unsuccessful appeal to a 2006 decision by the European Court of Human Rights, it was held that the above does not apply to siblings living together. The crucial factor in such cases was determined to be the existence of a public undertaking, carrying with it a body of rights and obligations of a contractual nature, rather than the length or supportive nature of the relationship.
Prior to this legislative change, the most common means of ensuring that both nil-rate bands were used was called a nil band discretionary trust (now more properly known as NRB Relevant Property Trust*). This is an arrangement in both wills which says that whoever is the first to die leaves their nil band to a discretionary trust for the family, and not to the survivor. The survivor can still benefit from those assets if needed, but they are not part of that survivor's estate.
It is worth noting that as the Government seeks not to profit from the death of those who a) gave their lives in military service, or b) died from the results of a wound, injury, or disease associated with that military service, that the estates of such servicemen and women are exempt, totally, from any Inheritance Tax regardless of the value of the estate even if it amounts to millions of pounds as long as a) or b) apply....and that that exemption is then transferable to the serviceman's or servicewoman's widow or widower. That they do qualify as at a) or b) may be certified by application to the British MOD "Joint Casualty and Compassionate Centre" (JCCC). The JCCC then inform the HMRC of that decision. The exemption does not apply to ex-servicemen or servicewomen who die from other causes unrelated to their military service.
In the summer budget of 2015 a new measure was outlined to reduce the burden of IHT for some estates by providing additional tax-free allowances in cases where the family home passed to direct descendants. This measure, called the Residence Nil-Rate Band (RNRB) came into effect upon the passage of the Finance (No. 2) Act 2015, and provided for the following scheduled amounts:
The Finance Act 2016 provided further relief in cases where all or part of the additional band could be lost, where a person had downsized to a less valuable residence or had ceased to own a residence after 8 July 2015 (and before the person has died). This is conditional upon the deceased having left that smaller residence, or assets of equivalent value, to direct descendants. These are defined as lineal descendants, spouses or civil partners of such lineal descendants, or former spouses or civil partners who have not become anyone else's spouse or civil partner.
The introduction of the RNRB means that a married couple leaving a residence to direct descendants can currently leave up to £900,000 tax-free between them (2018/19 tax year), with this tax-free amount rising to £1 million by April 2020. This tax-free allowance is diminished for estates worth more than £2 million. 
Effective with the 2005-06 tax year, the Finance Act 2004 introduced a retrospective income tax regime known as pre-owned asset tax (POAT) which covers transactions not made at arm's length, where a person either:
and then subsequently benefits from its use.
The person liable for POAT may, while he is still alive, elect on a timely basis to have such transactions treated as gifts with reservations (thus subject to IHT) with respect to such transactions made in a given tax year.
In 2002, Queen Elizabeth The Queen Mother left her estate (estimated at £50 million) to her daughter Elizabeth II, including works of art, jewels, antiques and her thoroughbred racehorses. A deal made back in 1993 ensures that The Queen is spared inheritance tax of an estimated £20 million on her mother's estate.
In 2016 published letters and a prominent article in The Guardian by a leading accountant supported by Jeremy Corbyn criticised the tax-exempt arrangements of many largest landowners and the most capital-endowed. They advocated reform of tax on such wealth and for transparency of trusts, namely:
This critique followed the death of Gerald Grosvenor, 6th Duke of Westminster, whose significant at-death loose "interests", the benefit of which his children by trustees' discretion perhaps receive demonstrate suspected tax savings. The unpublished size of the late Duke's death estate compares with the valuation of the family-related landholdings of c. £9,000,000,000. Critics claim inheritance tax impacts more on the living standards of the middle class and less on plutocrats and the super rich. If the family assets were taxed as if one taxable estate the taxation would equate to the inheritance taxes paid nationally for 2014-2015.
Since c. 2006 tax of 20% must be paid on assets entering most UK non-death trusts combined with periodic charges of between 2% and 6% are due on the total value of the trust every 10 years. This is designed to replicate the 40 per cent death charge once a generation (assuming a normal life span to be around seven decades).
George Hodgson, interim chief executive of the Society of Trust and Estate Practitioners, counter-argued for trusts to remain private on three grounds: many beneficiaries are children or vulnerable adults; the inheritance tax exemptions and counter-tax-planning structures help to protect jobs; "An awful lot of trusts are used to hold family businesses".