The Deed of Variation Two-Year Rule: Rewriting a Will After Death for IHT Purposes in 2026/27
How a deed of variation lets beneficiaries redirect an inheritance within two years of death for Inheritance Tax purposes in 2026/27, and the conditions that must be met for it to work.
Quick answer
A deed of variation is a powerful but time-limited tool: it lets someone who has inherited an asset choose to redirect it β to another family member, into a trust, or to charity β and, provided it's done within two years of the death and meets the formal requirements, have that redirection treated for Inheritance Tax and Capital Gains Tax purposes as though the deceased had left it that way in the first place, rather than as a separate gift from the beneficiary.
Inheritance Tax Calculator
Estimate Inheritance Tax liability on an estate with our UK IHT calculator.
Inheritance tax calculatorWhy the two-year window matters so much
The core benefit of a deed of variation β the tax "read back" treatment β is strictly conditional on the deed being executed within two years of the date of death. Miss that window, and a beneficiary can still legally redirect an asset to someone else, but it will be treated as a new gift from the beneficiary themselves, potentially bringing their own seven-year gifting clock and estate into play, rather than being treated as coming directly from the original estate. This makes the two-year deadline one of the most important dates in post-death estate planning, and it's easy to let it slip by during a difficult period.
A common use: redirecting to a spouse or charity
A frequent reason for using a deed of variation is to reduce the overall Inheritance Tax bill on an estate β for example, if a will left assets to adult children rather than a surviving spouse, a variation can redirect some or all of that inheritance to the spouse, making use of the spousal exemption and reducing (or eliminating) IHT that would otherwise have been due. Similarly, redirecting a portion of an estate to charity can help meet the 10% threshold that reduces the overall IHT rate on the rest of the estate from 40% to 36%, where that wasn't already achieved by the original will.
uk-deed-of-variation-guide-2026Getting agreement from everyone affected
A deed of variation isn't something a single beneficiary can impose on others. Anyone whose entitlement is reduced as a result of the variation needs to formally consent and be a party to the deed β this typically means all beneficiaries whose share is directly affected by the redirection, not just the person initiating the change. Where a will already divides an estate among several beneficiaries, getting a variation agreed can require careful, sometimes sensitive, family conversations.
Telling HMRC
Where a deed of variation changes the amount of Inheritance Tax or Capital Gains Tax that's due, HMRC generally needs to be notified within six months of the deed being executed, and the deed itself has to contain a specific statement making clear it's intended to have effect for tax purposes under the relevant legislation β a deed that redirects assets but omits this statement won't get the favourable tax treatment even if made within the two-year window.
Bottom line
A deed of variation is one of the few genuinely retrospective tools in UK tax planning, but it only works within a strict two-year window, needs the agreement of everyone affected, and requires the correct formal wording β professional advice is strongly worthwhile given how much rides on getting the technical requirements right.
Sources
Frequently asked questions
What is a deed of variation?
A deed of variation is a legal document that lets a beneficiary of a will (or of the rules of intestacy) redirect some or all of their inheritance to someone else, or into a trust, and β if it meets specific conditions β have that redirection treated as if the deceased had made it themselves for Inheritance Tax and Capital Gains Tax purposes.
How long do beneficiaries have to make a deed of variation?
A deed of variation must generally be made within two years of the date of death to be effective for Inheritance Tax and Capital Gains Tax purposes β a variation made after that window can still redirect the asset legally, but won't get the same favourable 'read back' tax treatment.
Do all beneficiaries need to agree to a deed of variation?
Yes β everyone who would be adversely affected by the variation (typically anyone whose entitlement is being reduced) needs to consent and be a party to the deed; it cannot be imposed by one beneficiary redirecting an inheritance without the agreement of others whose share is affected.
Why would a beneficiary want to redirect their own inheritance?
Common reasons include reducing the overall Inheritance Tax liability on the estate (for example, redirecting assets to a spouse or to charity to use an exemption), passing wealth more efficiently down a generation, or correcting a will that didn't reflect the deceased's actual wishes or family circumstances.
Does HMRC need to be notified of a deed of variation?
If the variation changes the amount of Inheritance Tax or Capital Gains Tax payable, HMRC generally needs to be notified within six months of the deed being made, and the deed itself must contain a specific statement confirming it is intended to have effect for tax purposes.
Try the calculators
Related reading
Pensions and Inheritance Tax From April 2027: Why Planning Ahead Matters Now
From April 2027, most unused pension funds will be brought within the scope of Inheritance Tax on death. What's changing, who's affected, and what to consider before then.
Inheritance Tax Planning Strategies for 2026/27 β Act Before April 2027
IHT is 40% above Β£325,000 β but with the right strategies, married couples can pass on up to Β£1 million tax-free. Full 2026/27 guide covering the 7-year rule, annual exemptions, Business Property Relief, and the critical April 2027 pension change.
Inheritance Tax in 2026/27: How the Β£325k and Β£500k Thresholds Actually Work
IHT at 40% sounds brutal β but couples can shield up to Β£1M. Here's exactly how the nil-rate band, residence nil-rate band, taper relief and the coming pension changes work in 2026/27.