IHT Charity Exemption 2026: Cut Your Inheritance Tax Bill by Giving to Charity
Gifts to UK charities are fully exempt from inheritance tax. Leave 10% or more of your net estate to charity and the IHT rate drops from 40% to 36%. How it works in 2026.
Inheritance tax and charitable giving intersect in one of the most tax-efficient corners of UK estate planning. Gifts to charity are completely exempt from IHT -- and leaving at least 10% of your net estate to charity can reduce the rate on everything else from 40% to 36%. Understanding how this works could save your beneficiaries tens of thousands of pounds while supporting causes you care about.
The IHT Charity Exemption: Unlimited Relief
The starting point for charity and IHT planning is the unlimited exemption. Any amount left to a qualifying charity in a will -- or gifted to charity before death under the normal gifting rules -- is completely outside the IHT calculation. Unlike the nil rate band (£325,000) or the residence nil rate band (£175,000), there is no cap on the charity exemption.
A qualifying charity for IHT purposes is generally one that:
- Is established for wholly charitable purposes
- Is registered with the Charity Commission for England and Wales, the Office of the Scottish Charity Regulator, or equivalent bodies in Northern Ireland and the Crown Dependencies
- Is based in the UK, EU or another approved jurisdiction
The exemption applies to outright cash legacies, specific gifts of assets (shares, property, art), and gifts of residuary estate. It also applies to charitable trusts established by the will, provided the trust is itself charitable.
The 36% Reduced Rate: How It Works
Beyond the simple exemption, there is a further incentive to make substantial charitable gifts. If the total charitable legacies from a particular component of the estate equal at least 10% of the "baseline amount" for that component, the IHT rate on the taxable portion of that component drops from 40% to 36%.
The baseline amount is calculated for each of three components separately:
- The general estate (assets owned solely by the deceased)
- Settled property (assets held in trusts in which the deceased had an interest)
- Joint property (assets owned jointly that pass by survivorship)
The baseline amount for each component is the component value less:
- The nil rate band (or the portion allocated to that component)
- Any reliefs such as business property relief or agricultural property relief
- The charitable legacies themselves
In most estates, the general estate is the only component that matters.
Example: A person dies with an estate valued at £900,000. They have the full nil rate band of £325,000 and leave £60,000 to charity.
The baseline amount for the estate component is approximately: £900,000 - £325,000 - £60,000 = £515,000
10% of £515,000 = £51,500
The charitable legacy of £60,000 exceeds £51,500, so the reduced 36% rate applies.
IHT at 36% on £515,000 = £185,400 Less the charity gift of £60,000 (exempt) Total IHT and charity cost to estate: £245,400
Without the reduced rate and without any charity gift, IHT at 40% on £575,000 (£900,000 - £325,000) = £230,000.
The charity gift costs £60,000 but saves £230,000 - £185,400 = £44,600 in IHT. The net cost to the charitable legacy from the estate is £60,000 - £44,600 = £15,400 -- or roughly 25p in the pound.
Structuring Your Will for the 36% Rate
Getting the 36% rate requires careful will drafting. Common approaches include:
Percentage legacy: Rather than leaving a fixed cash sum to charity, leave a defined percentage of the net residuary estate. If the percentage is set correctly, it will automatically adjust to ensure the 10% threshold is met regardless of how the estate value fluctuates between the date the will is written and the date of death.
Formula clause: A solicitor can draft a formula clause that calculates the minimum charitable legacy needed to qualify for the reduced rate and directs that amount to charity, with the balance to family beneficiaries. This maximises the benefit without giving more to charity than necessary to trigger the lower rate.
Named charities or a class: The will can specify particular charities (naming the registered charity number for certainty) or leave a discretion to trustees to choose among qualifying charities.
Deeds of Variation: Post-Death Charity Planning
Not everyone dies with a will that includes charitable legacies. A deed of variation allows beneficiaries who have inherited under a will or intestacy to redirect their inheritance -- either to other individuals or to charity -- and for HMRC to treat the variation as if it had been written into the original will.
This creates valuable flexibility. If an estate attracts IHT at 40% and the beneficiaries are all comfortably wealthy themselves, they may collectively agree to redirect a portion to charity. The resulting saving in IHT benefits the estate rather than HMRC, and the beneficiaries receive less IHT-inefficient wealth while contributing to charitable causes.
Requirements for a valid deed of variation:
- Made in writing
- Signed by the beneficiary(ies) whose entitlement is being varied
- Completed within two years of the date of death
- Contains a statement that the parties intend the variation to have effect for IHT (and, if relevant, CGT) purposes
- The varied assets must not have been previously varied
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When an estate includes assets qualifying for business property relief (BPR) at 100% or 50%, or agricultural property relief (APR), those reliefs reduce the taxable value of the estate significantly. This in turn affects the baseline amount for the 10% charitable legacy test.
For estates with substantial BPR or APR assets, the charitable legacy required to meet the 10% threshold may be smaller in absolute terms than you might expect. An estate with £1 million of trading company shares (100% BPR), a house worth £600,000 and cash of £200,000, with one person's full nil rate bands (£500,000 combined), might have a baseline amount of only £300,000. A charitable legacy of £30,000 would then qualify for the 36% rate.
The Merging Election
Where an estate has multiple components -- for example, a jointly owned property passing by survivorship alongside a general estate -- the IHT rules normally assess the 10% test separately on each component. This can mean the charitable legacies from one component meet the threshold but those from another do not.
The "merging election" allows executors and beneficiaries to treat all or some of the components as a single merged component for the 10% test. This is beneficial where charitable gifts are concentrated in one component and would need to be spread across others to achieve the reduced rate on all taxable assets.
Taking specialist advice from a solicitor or tax adviser when structuring estate plans around the charity exemption is strongly recommended. The interplay between the components, nil rate bands, residences, trusts and the reduced rate is complex, and a small error in drafting or execution can cost beneficiaries significantly more than the cost of professional advice.
Frequently asked questions
Are gifts to charity exempt from inheritance tax?
Yes. Gifts to qualifying UK charities are completely exempt from inheritance tax, regardless of the amount. There is no upper limit on the IHT charity exemption. The charity must be established for charitable purposes and registered with the Charity Commission or HMRC.
What is the reduced 36% IHT rate for charitable estates?
If you leave at least 10% of your net estate to qualifying charities, the inheritance tax rate on the taxable portion of your estate falls from 40% to 36%. This reduced rate applies to the component of the estate (estate, trust or jointly owned property) from which the charitable gift is made.
What is the nil rate band for IHT in 2026/27?
The standard nil rate band is £325,000. Married couples and civil partners can transfer unused nil rate band to the surviving spouse, potentially giving a combined threshold of £650,000. The Residence Nil Rate Band adds a further £175,000 per person (up to £350,000 combined) for estates that include a main residence passed to direct descendants.
What is a deed of variation and how does it help with IHT charity planning?
A deed of variation allows beneficiaries to redirect an inheritance they have already received (or are entitled to receive) to another person or charity, within two years of the death. For IHT purposes, HMRC treats the variation as if it had been made by the deceased in their will. This allows post-death charity planning without needing to update the original will.
Does the 10% charitable legacy have to come from the residuary estate?
Not necessarily. The 10% calculation is based on the 'baseline amount' -- broadly the value of the estate after deducting the nil rate band, charity gifts and reliefs. The charitable gift can come from any part of the estate, but the component (estate, settled property or joint property) is assessed separately to see if its charitable element meets the 10% threshold.
Can I leave assets to an overseas charity and still get IHT exemption?
The charity must be established in the UK, EU, or certain other jurisdictions to qualify for IHT exemption. Charities in the European Economic Area are eligible. Gifts to charities based in the US, Australia or other non-qualifying jurisdictions do not attract the exemption.
What is a charitable remainder trust?
This is a structure, more common in the US than the UK, where assets are placed in a trust that pays income to beneficiaries during their lifetime, with the remainder passing to charity on death. The UK equivalent planning typically involves trusts with life interests and charitable remaindermen, which can achieve similar outcomes within UK law.
Is there a deadline for making a deed of variation?
Yes. A deed of variation must be made within two years of the date of death. After that deadline, any redirections of inheritance are treated as gifts from the beneficiary personally and may have their own IHT or capital gains tax consequences.
How do I instruct the 36% reduced IHT rate in my will?
You should include a specific charitable legacy in your will, drafted by a solicitor, that leaves a percentage of your estate to named charities or a class of charities (e.g. any UK registered charity of the executor's choice). The percentage must be calculated to ensure at least 10% of the baseline amount is left to charity. A solicitor can help ensure the clause is correctly worded and legally effective.
What if my estate barely meets the 10% threshold -- can small adjustments be made after death?
Yes. HMRC has a 'grossing up and rounding' provision that allows the 10% threshold to be tested after some adjustments. There is also a merging election that lets beneficiaries and executors consolidate different components of the estate to check the 10% test on a combined basis, which can make the reduced rate more achievable in complex estates.
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