Cross-border · Journal
Deeds of Variation and US Gift Tax
A UK deed of variation reads back to the deceased for HMRC, but for a US beneficiary the IRS sees a gift. When Form 709 applies and how to avoid it.
A UK deed of variation reads back to the deceased for HMRC, but for a US beneficiary the IRS sees a gift. When Form 709 applies and how to avoid it.
A UK deed of variation lets a beneficiary redirect an inheritance and have HMRC treat the change as the deceased's own wish. The IRS does not: if the person redirecting is a US citizen, it usually sees a taxable gift by them, reportable on Form 709 once it exceeds the annual exclusion.
That mismatch catches families every year. The UK side of the plan is often sound: the variation is signed in time, it carries the right statement, and it saves Inheritance Tax or keeps a home in the family. Then the American beneficiary who gave something up discovers they have made a gift for US purposes, may owe a gift tax return, may have created a foreign trust, and may have moved their own US tax basis around. This guide sets out how the two systems treat the same document, and what to check before an American signs one.
A deed of variation, which HMRC calls an instrument of variation, is a written document in which a beneficiary of an estate gives up some or all of what they were left, so that it passes to someone else. Under section 142 of the Inheritance Tax Act 1984, if the conditions are met the redirection is treated for Inheritance Tax as if the deceased had made it. Section 62(6) of the Taxation of Chargeable Gains Act 1992 gives the same reading-back for Capital Gains Tax.
The conditions are strict. HMRC's Inheritance Tax Manual is explicit that a variation must be made within two years of the date of death, with every party signing inside that period, and that there is no discretion to extend it. The document must also contain a statement that the parties intend section 142 to apply. HMRC's instrument of variation checklist (IOV2) walks through the formal requirements and is the document most solicitors work from.
Families use variations for good reasons: to redirect assets to grandchildren, to pass a share to a charity, to use the deceased's nil-rate band of £325,000 more efficiently (gov.uk IHT thresholds), or simply to even out a will that no longer reflects the family's circumstances.
For US gift and estate tax the question is not what HMRC thinks the deceased intended. It is whether a US person, having become entitled to property, has transferred it to someone else for less than full value. A deed of variation does precisely that: the American beneficiary was entitled to the share under the will or intestacy, and chose to send it elsewhere.
So, unless the redirection qualifies as a disclaimer under US rules, the American is treated as making a gift. The UK document can be perfectly valid, and HMRC can accept it in full, while the IRS treats the same signature as a lifetime transfer by the beneficiary.
| Question | UK treatment (section 142 IHTA 1984) | US treatment |
|---|---|---|
| Who is treated as making the transfer? | The deceased, as if written into the will | The beneficiary who gave up their share |
| Time limit | Two years from the date of death | Nine months for a qualified disclaimer under section 2518; no limit for a gift, which simply happens when signed |
| Can the person giving up the share choose the new recipient? | Yes, that is the point of a variation | Not for a qualified disclaimer; choosing the recipient makes it a gift |
| Return needed | Notify HMRC only if additional Inheritance Tax becomes payable | Form 709 if the gift exceeds the annual exclusion, or is of a future interest |
| Tax effect | Can reduce Inheritance Tax or Capital Gains Tax | Uses the donor's annual exclusion, then their basic exclusion |
| Income tax | Not read back; the person varying can be treated as a settlor | Grantor-trust rules may apply if the share goes into a trust |
There is one: a qualified disclaimer under Internal Revenue Code section 2518. It is narrower than a UK variation in four respects:
A UK disclaimer is also within section 142, so in the right facts a single document can be drafted to work in both systems: made early, before any benefit is taken, and with the property falling to the person the family wanted anyway under the will's default provisions. That needs the will read carefully before anything is signed. Once nine months have passed, or once the American has taken a distribution, the US route is closed and only the gift analysis is left.
If the redirected share is a gift, the Form 709 United States Gift (and Generation-Skipping Transfer) Tax Return is due by 15 April of the year after the gift, on the same timetable as the income tax return, including its extension.
Whether one is needed turns on the size and nature of the gift:
The year-end point is practical. The annual exclusion runs by calendar year, so a variation signed in late December and one signed in early January use different years' exclusions and fall on different returns. If the two-year UK window leaves room to choose, the date of signing is worth deciding deliberately.
UK variations frequently redirect assets into a discretionary trust for grandchildren. For Inheritance Tax, section 142 treats the deceased as the settlor. For US purposes, the American who gave up the share is the person who put the property into the trust. If that trust is a UK trust and has, or may have, US beneficiaries, the American can be treated as the grantor of a foreign trust. That brings annual reporting on Form 3520 and the trust's own Form 3520-A, with penalties for missed filings that are calculated on the value transferred, not on any tax due.
The UK does not fully follow the reading-back here either. For income tax, section 142 does not apply, and the person who made the variation can be treated as a settlor under the settlements rules. A US parent who varies a share into a trust for their own minor children can find the trust income taxed back on them in the UK as well.
The direction can also run the other way: a UK sibling varies their share in favour of an American niece or nephew. The UK treats the property as passing from the deceased. In the US, the American is receiving property from a foreign estate or a foreign person, which is not taxable income but can trigger Form 3520 reporting once it crosses the reporting threshold. Missing that form carries a penalty based on the amount received. Our guide to the Form 3520 trap on inheriting money from overseas covers that side in detail.
Where the deceased was themselves a US citizen, there is a further layer: the US estate tax return follows the will as written, not the variation. A UK variation that redirects to a surviving spouse does not by itself create a US marital deduction. The interaction between the two estate systems is covered in our guide to the US-UK estate and gift tax treaty.
We review proposed variations from the US side before they are signed, identify whether a qualified disclaimer is still available, and prepare the Form 709 and any trust reporting that follows. Our US-UK accountants work alongside your UK solicitor rather than replacing them. Every return is reviewed by our IRS Enrolled Agent, who is also ACCA-qualified, and you approve and sign it yourself. If an estate is still inside its two-year window, book a consultation before anyone signs.