The tax implications of a deed of variation come from a single statutory fiction: for inheritance tax and capital gains tax, HMRC treats the redirected gift as if the deceased had written it into the will. That reading-back rule, set out in Section 142 of the Inheritance Tax Act 1984 and Section 62(6) of the Taxation of Chargeable Gains Act 1992, is what makes a variation useful for tax planning rather than just a private rearrangement between beneficiaries. Used correctly, it can shrink an inheritance tax bill, drop the IHT rate from 40% to 36%, and prevent a capital gains tax charge on any growth in value since the death. Income tax works differently, and stamp duty land tax has its own rules. Miss the two-year deadline, leave out a required election, or take payment for signing, and the tax reliefs disappear even though the deed itself remains a valid contract.
How the Reading-Back Rule Works
When a beneficiary signs a deed of variation redirecting their inheritance, HMRC does not treat the change as a gift from that beneficiary to the new recipient. The asset is treated as passing directly from the estate to the new recipient, bypassing the original beneficiary’s estate for tax purposes.
Without this fiction, the original beneficiary would be making a lifetime transfer. That could trigger inheritance tax under the seven-year survival rule if they died soon after, and it would count as a capital gains tax disposal at current market value. Reading back removes both problems. The reliefs apply to inheritance tax and capital gains tax only. Income tax follows its own path, covered below.
Inheritance Tax Outcomes
The inheritance tax nil-rate band sits at £325,000, with an additional residence nil-rate band of £175,000 when a home passes to direct descendants. Both thresholds are frozen until at least April 2028, and the residence nil-rate band remains fixed until April 2030.1GOV.UK. Inheritance Tax Thresholds and Interest Rates Anything above these thresholds is taxed at 40%. A variation lets beneficiaries restructure the estate to make better use of allowances and exemptions.
Redirecting to a Surviving Spouse
Transfers between spouses are fully exempt from inheritance tax. Where a will leaves assets to children or other relatives but the surviving spouse would benefit more from holding them, a variation can redirect that inheritance to the spouse tax-free. Because the deed is read back, the estate is calculated as though the deceased had left those assets to the spouse directly, reducing the taxable value. The surviving spouse’s own nil-rate band is preserved for their eventual death, and any unused portion of the deceased’s nil-rate band can transfer to the survivor at that point.
The 36% Charity Rate
Estates that leave at least 10% of their net value to charity qualify for a reduced inheritance tax rate of 36% instead of 40%, under Schedule 1A of the Inheritance Tax Act 1984.2Legislation.gov.uk. Inheritance Tax Act 1984 – Schedule 1A A deed of variation is one of the most practical ways to reach that threshold after the death. If the original will left nothing to charity, or not quite enough, a beneficiary can redirect part of their inheritance to a qualifying charity within the two-year window. The estate is then recalculated as if the charitable gift had always been in the will. On a large estate, the four percentage points saved on everything above the nil-rate band can exceed the amount given to charity.
Using an Otherwise Wasted Nil-Rate Band
Variations are sometimes used to correct wills that leave the nil-rate band unused. If the deceased left everything to their spouse, the estate passes tax-free on the first death but the nil-rate band is not used in the most tax-efficient way. A variation might redirect £325,000 into a discretionary trust for the family while the rest still passes to the spouse. The trust absorbs the nil-rate band and the spousal exemption covers the remainder. This kind of restructuring was more common before the transferable nil-rate band was introduced, but it still has planning value, particularly for families concerned about care home fee assessments or protecting assets for children from a previous marriage.
Capital Gains Tax Treatment
When someone dies, their assets are treated as acquired by the personal representatives at market value on the date of death. This is the “uplift” in base cost under Section 62(1) of the Taxation of Chargeable Gains Act 1992.3Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 – Section 62 Where a deed of variation then redirects an asset to a different beneficiary, Section 62(6) ensures that the redirection is not treated as a disposal by the original beneficiary. No capital gains tax charge arises on the transfer itself.
The new recipient is treated as having acquired the asset at its market value on the date of death, not on the date the deed was signed. This matters when property or shares have risen in value during administration. Without reading back, the original beneficiary would be treated as disposing of the asset at its current value, creating a taxable gain on the growth since death. Section 62(6) removes that problem, provided the deed contains a written statement that the beneficiaries intend the subsection to apply.3Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 – Section 62
The CGT rule allows one narrow form of consideration: reciprocal variations of the same estate’s dispositions. Two beneficiaries can swap entitlements without losing the relief. What disqualifies it is any consideration in money or money’s worth that goes beyond another variation within the same estate.3Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 – Section 62
Income Tax Does Not Read Back
Income tax follows different rules. Rental income, dividends, and interest belong to whoever was entitled to the underlying asset at the time the income arose. If you were the original beneficiary and you sign a deed of variation three months after the death, you owe income tax on everything the asset earned during those three months. The new beneficiary picks up income tax responsibility only from the date the deed takes effect.
The split requires careful record-keeping. The personal representatives, the original beneficiary, and the new beneficiary all need to agree on exactly when the income liability shifts. The original beneficiary must report the pre-variation income on their own tax return even though they never actually received the underlying asset. Where significant income-producing assets are involved, an accountant is worth the fee.
Stamp Duty Land Tax on Redirected Property
When a variation redirects real property, an assent or appropriation by personal representatives to a beneficiary entitled under a will or intestacy is generally exempt from SDLT under Schedule 3 of the Finance Act 2003. Because reading back treats the new beneficiary as the person the deceased intended to benefit, the transfer should fall within that exemption. Complications can arise if the property has already been assented to the original beneficiary before the variation is signed, or if the variation involves consideration. Confirm the SDLT position with a solicitor before completing any property transfer through a variation.
Conditions the Deed Must Meet
The tax reliefs are not automatic. A deed that works as a contract between beneficiaries can still fail to qualify for reading back if it does not meet every statutory condition.
- Two-year deadline. The deed must be executed within two years of the date of death. No extensions, no exceptions for complex estates, no HMRC discretion.4Legislation.gov.uk. Inheritance Tax Act 1984 – Section 142
- In writing and signed by every beneficiary giving up or redirecting part of their entitlement.4Legislation.gov.uk. Inheritance Tax Act 1984 – Section 142
- No consideration. The original beneficiary cannot receive money or any other benefit for redirecting the inheritance. The one exception, on the CGT side, is reciprocal variations within the same estate.
- Specific tax elections. For inheritance tax, the deed must state that all relevant persons intend Section 142(1) of the Inheritance Tax Act 1984 to apply. For capital gains tax, a separate statement must say the parties intend Section 62(6) of the Taxation of Chargeable Gains Act 1992 to apply. Omit either statement and the deed is still valid but delivers no relief for that tax.4Legislation.gov.uk. Inheritance Tax Act 1984 – Section 1423Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 – Section 62
- Clear identification of which assets are being redirected and which will or intestacy rules governed the original distribution.
One further boundary: a variation that reduces or eliminates a minor’s entitlement, or affects an unborn beneficiary, generally requires court approval before it becomes fully effective. Take legal advice before drafting anything of that kind.
When Personal Representatives Must Sign
If the variation results in more inheritance tax being payable, the personal representatives become “relevant persons” under Section 142(2A) and must sign the deed and the tax election.4Legislation.gov.uk. Inheritance Tax Act 1984 – Section 142 This typically happens when a beneficiary redirects assets away from a spouse or charity, removing an exemption and increasing the taxable estate. Because the executors are responsible for paying the extra tax out of estate funds, the statute lets them refuse if the estate does not hold enough to cover the additional liability.
Where the variation reduces the tax bill or leaves it unchanged, the personal representatives do not need to be parties. Notifying them is still sensible, because the distribution of the estate has changed and they need to know who receives what.
Reporting the Variation to HMRC
Whether you send HMRC a copy of the deed depends entirely on whether it changes the inheritance tax owed. HMRC’s checklist (form IOV2) sets the rule: if the variation increases the tax payable, you must send a copy to HMRC within six months of making it, and the personal representatives must be parties to the deed. If the variation decreases the tax or has no effect on it, nothing needs to be sent.5GOV.UK. Instrument of Variation Checklist – IOV2
Where an inheritance tax return (the IHT400 or the simpler IHT205) has already been filed, the variation effectively amends it. HMRC will check that the required elections are present and the two-year deadline was met. There is no separate form. The signed deed itself, with a covering letter identifying the estate and the deceased, is the reporting document. Keep a copy with the estate papers even when no report is required, because queries can surface years later when the surviving spouse dies or a redirected asset is sold.