A UK estate freeze argues the growth shares are worth almost nothing. Section 2701 values the founder's retained shares at zero instead, and measures the gift as the whole company.
A freezer share structure caps the senior generation's shares at today's value and sends future growth to the next generation. For a US person, Internal Revenue Code section 2701 can value the retained shares at zero, so the gift of the growth shares is measured as almost the whole company.
Estate freezing is orthodox UK planning. A trading company or family investment company is reorganised so that the founder's shares carry a fixed entitlement and no participation in future growth, and a new class of growth shares is issued to the children. Everything the business earns from that point accrues outside the founder's estate. It is sensible, it is widely used, and it is one of the few UK techniques that is almost perfectly inverted by US law. If the founder, the children, or in some structures a trust, is a US person, the arrangement runs into a statute enacted specifically to stop it, and the resulting gift can be an order of magnitude larger than anyone modelled.
The mechanism varies but the shape is constant. The founder's ordinary shares are converted into, or exchanged for, a class with a fixed dividend and a fixed capital entitlement on a winding up, frozen at the company's current value. A new class, usually called growth shares, is issued to the children or to a trust for them. Those shares participate only in value above a hurdle set at or near the frozen figure, so they are argued to be worth very little on the day they are issued.
The UK driver is inheritance tax. If the growth shares are worth almost nothing at issue, almost nothing has been given away, so there is almost no transfer of value and almost no seven-year exposure, yet all the future growth sits in the children's hands from day one. Where the company qualifies, business relief can reduce the chargeable value of the retained shares as well (gov.uk: Business Relief for Inheritance Tax), though an investment-holding company will not qualify and families frequently assume otherwise.
Because Congress saw the same technique and legislated against it specifically. The old American approach, estate freezing through preferred stock recapitalisations, let families transfer growth to children while claiming the retained preferred shares were worth nearly the whole company. Chapter 14 of the Internal Revenue Code, sections 2701 to 2704, exists to stop that by changing how the retained interest is valued rather than by attacking the structure itself. Nothing about a freezer share scheme is abusive in British terms. It simply happens to be the exact arrangement section 2701 was drafted to catch.
Section 2701 applies where an individual transfers an equity interest in a corporation or partnership to, or for the benefit of, a member of their family, and immediately afterwards the transferor or an applicable family member holds an applicable retained interest. Family means the spouse, descendants of the individual or their spouse, and the spouses of those descendants. Issuing growth shares to children while the founder keeps the frozen class is the textbook case.
An applicable retained interest is either a distribution right in an entity the family controls, or an extraordinary payment right such as a put, call, conversion or liquidation participation right. A fixed-dividend preference share held by a controlling founder is a distribution right.
The consequence is the valuation rule. The applicable retained interest is valued at zero unless it is a qualified payment right. The gift is then computed by the subtraction method: take the value of all the family-held interests in the company, subtract the value of the senior equity interests as determined under section 2701, and the remainder is the value of what was transferred. Subtracting zero from the whole leaves the whole. A founder who believed they were giving away shares worth a nominal sum can find they have made a gift measured by substantially the entire equity value of the company, against an annual gift tax exclusion of $19,000 per donee and a lifetime basic exclusion amount of $15,000,000 for 2026 (IRS: What's New, Estate and Gift Tax).
There is also a floor on the value of the transferred junior equity, expressed as a minimum proportion of the company's total equity and debt, so the growth shares cannot be valued at a nominal amount even where the hurdle genuinely makes them near-worthless in commercial terms. Confirm the current statutory proportion rather than working from memory, because the planning either survives it or does not.
Critically, section 2701 treats a capital contribution, redemption, recapitalisation or other change in the entity's capital structure as a transfer. The UK reorganisation that creates the two classes is itself the event. Advisers who conclude that no shares changed hands and therefore no gift arose have missed the point of the provision.
The escape route is to make the retained interest a qualified payment right: a dividend payable on a periodic basis at a fixed rate on cumulative preferred stock, or a comparable guaranteed payment in a partnership. If the retained shares qualify, they are valued on ordinary principles rather than at zero, and the subtraction method produces a sensible answer.
The cost is that the dividend has to be real. Qualified payments must actually be made, and amounts not paid within the statutory grace period accrue, with compounding, and are brought into charge on a later transfer of the interest or on death. A founder who elects and then leaves the dividend unpaid for a decade because the company needed the cash has built a growing deferred gift or estate inclusion. For a business that reinvests rather than distributes, that is a commercial constraint rather than a paperwork one. And paying a real cumulative dividend to a UK founder creates annual UK income tax for them while taking cash out of the company, so the US solution imposes a UK cost. That is the recurring pattern in this area.
Section 2704 does two things. A lapse of a voting or liquidation right held by an individual, where the family controls the entity before and after, is treated as a transfer. And applicable restrictions on the ability to liquidate the entity are disregarded in valuing a transferred interest where the restriction can be removed by the family.
That matters because UK structures depend heavily on drafting. Articles and shareholders' agreements that restrict transfer, remove voting rights from growth shares or prevent a winding up are exactly the features an appraiser would cite to support a discount. If the family can remove them, the US valuation proceeds as though they were not there. Discounts for lack of control and marketability are not abolished, but the ones manufactured by the family's own documents are vulnerable.
Three charges that have nothing to do with gift tax.
Employment-related securities. Growth shares are usually issued to children who are directors or employees, which makes them employment-related securities. Acquiring shares for less than their unrestricted market value produces an income tax charge on the discount, and where the shares are restricted securities the restricted securities regime applies (HMRC Employment Related Securities Manual, ERSM30310). A section 431 election, made jointly within the statutory window, brings the charge forward onto the unrestricted value so that future growth falls into capital gains rather than income (ERSM30450). Missing that window is one of the most expensive and most common failures in growth share schemes, and it is irreversible.
Value shifting. Rearranging rights between share classes can shift value without a disposal, and the capital gains value-shifting provisions exist to tax that (HMRC Capital Gains Manual, CG58850).
Related property and inheritance tax. To the extent value passes out of the founder's estate, there is a transfer of value, potentially exempt but measured against the nil rate band of £325,000 and a residence nil rate band of £175,000 where the conditions are met, tapering by £1 of band for every £2 of estate above £2m. Shares held by a spouse are valued together with the founder's under the related property rules, which can defeat an attempt to fragment a holding into discountable parcels (HMRC Inheritance Tax Manual, IHTM09731).
A freeze is designed to keep growth out of the estate. For a US person that is also its biggest cost. Shares acquired by gift carry over the donor's basis, so when the children eventually sell they pay US capital gains tax on the whole appreciation from the founder's original cost. Shares held until death receive a basis adjustment instead, wiping out the gain for US purposes, and the UK gives a comparable uplift to probate value.
So the arithmetic is not "estate tax saved" against "nothing". It is the estate tax saved against the capital gains tax created, on a company that by assumption will grow a great deal. For a founder comfortably inside the US basic exclusion amount but heavily exposed to UK inheritance tax, the right answer is often a structure that freezes for UK purposes without being a completed gift for US purposes, which is a different design brief from the one a UK-only adviser would write.
The gift has to be valued and reported. The IRS expects a properly reasoned valuation of a closely held company, and its examiners work to published business valuation guidelines (IRS, Internal Revenue Manual 4.48.4). A UK accountant's informal note on the hurdle value will not carry the weight.
Disclosure matters at least as much. Adequate disclosure of a gift on a Form 709 starts the three-year limitation period on the valuation; without it the IRS can revalue the gift indefinitely, including decades later when the founder dies and the company is worth many multiples of the reported figure (IRS: Instructions for Form 709). Families who decided the growth shares were worth nothing and therefore filed nothing have left the valuation permanently open.
Putting US-person children into the share register changes the company's US character. A UK company majority-owned by US shareholders is a controlled foreign corporation, which brings Subpart F and the global intangible low-taxed income rules into play and puts every US shareholder into the annual reporting regime. Our guide to Form 5471 filing categories explains which applies, the Form 5471 service page covers the filing, and Subpart F and GILTI for small foreign company owners sets out which regime catches what. If the company is an investment vehicle rather than a trading business, a minority US holder is usually looking at the passive foreign investment company rules instead, which we cover in the family investment company for US persons.
This is one of the places where a structure that is entirely conventional on one side of the Atlantic is close to the worst available answer on the other, and the damage is done at implementation rather than discovered gradually. Every position we take is reviewed and signed off by a licensed professional, an IRS Enrolled Agent who is also an ACCA-qualified accountant, so the UK reorganisation and the US gift tax return are built from one analysis.
If a family company reorganisation is being discussed, our US and UK private client tax service is the right starting point, with the broader position covered by our US-UK tax specialists. Book a confidential consultation or scope the work before the articles are amended, and read US estate and gift tax for Americans in the UK and UK business property relief for US citizens alongside this.