Crypto in an ISA or SIPP? The UK access routes and how each is taxed

The four routes at a glance

All four of these give you exposure to the price of a cryptoasset. Only one of them is a cryptoasset for tax purposes. That distinction drives everything below. All positions as at 26 August 2026.

On FSCS, precisely. The Financial Services Compensation Scheme has never covered an investment losing value. It can pay out when an authorised UK firm fails owing you money or assets. For cETNs the FCA goes further and states there is no cover at all: "There won't be coverage from the Financial Services Compensation Scheme (FSCS)" (FCA, 8 October 2025). Direct cryptoassets bought on an exchange are outside the scheme entirely. If a platform's marketing implies otherwise, that marketing is wrong.

Read this before the tax detail

This page explains tax and wrapper mechanics. It is not a view on whether any of these instruments is worth owning, and nothing here is a recommendation. Three things belong at the top rather than the bottom, because they are the ones that actually determine outcomes:

• These instruments can fall much further than the asset they track. A cETN is an unsecured debt obligation of its issuer — if the issuer fails, you are a creditor, and the note can be worth less than the crypto backing it was meant to represent. A treasury company's share price can fall further than its own bitcoin holdings, because it carries debt, preferred dividends ranking ahead of the ordinary shares, and a market premium or discount to the value of its holdings that can compress independently of the crypto price. A tax wrapper changes none of this. It shelters gains; it does not create them.
• The FCA's own required warning is the honest summary. Firms selling cETNs to retail must display: "Don't invest unless you're prepared to lose all the money you invest. This is a high-risk investment and you should not expect to be protected if something goes wrong." (COBS 4.12A.11R.) That wording is the strongest of the several risk warnings the FCA prescribes for different product categories. It was written for this category on purpose.
• Wrapper eligibility is not a quality signal. HMRC deciding an instrument may sit in a particular ISA is a statutory-list decision, not an endorsement. The same instrument moved out of the mainstream ISA and into the niche one in a single statutory instrument, which is the opposite of a stamp of approval.

Can you hold crypto in an ISA in 2026/27?

Not the cryptoassets themselves. Bitcoin, ether and every other token are not qualifying investments for any ISA component, and never have been. There is no route by which you subscribe cash to an ISA and end up owning bitcoin directly inside it.

What changed is one step removed from that. A crypto exchange traded note — a listed debt security whose redemption value tracks a crypto price — became purchasable by UK retail investors on 8 October 2025, and for six months it was a qualifying investment for a stocks and shares ISA. Then The Individual Savings Account (Amendment) Regulations 2026, SI 2026/248, made on 9 March 2026 and in force 6 April 2026, took them out again. From 6 April 2026 a cETN is a qualifying investment for the Innovative Finance ISA only.

This is the single most misreported point in UK crypto coverage, including — until we corrected it — on one of our own pages. Two errors are common and both are wrong:

• "Crypto ETPs became ISA-eligible in October 2024." No. The FCA lifted the retail ban with effect from 8 October 2025, a year later. Before that, retail purchase was prohibited outright; between March 2024 and October 2025 the products were available on UK Recognised Investment Exchanges to professional investors only.
• "You can put a crypto ETN in your stocks and shares ISA." Not from 6 April 2026. If you already held one in a stocks and shares ISA immediately before that date it stays qualifying for as long as it remains in that account, but no new subscriptions, purchases or switches of cETNs into a stocks and shares ISA are permitted.

The same instrument moved Long-Term Asset Funds in the opposite direction — into stocks and shares ISAs and Junior ISAs, out of the Innovative Finance ISA — on the same date. If you read a 2025-dated guide describing the IFISA's qualifying list, it is out of date in both directions.

Junior ISAs: cETNs were removed from JISA eligibility on 6 April 2026 as well. Because a Junior ISA has only cash and stocks-and-shares components and no Innovative Finance component, the practical consequence is that a child cannot hold a cETN in any ISA wrapper at all. HMRC's stated reason for restricting cETNs to the IFISA was to make sure that qualifying investments for a Junior ISA are appropriate for the account. That last step — no surviving JISA route — is our reading of the ISA architecture rather than a sentence HMRC has published.

Crypto ETNs: the dates that actually matter

A cETN is a listed debt security with no coupon whose redemption value tracks the performance of a cryptoasset. HMRC's own ISA definition describes them as debt securities tracking unregulated cryptoasset performance, traded on UK exchanges, with no periodic coupon payments. That "debt security" characterisation is not decoration — it is what makes the issuer's solvency your problem, and it is what leaves the tax treatment outside a wrapper genuinely unsettled.

The regulatory history runs in four steps, and skipping any of them produces a wrong answer:

Which notes qualify. Retail access is conditional. The note must be on the FCA's Official List and admitted to trading on a UK Recognised Investment Exchange — in practice the London Stock Exchange or Cboe UK (FCA statement for firms). A cETN listed only on a European venue does not qualify by this route, and neither does a US-listed spot bitcoin ETF. The reason UK platforms do not offer US-domiciled bitcoin ETFs is separate and older: those funds do not publish a UK PRIIPs Key Information Document, which blocks all US-domiciled ETFs, crypto or not. The UK-listed note wrapper exists largely because of that gap.

A live example, dated. The iShares Bitcoin ETP began trading on the London Stock Exchange under ticker IB1T on 23 October 2025, physically backed with custody at Coinbase Custody International, with a stated total expense ratio of 0.25% waived to 0.15% until 31 December 2025 (LSE and iShares product page; reported launch dates vary between 20 and 23 October across sources, and we have not re-verified the fee level since that waiver expired). We name it as an illustration of what the segment contains, not as a suggestion to buy it.

Whether the IFISA route is real for you is a platform question. After 6 April 2026 an ISA manager needs both cETN permissions and HMRC approval to offer the Innovative Finance component, and for a period no UK platform held both — which meant the legislated route existed on paper and nowhere else. Stratiphy was reported on 22 April 2026 as the first UK platform to offer cETNs inside an IFISA, initially 21Shares products. That is press reporting rather than a regulator statement, and we have not verified how many platforms hold the combination now. Check with your own provider before assuming the route is open.

What does "Restricted Mass Market Investment" mean in practice?

cETNs are classified as Restricted Mass Market Investments, in the cryptoassets category at COBS 4.12A.11R(1)(d), alongside qualifying cryptoassets themselves. The Handbook uses the defined term "UK RIE cryptoasset exchange traded note". The label sounds administrative. What it means at the point of purchase is a sequence of frictions your platform must impose on you before it can take the order:

• A prescribed risk warning you cannot dismiss, in the wording quoted earlier.
• A 24-hour cooling-off period on the first direct-offer financial promotion you receive from that firm (COBS 4.12A.18R). It applies to the first promotion from that firm, not to every subsequent trade.
• An incentives ban (COBS 4.12A.7R). No refer-a-friend bonuses, no free tokens, no cashback to get you into the product.
• Client categorisation (COBS 4.12A.21R and 4.12A.22R). Most retail buyers categorise as a "restricted investor", which involves declaring that you will not put more than 10% of your net assets into restricted mass market investments in aggregate — not 10% into crypto specifically. Declarations lapse after 12 months. We have taken the 10% mechanic from COBS 4.12A rather than reading the declaration wording verbatim.
• An appropriateness assessment (COBS 4.12A.28R). If you fail it, the firm must wait 24 hours before re-testing you (COBS 4.12A.32R).

Treat these as information rather than as an obstacle course to be got through. The categorisation question in particular is the only point in the process where anyone asks you what proportion of your net assets is at stake, and the answer you give is meant to be true.

What did not change. The FCA's ban on retail access to cryptoasset derivatives remains in place. Crypto futures, options and CFDs are not available to UK retail clients, cannot sit in any wrapper, and are not a route this page can usefully cover. Offers you encounter for leveraged crypto trading are either aimed at professional clients, offered from outside the UK perimeter, or something worse. The wider FCA cryptoasset regime — policy statements PS26/9 to PS26/13, published 30 June 2026 — does not activate in full until 25 October 2027 (FCA regime overview). Until then, buying spot crypto on an exchange remains a largely unregulated activity with only anti-money-laundering registration and financial promotion rules applying.

Is a SIPP now the better crypto ETN wrapper?

On the rules alone, yes — and the reason is an asymmetry that is easy to miss. The pension route was opened on 8 October 2025 and has never been withdrawn. HMRC's policy paper of that date states that the government is allowing cETNs to be held within registered pension schemes from 8 October 2025. SI 2026/248 dealt only with ISAs. So from 6 April 2026 a registered pension is the more robust tax-wrapper route for a cETN than an ISA is, because it does not depend on finding a platform that holds both cETN permissions and Innovative Finance ISA manager approval.

Three qualifications, all of which can defeat the theory:

• Permission is not availability. HMRC allowing a scheme to hold something does not oblige any provider to list it. Whether your SIPP provider will actually let you buy a specific cETN is a provider-by-provider question, and many mainstream SIPPs restrict themselves to a curated universe.
• You are locking money away. A pension is not accessible until normal minimum pension age, which is rising to 57 from 6 April 2028. Putting a volatile, unregulated-underlying instrument into a wrapper you cannot open for decades is a decision with a different shape from buying it in a dealing account. See how a SIPP works before treating the wrapper as free.
• The pension's inheritance tax advantage is ending. From 6 April 2027 most unused pension funds and pension death benefits come within the estate for IHT, with personal representatives rather than scheme administrators liable for reporting and paying. A SIPP holding cETNs or treasury-company shares stops being an IHT-efficient wrapper for deaths on or after that date. We cover the reform in detail on our 2027 pension IHT page.

The one thing a pension wrapper does do cleanly is make the unresolved capital-versus-income question below irrelevant. Inside a registered pension, and inside an IFISA, growth is not taxed either way, so it does not matter which analysis is right.

Treasury-company shares are shares, not crypto

This is the point that unlocks the whole comparison, and it is almost always stated the wrong way round in consumer coverage.

Holding shares in a company that owns bitcoin is holding a share. It is taxed as a share, under the ordinary rules in the Taxation of Chargeable Gains Act 1992. HMRC's Cryptoassets Manual does not apply to it at all. The company owns the crypto; you own an equity claim on the company. Those are different assets with different tax regimes, and no amount of the company describing itself as a "bitcoin treasury" changes the analysis.

The best-known example is Strategy Inc, which trades on Nasdaq as MSTR. Note for anyone reading older UK articles: the company's legal name changed from MicroStrategy Incorporated to Strategy Inc effective 11 August 2025, with Nasdaq trading under the new name from the open on 12 August 2025; tickers and CUSIPs were unchanged (company press release of 14 August 2025 and the Form 8-K filed under CIK 1050446). We name it as the standard illustration of the category. We are not suggesting you buy it, and we have deliberately quoted no holdings figure, because an undated crypto-holdings number in this sector is worthless within weeks. Our explainer on how digital asset treasury companies work covers the corporate mechanics; this page covers only the UK tax and wrapper consequences of owning the shares.

Why it is ISA- and SIPP-eligible. Shares qualify for a stocks and shares ISA where they are officially listed on a recognised stock exchange. HMRC has recognised any exchange registered with the US Securities and Exchange Commission as a national securities exchange since 1970, under what is now section 1005 of the Income Tax Act 2007. Nasdaq and the NYSE are both on HMRC's recognised stock exchanges list. So US-listed treasury-company shares are ordinary ISA- and SIPP-qualifying shares, and this is the only one of the four routes that sits comfortably in a mainstream stocks and shares ISA today.

What the share-not-crypto distinction buys you, concretely:

• It can be fully sheltered in an ISA or a SIPP. Direct crypto cannot.
• It gets share reorganisation relief on rights issues, bonus issues and takeovers under TCGA 1992 s.127. A crypto-to-crypto swap is always a disposal.
• Its gains sit in the same section 104 holding as any other shares of that class you own, not in a bitcoin pool.
• There is no stamp duty or SDRT on buying US-incorporated shares — the 0.5% charge applies to UK-incorporated company shares. We flag this as our reading of the SDRT charging basis rather than a line we have read on a single HMRC page. Separately and clearly verified: HMRC states that exchange tokens would not be likely to meet the definition of stock or marketable securities or chargeable securities (CRYPTO24000), so there is no stamp duty on crypto transfers either.

And what it costs you. The same distinction hands you a set of equity risks the underlying crypto does not have, and this is where the promotional framing of the sector is at its most misleading. A treasury company that issues new shares above the market value of its holdings can buy more crypto per existing share — the flywheel that sector marketing describes endlessly. The reverse gear is described far less. If the share price falls to or below the value of the holdings, that issuance stops working, or becomes dilutive to existing holders. Preferred dividends rank ahead of the ordinary shares and must be paid whatever the crypto price does. Debt has to be serviced or refinanced. The premium the market puts on the holdings can compress on its own, so the shares can fall while the crypto price is flat. Anyone presenting the flywheel without the reverse gear is selling, not explaining.

Withholding tax, FX, and the preferred-share question

The US-share route carries three frictions that a UK-listed instrument does not.

US dividend withholding. Completing form W-8BEN reduces US withholding on US dividends from 30% to 15% for a UK investor in a dealing account or a stocks and shares ISA. The trap is what happens next: the 15% withheld inside an ISA is not recoverable, because there is no UK tax liability to set a foreign tax credit against. In a taxable dealing account the 15% is generally creditable against UK tax on the same income. W-8BEN forms typically expire after three calendar years plus the year of signing. A SIPP is treated differently again: under the UK/US treaty pension exemption a UK pension scheme can receive US dividends at 0% withholding with no individual W-8BEN required (HMRC's Double Taxation Relief Manual at DT19867A). The practical caveat matters: delivery depends on how your broker's nominee structure is documented with the US withholding agent, and a UK Shareholders' Association paper of November 2025 argues SIPP providers frequently fail to obtain the 0% rate. Do not assume it; ask. Our W-8BEN guide covers the form itself.

For MSTR specifically the withholding question is currently moot on the common stock, because it pays no dividend — as at 13 November 2025, on our reading of the company's own description of its capital structure. That is an inference from press releases rather than a line read off the latest 10-Q, and a company can start paying a common dividend at any time. Inside an ISA or SIPP the only sheltered outcome on a non-dividend-paying share is the capital gain.

FX. Every buy and sell converts sterling to dollars and back, and platforms charge a spread on that conversion, usually a percentage markup on the interbank rate that tiers down with trade size. It is a real and repeated cost that never appears in a headline performance figure. We are not quoting a rate for any named platform because they vary and change; check your own broker's published FX charge and multiply it by two for a round trip.

Are the preferred series realistically accessible to UK retail? As at November 2025 Strategy had five listed perpetual preferred series alongside the common stock: STRK (8.00% Series A, convertible, January 2025), STRF (10.00%, March 2025), STRD (10.00%, June 2025), STRC (variable rate, July 2025) and STRE (10.00% euro-denominated, €100 stated amount, priced 6 November 2025, settled 13 November 2025). We could not verify the complete current list as at 26 August 2026 — an EDGAR filing from June 2026 suggests at least one further offering after STRE that we could not identify, and the SEC's site blocked our research tooling. Do not rely on that list being complete today.

On eligibility, the mechanism is straightforward: preferred stock is equity, not a packaged product, so the PRIIPs disclosure barrier that keeps US-domiciled ETFs off UK platforms does not apply, and on the recognised-exchange test these should be ISA- and SIPP-eligible in the same way as the common stock. That is our reasoning from the ISA manager rules, not an HMRC ruling on US preferred stock — we found none. On availability, the honest answer is that we could not find any UK platform offering them. Searches of two large UK platforms returned nothing on these tickers; the only availability claims we found were on a promotional aggregator site and referred to EU brokers, and EU availability is not UK availability. Treat this as "ask your platform", not as a route that exists. One further unresolved point: whether the convertible series could be argued into the PRIIPs perimeter, which would create a disclosure barrier the non-convertible series do not face. We found no authority either way.

Direct cryptoassets: pooling, and the wrapper ban

Holding the tokens themselves — on an exchange, or in your own wallet — is the route with the heaviest compliance burden and the least shelter. If you are new to the terminology, start with what digital assets actually are.

No wrapper, in either direction. Cryptoassets are not qualifying investments for any ISA. And they cannot be used to make a tax-relievable pension contribution, because HMRC does not consider them currency or money: "HMRC does not consider cryptoassets to be currency or money, so they cannot be used to pay a tax relievable pension contribution to an RPS" (CRYPTO26000). If tokens are placed into a scheme without relief, they become part of the scheme and are subject to the registered pension scheme tax rules. Separately, because cryptoassets are intangible they are not tangible moveable property, so they do not automatically trigger the taxable property charge — but that is a technical observation, not permission, and in practice mainstream SIPP providers will not accept them.

Rates for 2026/27. The annual exempt amount is £3,000 for individuals and personal representatives and £1,500 for most trustees. Main rates are 18% where the gain falls within the basic rate band and 24% above it; trustees and personal representatives pay 24%; Business Asset Disposal Relief and Investors' Relief are 18% (HMRC, last updated 13 April 2026). Residential property rates were aligned with the main rates from 30 October 2024, so there is no separate 28% band to worry about.

Matching and pooling. Disposals are matched in a fixed order: same-day acquisitions first (TCGA92 s.105), then acquisitions in the 30 days following the disposal (s.106A), then the section 104 pool (s.104(3)(ii)). Each token type needs its own pool. A widely repeated error is worth naming: several popular guides state a 10-day rule for individuals. That is wrong — the previous-nine-days rule is the company rule, and it runs backwards, not forwards. Our crypto CGT page works through the arithmetic, and the crypto tax calculator does it for a single disposal.

How crypto pooling differs from share pooling. The rules look similar and behave differently:

• Shares pool because they are shares of the same class in the same company. Crypto pools under the residual limb at s.104(3)(ii), covering assets dealt in without identifying the particular assets disposed of (CRYPTO22200).
• A crypto pool spans every wallet and exchange you beneficially own. There is no per-broker pool, which is exactly the opposite of how most people keep their records.
• NFTs are separately identifiable, so they are not pooled and the matching rules do not apply to them.
• Crypto-to-crypto swaps are disposals. Share reorganisations are not.
• Every figure has to be converted to sterling at the transaction date, which is a valuation burden shares simply do not carry.

What counts as a disposal (CRYPTO22100): selling for money; exchanging for a different type of token; using tokens to pay for goods or services; giving tokens away other than to a spouse or civil partner. Not disposals: moving tokens between addresses you beneficially control; using a mixer where you receive the same type of token back; gifts to a spouse or civil partner. Charitable donations do not attract CGT. The organising principle is whether beneficial ownership changes.

Allowable costs (CRYPTO22150): the sterling consideration paid, on-chain transaction fees, exchange fees on acquisition and disposal, professional costs of drawing up a contract, and costs of making a valuation. Mining equipment and electricity are not allowable CGT costs, even though they may be deductible against mining income. Costs already deducted against Income Tax profits cannot be deducted again.

Location. The situs of an exchange token follows the residency of the beneficial owner (CRYPTO22600). A UK resident cannot make their bitcoin non-UK situs by moving it to an offshore exchange or wallet.

Income versus capital: staking, lending, mining, airdrops

Capital Gains Tax is only half the picture. Several common crypto activities produce income first, and then a capital gain later on the same tokens. We cover each in depth elsewhere; the summary here is to tell you which regime you are in.

• Mining (CRYPTO21150): trade receipts if it amounts to a trade, otherwise miscellaneous income at the sterling value at receipt. That value becomes the base cost for a later CGT disposal, so the same tokens are taxed twice over — income on receipt, CGT on the movement afterwards.
• Staking (CRYPTO21200): the same trade-versus-miscellaneous-income test. The trap is loss relief. Miscellaneous income losses can generally only be set against other miscellaneous income, so someone taxed on rewards received at a high token price who then watches the token collapse has a tax bill and a loss that will not offset it. Our staking tax page works through the classification.
• Airdrops (CRYPTO21250): not income tax if received in a personal capacity without doing anything in return and outside a crypto trade; income if provided in return for, or in expectation of, a service. Note the sting in the tail — a token received tax-free typically has a nil or minimal base cost, so nearly the whole of the eventual proceeds is a chargeable gain.
• DeFi lending and staking (CRYPTO61130): HMRC's position is that the return may be revenue or capital depending on the platform's terms — "There is no single operating model for DeFi lending platforms" — and that transferring tokens into a DeFi arrangement can itself be a disposal. The practical hazard is a dry tax charge: a deposit that triggers a chargeable gain with no cash to pay it. See our DeFi tax page.
• Trading (CRYPTO20250): HMRC expects individual activity to amount to a financial trade "only in exceptional circumstances" — requiring frequency, organisation and sophistication similar to a trade in shares or securities. Calling yourself a trader is irrelevant; it is a question of fact, and if it is a trade, Income Tax takes priority over CGT. Our trader versus investor page sets out the badges.

Two announced changes for April 2027, neither yet law as at 26 August 2026. A policy paper of 13 July 2026 would apply no-gain/no-loss treatment to single-cryptoasset lending and borrowing and to automated market making arrangements, deferring CGT until an economic disposal. A second would give eligible stablecoins near-money treatment: a full CGT exemption for individuals and interest-like returns taxed as interest. Both are to be legislated in Finance Bill 2026-27. Do not plan around either until it is enacted.

Reporting: Self Assessment, the real-time service, and CARF

Self Assessment. Returns have carried a dedicated cryptoasset section since the 2024/25 tax year, and gains go in in pounds sterling on form SA108. That box is not just admin — it is the field HMRC can cross-match against exchange data.

The real-time service. If you are not otherwise in Self Assessment you can use HMRC's real-time Capital Gains Tax service: report by 31 December in the tax year after you made your gain and pay by 31 January. It is UK residents only, cannot be used on behalf of a client, trust or estate, and cannot be used for UK residential property gains. If you are already registered for Self Assessment you must still file the return.

The £50,000 proceeds trap. The CGT reporting proceeds limit is fixed at £50,000 — the point above which disposals must be reported even if no gain arises. Someone churning positions can cross £50,000 of gross disposal proceeds while making almost no profit, and still has a reporting obligation. We could not read the current SA108 notes verbatim, so confirm the exact trigger wording against the notes for your year.

The Cryptoasset Reporting Framework. CARF commenced in the UK on 1 January 2026: UK reporting cryptoasset service providers have been required to carry out due diligence on their customers from that date (CRYPTO49000). The first reports are due between 1 January and 31 May 2027, covering calendar year 2026, and annually by 31 May thereafter.

What they report on you as an individual: name, date of birth, home address, country of residence, and your National Insurance number or Unique Taxpayer Reference. For each transaction: value, type of cryptoasset, type of transaction, and number of units. The UK went further than the international minimum with a domestic extension, so UK providers report on UK-resident users to HMRC and not only on non-UK users — meaning HMRC expects to hold CARF data on UK taxpayers using both UK-based and non-UK-based providers. The obligation sits on the provider, not on you; you need take no action, but you should assume your exchange activity is visible and matched against that Self Assessment box.

One point of frequent confusion: crypto is not caught by the digital platform reporting rules that cover eBay, Vinted and Airbnb sellers. Those are a separate regime for the sharing economy and sale of goods. CARF is the crypto vehicle, and it starts reporting in 2027. A commonly quoted £300 penalty on a user who gives inaccurate information to their provider appears widely in commentary but we could not find it on the gov.uk CARF guidance — treat it as unverified.

Record keeping. HMRC expects separate records per pool: token type, date of disposal, quantity disposed and remaining, sterling value, bank statements, and pooled costs before and after each disposal. Exchanges may not retain records long enough, and the burden sits on you, not on them.

Inheritance tax, and the keys-on-death problem

Cryptoassets are estate assets "in much the same way as other assets, such as bank accounts, property, shares, and investments", and the date-of-death value must be given on the IHT return (CRYPTO25000). Holding something inside an ISA does not help: an ISA is not an inheritance tax shelter. The nil-rate band of £325,000, the residence nil-rate band of £175,000 and the £2m taper threshold are fixed to the end of 2030/31.

Two mechanisms here are sharper than most coverage admits, and both cut the same way.

There is no loss on sale relief for cryptoassets. HMRC states it plainly: "Unlike property and shares, cryptoassets do not qualify for loss on sale relief." Quoted shares sold within 12 months of death can be substituted at the lower sale value under IHTA 1984 ss.178–179; land gets a four-year equivalent under s.191. Crypto gets neither. So if someone dies holding a large crypto position and the price collapses before the executors can sell, the estate pays 40% on the higher date-of-death value with no relief. Given how far this asset class moves in a quarter, that is a material and one-sided risk. It is also a reason the share route and the crypto route are not interchangeable even when they track the same thing: shares in a treasury company would qualify for loss on sale relief on the ordinary terms for quoted shares.

Keys on death. Personal representatives who cannot access a holding must still report it, and HMRC expects them to give "an explanation as to why they are inaccessible and what the value is believed to be" in the IHT400. The mechanism that makes this bite is timing: inheritance tax is generally payable before the grant of probate, so an estate can owe 40% on an asset the executors can neither sell nor reach. Separately, misplacing a key is not a disposal for CGT purposes, because the key and the tokens still exist (CRYPTO22400). The only route to a loss is a negligible value claim under TCGA92 s.24(2), where there is no prospect of recovering the private key or accessing the tokens.

The practical implication is administrative rather than clever: whoever will administer your estate needs to know that the holding exists and how it can be reached, through a properly drafted arrangement rather than a note in a drawer. This is one of the few places where the direct route imposes a real cost that a wrapper-held instrument does not — a cETN in an IFISA or shares in a SIPP appear on a statement your executors can find.

And note the direction of travel on pensions: from 6 April 2027 most unused pension funds and pension death benefits fall within the estate for IHT, with personal representatives liable for reporting and paying. HMRC estimates around 10,500 estates newly liable and around 38,500 paying more in 2027/28.

The same £10,000 of exposure, by each route

A like-for-like comparison, to make the wrapper consequences concrete. Assumptions: a UK higher-rate taxpayer; £10,000 invested in 2026/27; the position later sold for £16,000, a £6,000 gain; the £3,000 annual exempt amount is fully available and unused elsewhere; the underlying crypto price movement is identical in every row. This is arithmetic on assumptions, not a forecast — the £16,000 is a placeholder to make the tax visible, and the same instruments can and do produce losses.

Read the table for its shape rather than its numbers. Three of the six rows show £0, and none of that £0 is a reason to take the exposure — the wrapper only ever changes what happens to a gain that occurs. The row that should give most pause is the third: it is the only one where the tax answer itself is unknown.

What is still unsettled

Publishing what we do not know is part of the job. As at 26 August 2026:

• Are cETN gains outside a wrapper capital or income? HMRC's 8 October 2025 policy paper is silent on it. Because a cETN is legally a debt security with no coupon whose redemption tracks a crypto price, two questions arise that no public guidance resolves: whether the deeply discounted securities rules in ITTOIA 2005 Part 4 Chapter 8 could tax the profit as income, and whether a particular vehicle could be an offshore fund, in which case a non-reporting fund gain would be an offshore income gain at income tax rates. Commentators assume CGT applies because the note is a capital asset. That is commentary, not authority, and it is issuer-and-structure specific. Inside an IFISA or a pension the question is moot; outside a wrapper it is not, and it is worth professional advice before a large disposal.
• Which UK platforms actually hold both cETN permissions and IFISA manager approval? This determines whether the IFISA route is real or theoretical for most people, and we could not establish the current answer.
• Will UK SIPP providers actually deliver the 0% US withholding rate? The treaty position is clear; the operational delivery depends on nominee structures and is contested.
• Could authorised funds be allowed to hold cETNs? The FCA consulted in June 2026 on permitting authorised funds to hold cETNs up to 10% of scheme property, with the consultation closing 13 July 2026. If made, that would create an indirect route into ordinary stocks and shares ISAs via mainstream funds. The outcome is unknown and this is not settled law.
• Will the April 2027 no-gain/no-loss rules have retrospective effect? The consultation response said the government was still assessing it.

Sources and methodology

Regulatory positions come from the FCA: PS20/10 for the January 2021 ban, the 8 October 2025 press release and the statement for firms for the retail opening and its conditions, and COBS 4.12A for the Restricted Mass Market Investment rules. The ISA change is in SI 2026/248, made 9 March 2026 and in force 6 April 2026. Tax treatment comes from HMRC's Cryptoassets Manual and from HMRC's rates and allowances guidance, last updated 13 April 2026. Recognised stock exchange status rests on ITA 2007 s.1005 and HMRC's recognised stock exchanges list.

Where we have relied on something weaker than a primary source, we have said so in the text: the SDRT position on US-incorporated shares is our inference; the Junior ISA dead-end is our reading of the ISA architecture; the current list of Strategy's listed preferred series could not be confirmed for August 2026; and the availability of any of these instruments on any named UK platform is unverified throughout. This page is educational and is not personal financial, tax or investment advice. Our methodology page documents how we source and check figures.

Related crypto and wrapper guides

• The complete UK ISA guide for 2026/27 — what each component can hold
• Complete UK Capital Gains Tax guide
• HMRC crypto nudge letters and how to respond
• NFT tax: buying, selling and royalties
• CGT versus IHT
• Choosing a SIPP platform

Educational only. Nothing on this page is a recommendation to buy, hold or sell any instrument, token or company, and the figures are illustrative for 2026/27. If a decision turns on the capital-versus-income question for a cETN, or on whether a specific security qualifies for your wrapper, take advice on your own facts.