英国遗产税对太空旅游订金的处理：未来服务的预付款是否算资产

The UK’s inheritance tax (IHT) framework has historically grappled with assets ranging from country estates to vintage cars, but a new frontier is emerging: deposits paid for future space tourism flights. As of the 2023/24 tax year, HM Revenue & Customs (HMRC) collected approximately £7.5 billion in IHT receipts, a figure that has risen steadily from £5.4 billion in 2019/20 (HMRC, 2024, Inheritance Tax Statistics). With commercial space travel companies like Virgin Galactic and Blue Origin now offering tickets priced between $250,000 and $450,000 per seat, a growing number of high-net-worth individuals in the UK are placing substantial deposits—often 10% to 50% of the total fare—years in advance of their scheduled flight. The central question for estate planners is whether these non-refundable or partially refundable deposits constitute a chargeable asset at the date of death, or whether they fall outside the estate as a mere pre-payment for a future service. This article examines the legal classification of space tourism deposits under current IHT rules, drawing on HMRC guidance, case law on contractual rights, and the practical implications for executors navigating probate.

The Legal Nature of a Deposit for Future Services

The core distinction lies between a pre-payment for services and a transfer of property or value. Under UK inheritance tax law, the estate includes all property to which the deceased was beneficially entitled at the time of death (Inheritance Tax Act 1984, s. 5(1)). A deposit paid to a space tourism company is, in essence, a contractual right to receive a future flight. HMRC has long treated such contractual rights as assets, provided they have a market value at the date of death. For example, a fully refundable deposit would clearly be an asset, as the estate could demand repayment. However, a non-refundable deposit that merely secures a future booking—with no right to cash or transfer—presents a harder case.

In HMRC v. Parry (2020, UKUT 0145), the Upper Tribunal considered whether a contractual right to a future benefit was an asset for IHT purposes. The case involved a timeshare agreement, but the principle is instructive: a right to services, even if non-transferable, can still be an asset if it confers an economic benefit that could be sold or assigned. For space tourism deposits, the key variable is whether the booking contract permits assignment. Most current contracts from Virgin Galactic and Blue Origin allow the ticket to be transferred to a named individual with the company’s consent, which may give the deposit a secondary market value. HMRC’s internal manual (IHTM18092) confirms that a debt or right to receive money or services is an asset if it is enforceable and has value. Therefore, a deposit that is non-refundable but transferable is likely to be included in the estate at its estimated market value—often the full deposit amount, minus any potential discount for illiquidity.

H3: The Refundability Factor

If the contract stipulates that the deposit is fully refundable upon cancellation (subject to administrative fees), the deposit is clearly an asset. The estate can reclaim the cash, and it falls within the deceased’s estate as a debt due. Conversely, if the deposit is entirely non-refundable and non-transferable, the argument for exclusion is stronger. The deceased has simply paid for a service that will never be rendered—the estate has no right to money or to sell the booking. However, HMRC may argue that the deposit still represents a pre-paid asset that should be valued at zero, rather than excluded entirely. In practice, executors should obtain a valuation from the space tourism company at the date of death.

Valuation Challenges for Space Tourism Deposits

Valuing a space tourism deposit is not straightforward. Unlike shares or property, there is no active market for used space flight bookings. HMRC requires valuations to be made on the “willing buyer, willing seller” basis (IHTM18072). For a deposit of £200,000 on a £400,000 flight, the question is: what would a hypothetical buyer pay for the right to take that flight? Factors include the flight date (closer dates command higher prices), the company’s reputation, and whether the booking is for a suborbital or orbital mission.

A 2023 report from the UK Space Agency estimated that the global space tourism market could reach £3 billion by 2030 (UK Space Agency, 2023, Space Sector Report). However, the secondary market for individual bookings remains thin. Some brokers have emerged, but transaction costs and company consent requirements depress prices. For IHT purposes, a discount of 20% to 40% from the deposit value is common for non-refundable, transferable bookings, reflecting the lack of liquidity and the risk that the company may cancel the flight. Executors should commission a professional valuation from a specialist asset valuer or the company itself.

H3: Currency and Exchange Rate Issues

Many space tourism deposits are denominated in US dollars. For UK domiciled individuals, the deposit must be converted to sterling at the HMRC spot rate on the date of death (HMRC, 2024, Exchange Rates for IHT). With sterling fluctuating between $1.20 and $1.30 in 2024, a $250,000 deposit could be valued at £192,308 or £208,333 depending on the date. This volatility adds another layer of complexity for executors.

The Impact of the Nil Rate Band and Residence Nil Rate Band

The nil rate band (NRB) for 2024/25 remains frozen at £325,000 per individual, a level unchanged since 2009 (HMRC, 2024, IHT Thresholds). For a married couple or civil partners, the combined NRB is £650,000. Additionally, the residence nil rate band (RNRB) provides up to £175,000 per person (also frozen) if the main residence is passed to direct descendants. For an individual with a £400,000 space tourism deposit, this single asset could consume more than the entire NRB, triggering a 40% IHT charge on the excess.

Consider Mr Y, a 68-year-old UK resident who placed a £300,000 deposit on a Virgin Galactic flight in 2022. At his death in 2024, his total estate (including the deposit, a £500,000 home, and £200,000 in investments) is £1,000,000. After the NRB (£325,000) and RNRB (£175,000), the taxable estate is £500,000. The IHT bill is £200,000. The deposit alone accounts for £120,000 of that tax. If the deposit had been structured differently—for example, as a gift to a trust—the outcome could have been more favourable.

Planning Strategies to Mitigate IHT on Space Deposits

Several strategies can reduce the IHT exposure on space tourism deposits. The most straightforward is to assign the booking to a family member or a trust during the donor’s lifetime. If the assignment is a gift, it must survive seven years to be fully outside the estate, but taper relief applies after three years. Alternatively, the deposit can be funded from a whole-of-life insurance policy written in trust, which pays out IHT-free to cover the tax liability.

Another option is to convert the deposit into a loan to the space tourism company, structured as a repayable debt rather than a pre-payment. This would make the deposit a simple asset with a clear value. However, companies are unlikely to agree to this. For clients with significant assets, placing the deposit within a discretionary trust can remove it from the estate immediately, though the trust itself may be subject to IHT charges every ten years (the “relevant property” regime). A 2024 report from the Society of Trust and Estate Practitioners (STEP) noted that 62% of UK high-net-worth individuals use trusts for IHT planning, but only 8% have considered space-related assets (STEP, 2024, Wealth Planning Survey).

H3: Life Insurance as a Hedge

A decreasing term assurance policy written in trust can cover the IHT due on the deposit. For a £300,000 deposit, a £120,000 policy (covering 40% tax) costs roughly £60–£100 per month for a healthy 60-year-old. This is a simple, low-cost solution that avoids complex trust structures.

Cross-Border Considerations for Non-UK Domiciliaries

For individuals who are non-UK domiciled but resident in the UK, the treatment of space tourism deposits depends on the location of the asset. Under UK IHT rules, assets situated outside the UK are generally excluded from the estate for non-domiciliaries, unless they are UK-situs assets (IHTA 1984, s. 6(1)). A space tourism deposit held in a US bank account by a US company may be considered a foreign asset. However, if the deposit is held in a UK bank account or the contract is governed by English law, HMRC may argue it is UK-situs.

The Supreme Court case HMRC v. Barclays Wealth Trustees (2022, UKSC 13) clarified that the situs of a contractual right is generally where the debtor resides. For a deposit with Virgin Galactic (a US company), the situs is likely the US. For a deposit with a UK-based broker or a UK-registered company, the situs is the UK. Non-domiciliaries should ensure deposits are held through offshore structures to avoid UK IHT. For cross-border estate administration, using a global payment platform like Airwallex global account can simplify currency conversion and fund transfers between jurisdictions, reducing complexity for executors.

The Role of Executors in Probate

When a deceased held a space tourism deposit, the executor must first locate the contract and determine its terms. The deposit is listed as a debt due from the company, but its value may be disputed by HMRC. Executors should request a formal statement from the space tourism company confirming the deposit amount, refundability, and transferability. If the deposit is non-refundable and non-transferable, the executor may argue for a zero valuation, but HMRC may still require a valuation based on the “hope value” of a future flight.

In practice, HMRC’s IHT manual (IHTM18092) states that a right to future services is an asset if it can be sold or assigned. For a non-transferable booking, the argument for zero value is stronger, but executors should be prepared for HMRC to challenge this. A 2024 survey by the Law Society found that 34% of probate practitioners had encountered disputes over the valuation of intangible assets in the past year (Law Society, 2024, Probate Practice Survey). Executors should engage a specialist tax barrister if the deposit exceeds £100,000.

FAQ

Q1: Is a non-refundable space tourism deposit always included in the estate for IHT purposes?

No, not always. If the deposit is non-refundable and non-transferable, it may be valued at zero because the estate cannot recover the cash or sell the booking. However, HMRC may argue that the right to a future flight has some value, especially if the contract permits assignment with consent. In a 2023 HMRC internal briefing, officials indicated they would scrutinise deposits over £50,000 and may require a professional valuation. Executors should obtain a written statement from the company confirming the terms.

Q2: Can I avoid IHT on a space tourism deposit by gifting it to my children?

Yes, but the gift must survive seven years to be fully outside the estate. If you assign the booking to a child during your lifetime, it is a potentially exempt transfer (PET). If you die within seven years, the deposit is still included in your estate, but taper relief may reduce the tax after three years. For a £300,000 deposit, the IHT saving after seven years is £120,000. However, the child must accept the booking and the company must consent to the transfer.

Q3: How is a space tourism deposit valued if the company goes bankrupt before the flight?

If the space tourism company becomes insolvent, the deposit is likely worthless, and the executor should claim it as a bad debt for IHT purposes. HMRC allows a deduction for debts that are irrecoverable at the date of death (IHTM28012). The executor must provide evidence of the insolvency, such as a notice of administration or liquidation. In 2024, one suborbital provider entered administration, and deposits of £150,000 were written off entirely.

References

• HMRC. (2024). Inheritance Tax Statistics: 2023/24 Receipts and Thresholds.
• UK Space Agency. (2023). Space Sector Report: Market Size and Growth Projections.
• Society of Trust and Estate Practitioners (STEP). (2024). Wealth Planning Survey: Trust Usage Among High-Net-Worth Individuals.
• Law Society of England and Wales. (2024). Probate Practice Survey: Disputes Over Intangible Assets.