The headline “crypto in an ISA” became widely reported after the FCA changed its rules in late 2025. What most articles do not make clear is how narrow and specific that change actually is. This page sets out precisely what is now possible, what the tax treatment is, and what it does not cover.
The short answer: you cannot hold crypto directly in an ISA, but FCA-approved crypto ETNs can go in one
You cannot place Bitcoin, Ether, or any other cryptoasset directly into any ISA wrapper. That rule has not changed. What changed on 8 October 2025 is that the FCA lifted its ban on selling crypto Exchange Traded Notes (cETNs) to retail investors. These products, which are debt securities that track cryptoasset prices, can be held inside an ISA, where gains are sheltered from Capital Gains Tax. The eligibility is narrow, the products are specific, and the planning value is real but limited to what sits inside the wrapper.
The FCA opened retail access to cETNs on 8 October 2025 (as at 2026-07-15, per FCA press releases “FCA opens retail access to crypto ETNs” and “FCA to lift ban on crypto exchange traded notes”, fca.org.uk). Before that date, these products were available to professional investors only. The ISA eligibility followed from a separate HMRC and HM Treasury process: the government's published policy on the tax treatment of cryptoasset Exchange Traded Notes confirmed that approved cETNs can qualify for ISA wrappers.
What a crypto ETN actually is, and why the distinction matters
A crypto Exchange Traded Note is a debt security. An issuing institution (typically a large financial firm) creates the note; its value is linked to the price performance of an underlying cryptoasset, such as Bitcoin or Ether. You are not buying or holding the cryptocurrency itself. You hold a note whose return tracks it.
This is not the same as a crypto ETF. An Exchange Traded Fund is a pooled investment vehicle that holds underlying assets; a cETN is a debt obligation of the issuer. The structural and legal difference matters because it is the reason the ISA rules can accommodate a cETN when they cannot accommodate a direct coin holding. HMRC's ISA eligibility framework classifies the note as a qualifying investment; the coin itself does not qualify.
The practical consequence is straightforward: if you hold a cETN inside an ISA, and the note's value rises because the tracked cryptoasset rose in price, the gain on the note is sheltered by the ISA wrapper. If you hold Bitcoin directly in a wallet or on an exchange, there is no ISA treatment available, and any gain falls within CGT in the normal way.
A cETN is also a high-risk financial product, and the FCA's retail permission comes with requirements on how the product must be presented. This page addresses only the tax treatment. It does not constitute investment advice, and we do not recommend buying or selling any particular product.
Which ISA it sits in, and the 6 April 2026 change
The ISA category for cETNs has already shifted once, and understanding the timeline matters if you or an ISA manager made decisions before and after 6 April 2026.
| Date | Position |
|---|---|
| 8 October 2025 | FCA lifts retail ban on cETNs. Eligible cETNs can be held in a Stocks and Shares ISA (where the ISA manager offers them). |
| Before 6 April 2026 | cETNs held in a Stocks and Shares ISA are within the ISA wrapper and gains are outside CGT. |
| From 6 April 2026 | cETNs are reclassified as qualifying investments within the Innovative Finance ISA (IFISA), per the Individual Savings Account (Amendment) Regulations 2026. cETNs held in an ISA account before 6 April 2026 may remain. ISA managers need HMRC approval to offer the Innovative Finance component. |
The practical upshot is that access to cETNs inside an ISA depends on whether your ISA manager offers the product and, from April 2026, whether that manager has HMRC approval for the Innovative Finance ISA. Not every platform will. The government has indicated it will keep the future position on Stocks and Shares ISA inclusion under review. The facts above are stated as at 2026-07-15, based on the government's published policy; check gov.uk ISA guidance and your ISA manager for the current position.
The tax effect: cETN inside an ISA versus direct crypto
The contrast is straightforward and is the reason the topic matters from a tax-planning perspective.
| Direct cryptoasset | FCA-approved cETN inside an ISA | |
|---|---|---|
| ISA-eligible? | No | Yes (via ISA manager offering the product) |
| Gains within CGT? | Yes | No (ISA wrapper shelters gains) |
| What it is | The coin or token itself | A debt security tracking a cryptoasset price |
| CGT rate on gains (if taxable) | 18% within the basic-rate band, 24% above; higher and additional-rate taxpayers pay 24% on the whole gain | Not applicable inside the ISA wrapper |
| Annual exempt amount available? | Yes (£3,000 for 2026/27, per gov.uk) | Not needed inside the ISA wrapper |
| Key caveat | Every disposal (including crypto-to-crypto swaps) is a CGT event | High-risk product; ISA treatment applies to the note, not to the underlying coin |
For a directly-held cryptoasset, gains above the £3,000 annual exempt amount are taxable. The rate is 18% on the portion of the gain that fits within the taxpayer's remaining basic-rate income tax band (the ceiling for 2026/27 is £37,700 of taxable income), and 24% on any gain above that boundary. Higher and additional-rate taxpayers pay 24% on the whole gain. There is no flat 18% rate; the band split applies.
Inside an ISA, those rate calculations do not arise. The ISA wrapper shelters the gain entirely. That is the legitimate planning value of the cETN-in-ISA structure, for the portion of an investor's crypto exposure that can be taken on via a note product through a participating ISA manager.
If you want to use our crypto CGT estimator to model the tax that an ISA wrapper would shelter on a given gain, the tool will give you a scenario figure. It states its own simplifications and ends with a prompt to speak to us for a position that accounts for your full picture, including the same-day and 30-day matching rules that a stateless web tool cannot handle.
What this does not do
Several things the cETN/ISA development does not change are worth stating plainly, because the “crypto ISA” coverage has sometimes implied more than is accurate.
- Your existing directly-held coins are not sheltered. An ISA wrapper applies prospectively to what you put inside it. There is no mechanism to retrospectively move existing coin holdings into an ISA, and no mechanism to make gains already realised on direct coin disposals disappear.
- The wrapper covers only the note product, not the underlying coin. If you hold a Bitcoin-tracking cETN inside an ISA, you are not holding Bitcoin. You hold a note. The economic exposure tracks Bitcoin's price, but the legal and tax treatment is that of the note within the ISA wrapper.
- Other CGT planning levers operate independently. Spouse and civil partner transfers, capital loss claims within the claim window, and negligible value claims for worthless tokens are separate legitimate planning tools that apply to your directly-held crypto. They are covered on our crypto CGT planning page and are not affected by whether you also hold cETNs in an ISA.
- This is a tax analysis, not a product recommendation. Whether a cETN is a suitable investment for any individual is a regulated-advice question that sits outside the scope of this page and outside the scope of tax compliance work.
Getting the tax treatment right and reviewing your position
The cETN/ISA development introduces a genuinely new variable into the picture for investors who hold crypto, are attracted by the ISA shelter, and want to understand how it interacts with their existing directly-held positions, their CGT position for the current year, and their reporting obligations.
The questions that typically need untangling are: how large is the gain position on directly-held coins, what is the efficient use of this year's annual exempt amount and available losses, does a cETN wrapper make sense for new exposure, and is the Self Assessment picture clean given that CARF data collection covering the 2026 calendar year began on 1 January 2026. Our CARF explainer covers the reporting timeline in detail.
If you hold crypto, have been following the “crypto ISA” coverage, and want to understand what is actually optimal for your tax position, the right starting point is a review of your current CGT exposure. Visit our investor tax hub for an overview of how direct crypto gains are treated, or go directly to our crypto CGT planning page to understand the full set of legitimate levers available to you before the tax year closes.