Stocks and Shares ISA UK 2026: What You Can and Cannot Hold

A Stocks and Shares ISA is one of the most flexible and tax-efficient investment wrappers available to UK investors. You can invest up to GBP 20,000 per tax year (the 2026/27 ISA allowance), and all growth, income, and dividends within the wrapper are free of Income Tax and Capital Gains Tax -- now and when you withdraw. But not everything can be held inside a Stocks and Shares ISA. The rules on qualifying investments are more specific than many investors realise.

What You CAN Hold in a Stocks and Shares ISA

UK and international equities. Shares listed on a recognised stock exchange anywhere in the world can be held. This includes shares on the London Stock Exchange (including AIM-listed shares), New York Stock Exchange, NASDAQ, Euronext, Tokyo Stock Exchange, and hundreds of other recognised exchanges. The key qualifier is that the exchange must be "recognised" by HMRC -- which covers virtually all major global markets.

Unit trusts and OEICs (Open-Ended Investment Companies). UK-authorised collective investment schemes are qualifying investments. This covers the vast majority of mutual funds offered by asset managers such as Vanguard, Fidelity, abrdn, and others. These pool your money with other investors into a diversified portfolio managed by a professional fund manager.

Investment trusts. Closed-ended investment companies listed on the London Stock Exchange -- including popular names in infrastructure, private equity, and property -- are qualifying ISA investments. Investment trusts have a fixed number of shares and trade at a price that may differ from their net asset value (a discount or premium).

Exchange-Traded Funds (ETFs). ETFs listed on recognised exchanges are qualifying investments and have become extremely popular for low-cost passive investing. A UK investor can hold equity ETFs, bond ETFs, commodity ETFs (those tracking commodity prices through futures or equities, not physical commodities), and multi-asset ETFs within a Stocks and Shares ISA.

UK gilts and corporate bonds. Government bonds (gilts) and sterling-denominated corporate bonds admitted to a recognised exchange are qualifying investments. Gilts within an ISA are particularly useful for higher-rate taxpayers because gilt interest is taxable outside an ISA but tax-free inside.

Real Estate Investment Trusts (REITs). UK and overseas REITs listed on recognised exchanges can be held in a Stocks and Shares ISA, giving tax-efficient access to property income without the stamp duty and management headaches of direct ownership.

Cash. A Stocks and Shares ISA can hold cash as well as investments -- for example, proceeds from selling shares can sit as cash within the ISA wrapper while you decide on your next investment. This is not the same as a Cash ISA, but uninvested cash inside a Stocks and Shares ISA retains the ISA protection.

What You CANNOT Hold in a Stocks and Shares ISA

Cryptocurrency. Bitcoin, Ethereum, and all other digital assets are not qualifying ISA investments. Crypto assets are not admitted to any recognised stock exchange in the traditional sense, and HMRC does not permit them within the ISA wrapper. Any gains on crypto held outside an ISA are subject to Capital Gains Tax at 18% or 24% (2026/27 rates), with only a GBP 3,000 Annual Exempt Amount.

Physical commodities. Gold bars, silver bullion, platinum, and other physical precious metals cannot be held in a Stocks and Shares ISA. Note the distinction: a gold ETF that holds physical gold and lists on a recognised exchange may qualify (depending on its structure and your ISA provider's terms), but the physical gold bars themselves do not.

Derivatives: options, futures, and warrants. Standalone options, futures contracts, and most warrants are not qualifying ISA investments. Some structured products with embedded options may be permissible if they are in the form of a security admitted to a recognised exchange -- but plain vanilla derivatives are excluded.

Unlisted shares in private companies. Shares in companies not listed on a recognised exchange (for example, shares in a friend's startup or private equity co-investment) cannot be held in a Stocks and Shares ISA. The exception is AIM-listed companies, which are treated as listed for ISA purposes despite not being on the main market.

Overseas funds not recognised in the UK. Foreign collective investment schemes not recognised by the FCA or equivalent UK standard cannot be held. Many US mutual funds, for example, are not qualifying ISA investments even if equivalent UK or Irish-domiciled funds on the same strategy are.

Loans and P2P investments. Peer-to-peer loans, even where structured through an Innovative Finance ISA (IFISA) platform, cannot be placed into a Stocks and Shares ISA. The IFISA is a separate ISA type for this purpose.

The GBP 20,000 Allowance

The overall ISA subscription limit for 2026/27 is GBP 20,000, shared across all ISA types you hold (Cash ISA, Stocks and Shares ISA, IFISA, Lifetime ISA -- though the LISA contribution counts toward the GBP 20,000 limit from the GBP 4,000 you can put in). You can split the GBP 20,000 across multiple ISA types as you choose, including multiple ISAs of the same type held with different providers since the April 2024 rule change.

Transfers Between ISAs

You can transfer a Stocks and Shares ISA to another provider or to a different ISA type without losing the tax-free status of accumulated funds. Transfers must be done using the official ISA transfer process -- withdrawing and redepositing counts as a new subscription and uses up your annual allowance.

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Use the CalcHub ISA allowance calculator to plan your GBP 20,000 ISA allocation across Cash, Stocks and Shares, and Lifetime ISA wrappers for 2026/27.