Can You Invest in Alternative Investments Through an ISA?

Yes, some alternative investments can be held in an Individual Savings Account (ISA). Many cannot.

An ISA is a tax wrapper, not a category of investment. Income and capital gains arising inside it are free of UK tax, but the underlying holding still has to meet HMRC's qualifying investment rules. That distinction does most of the work in this area, because private equity, venture capital, property, private credit and crowdfunding all take very different legal forms.

The rules have also moved. From 6 April 2026, Long-Term Asset Funds (LTAFs) became qualifying investments for Stocks & Shares ISAs, widening the range of less-liquid assets available inside the wrapper. The useful question is not whether something is an alternative investment. It is: what exactly is this investment, how is it structured, and does that specific security qualify?

An ISA is a UK tax wrapper with an annual subscription limit of £20,000 for the 2026/27 tax year. There are four main types:

• Cash ISA
• Stocks & Shares ISA
• Innovative Finance ISA (IFISA)
• Lifetime ISA

Each type holds a different set of qualifying investments. For alternatives, the two that matter are the Stocks & Shares ISA and the IFISA.

The wrapper itself never determines whether a holding counts as an alternative investment. HMRC's qualifying investment rules determine what can go inside, and those rules are written around legal form: a share, a security, a fund unit, a loan. An investment can be thoroughly "alternative" in ordinary investment language and still be perfectly ISA eligible, provided its structure qualifies.

Shares in companies listed or admitted to trading on qualifying markets can potentially be held in a Stocks & Shares ISA. That includes smaller companies and companies traded on AIM, the London Stock Exchange's market for smaller and growing businesses, which HMRC's guidance addresses specifically.

Being associated with an AIM-quoted company does not make every related security eligible. Eligibility is assessed at the level of the individual security, not the company.

Investment trusts extend the same logic further into alternatives. A qualifying listed investment company can provide exposure to private equity, infrastructure, renewable energy, property, specialist credit or venture capital while its own shares trade on a recognised exchange.

The practical consequence is a distinction worth holding onto. An investor generally cannot place a direct stake in a private company inside a Stocks & Shares ISA. That same investor may be able to buy shares in a qualifying listed investment company which itself invests in private companies. The structure decides the outcome, not the underlying economic theme. Our guide to SIPP and ISA wrappers for private market exposure covers how this works in execution.

LTAFs are FCA-authorised funds designed to invest in longer-term, less-liquid assets, including private markets. They are the regulator's answer to the mismatch between daily-dealt fund structures and assets that cannot be sold daily.

From 6 April 2026, LTAFs became qualifying investments for Stocks & Shares ISAs. This matters because it connects the mainstream ISA market to professionally managed exposure to illiquid assets, without requiring a listed vehicle as the intermediary step.

LTAFs had previously been eligible for the Innovative Finance ISA. Existing LTAF holdings sitting in an IFISA immediately before 6 April 2026 received transitional treatment and are treated as Stocks & Shares ISA investments from that date, so no action was required from investors holding them.

Eligibility is not the same as availability. An ISA manager still has to offer the fund, support its dealing frequency and accept its redemption terms. For the mechanics of the structure itself, see LTAFs explained for UK retail investors.

The IFISA was created to bring certain alternative finance investments inside a tax wrapper. HMRC lists qualifying IFISA investments including:

• Peer-to-peer loans
• Crowdfunding debentures
• Certain alternative finance arrangements
• Certain less-liquid investments
• Cash
• UK cryptoasset exchange-traded notes (cETNs), subject to the relevant rules

This is where the debt side of the alternative finance market sits. A qualifying peer-to-peer loan may potentially be held through an IFISA. Buying shares in an unlisted private company through an equity crowdfunding platform does not mean those shares can be placed in an ISA of any kind.

The line between equity crowdfunding and debt crowdfunding is therefore not a technicality. It changes the wrapper available to you. Several lending platforms in our private debt directory and real estate directory offer an IFISA on qualifying loans; the crowdfunding and P2P guide explains the two structures side by side.

Not directly. You cannot buy a building and place the building inside an ISA.

An ISA can provide property exposure through qualifying investments, which can include listed property companies, REITs, property investment trusts, certain qualifying funds and certain less-liquid funds.

There is a useful connection with the IFISA rules here. HMRC states that certain investments which would normally qualify for a Stocks & Shares ISA, but cannot be readily liquidated within 30 days, can qualify for an IFISA subject to specific conditions. Open-ended property funds are HMRC's own example.

"Property investment" and "property held directly" are not interchangeable phrases when the question is ISA eligibility.

Buying shares directly in an ordinary unlisted private company is not the same as buying an ISA-eligible listed security, and it is one of the most consequential distinctions for anyone researching private markets.

An equity crowdfunding investment, an angel investment or a direct private-company stake should not be assumed to fit inside a Stocks & Shares ISA. In general terms, it does not.

Separate tax-advantaged schemes exist for some private-company investments, notably the Enterprise Investment Scheme (EIS) and the Seed Enterprise Investment Scheme (SEIS). They are a different regime with different rules, not an alternative route into an ISA.

EIS and SEIS provide tax incentives for qualifying investments in smaller and very early-stage companies. They sit outside the ISA framework entirely.

An investment being EIS or SEIS qualifying tells you nothing about whether it can be held in an ISA. The schemes have their own eligibility criteria, holding periods, relief mechanics and clawback conditions.

For research purposes it is cleaner to treat ISA, IFISA, EIS and SEIS as four separate structures rather than variations on a theme. Our complete EIS and SEIS guide covers the schemes in detail. This article does not assess whether any particular structure suits an individual investor.

The table below is a starting point for research, not a definitive eligibility test. Always check the specific investment and confirm with the ISA provider.

Physical luxury assets such as wine, whisky and art fall outside every ISA route. That is a structural feature of the regime rather than a comment on the assets themselves.

The common research error is to focus on the underlying asset and ignore the legal form holding it. Consider three investments that all provide exposure to private companies:

• A. You buy shares directly in a private company.
• B. You buy shares in a listed investment trust that invests in private companies.
• C. You invest in an LTAF that invests in private markets.

Economically, all three deliver some exposure to private companies. Legally they are three different instruments, with three different liquidity profiles, three different fee structures and three different ISA outcomes.

The same principle applies to property, private credit, infrastructure and every other alternative asset class. The wrapper and the structure matter as much as the asset.

None of this is a recommendation to prefer one structure. The appropriate choice depends on the investment itself, the investor's circumstances, liquidity requirements, tax position, risk tolerance and the rules of the relevant provider.

When you are looking at an alternative investment and wondering whether an ISA can hold it, work through these in order.

1. What exactly am I buying? A share, a bond or debenture, a fund, an investment trust, a loan, a property interest, a private-company share, or something else. The legal form is the first filter.

2. Is it listed, authorised or otherwise qualifying? Market listing, fund authorisation and regulatory status all feed into eligibility.

3. Which ISA would it sit in? Do not assume the Stocks & Shares ISA. Some qualifying alternatives fall under the IFISA rules instead.

4. Does this specific investment qualify? One ISA-eligible product from a platform or fund manager does not make the rest of their range eligible.

5. Can the ISA provider actually hold it? Legal eligibility and practical availability are different things. The ISA manager decides what it will custody and deal.

Unfamiliar terminology is worth resolving before you commit capital rather than after. The glossary defines the regulatory and structural vocabulary used across this site.

Alternative investments and ISAs are not mutually exclusive. Qualifying listed securities, investment trusts, REITs, LTAFs and certain alternative finance investments can all potentially sit inside an ISA.

Many direct alternatives cannot: direct stakes in private companies, physical assets and certain private funds simply do not qualify, whatever wrapper an investor would prefer to use.

The question that produces a reliable answer is not "is this an alternative investment?" It is "what exactly is this investment, how is it structured, and does this specific security qualify?" That framing matters more each year, as the UK's ISA framework widens to admit a broader range of less-liquid assets through regulated structures.

Can I put a private company investment into a Stocks & Shares ISA?
Generally, no. Direct shares in an ordinary unlisted private company are not qualifying investments for a Stocks & Shares ISA.

Can I invest in private equity through an ISA?
Potentially, but usually indirectly. A qualifying listed investment trust or an LTAF may provide exposure to private markets while itself being ISA eligible.

Can I invest in an LTAF through an ISA?
Yes. From 6 April 2026, LTAFs became qualifying investments for Stocks & Shares ISAs, subject to the relevant rules and to your ISA manager offering them.

Can crowdfunding investments be held in an ISA?
It depends on the type. Certain crowdfunding debentures and peer-to-peer loans can qualify for an IFISA, while direct equity crowdfunding investments in private companies generally do not qualify for any ISA.

Can I hold property in an ISA?
Not directly. Certain listed property investments, REITs and qualifying funds can potentially be held within one.

Can I put an EIS or SEIS investment into an ISA?
No. EIS and SEIS are separate tax-advantaged schemes. Qualifying for one does not make an investment ISA eligible.

Is this article tax advice?
No. It is general educational information about the UK ISA framework. ISA and tax rules change, and investors should consider the relevant HMRC guidance and, where appropriate, obtain professional advice.