What is an Innovative Finance ISA?

What can you actually hold in an Innovative Finance ISA?

An Innovative Finance ISA is a tax-free wrapper built for a narrower set of investments than a Stocks and Shares ISA. According to gov.uk, it can hold:

• peer-to-peer loans
• crowdfunding debentures
• certain funds whose notice or redemption period means they cannot be held in a Stocks and Shares ISA
• cryptoasset exchange-traded notes

In plain terms, most of what sits inside an IFISA is you lending money, directly or through a platform, to individuals, businesses or projects, in exchange for an expected return. That is a fundamentally different thing from depositing money with a bank.

Interest, or “alternative finance return”?

Not everything inside an IFISA pays interest in the strict legal sense. Peer-to-peer loans usually do. Some crowdfunding and Sharia-compliant structures instead pay what the rules call an alternative finance return, a profit-share or similar payment treated the same way as interest for ISA and tax purposes, without being structured as a loan at a fixed rate. If you are looking at a Sharia-compliant option specifically, this is generally the term to look for. Our halal ISA guide covers Sharia-compliant options across ISA types in more detail.

This is not just a wording difference. It reflects genuinely different underlying structures, and the specific risks, timelines and how a return is calculated can vary a lot between a straightforward peer-to-peer loan and an alternative finance arrangement. Read the terms of the specific product you are looking at, not just the ISA wrapper around it, to understand what you would actually be entitled to, and when.

How is this different from a Cash ISA or a Stocks and Shares ISA?

A Cash ISA is savings. The bank owes you your money back, plus interest, and your capital does not go up or down with the market. A Stocks and Shares ISA holds shares, funds and similar investments, with returns and losses tied to market prices, but generally through pooled, liquid, exchange-traded assets.

An IFISA sits apart from both. The underlying investment is usually a private loan or a specific project, not a tradeable share or a diversified fund, so it behaves differently in ways that matter for risk and access to your money.

What are the real risks?

Beyond that headline point, four things are worth understanding before you consider this type of ISA:

• Capital is at risk. You can get back less than you put in. Past performance, including any historical default rates a platform publishes, is not a reliable guide to what will happen with your money.
• Illiquidity. Many peer-to-peer loans and crowdfunding investments run for a fixed term. Selling early depends on a secondary market existing and buyers being willing to take on your position, often at a discount.
• Platform and business failure. The businesses or projects you are effectively lending to can fail, and the platform administering the ISA can also fail as a business, which can disrupt access to your money even before any underlying default.
• Complexity. Peer-to-peer and crowdfunding structures vary a lot between platforms. The specific risks depend on the terms of each individual loan or project, not just the ISA wrapper around it.

How does the 2027 Cash ISA cap affect an IFISA?

An Innovative Finance ISA counts as a non-cash ISA. From 6 April 2027, the £12,000 Cash ISA limit for savers who are 64 or under does not restrict what you can put into an IFISA, because that limit only caps Cash ISA subscriptions specifically. The remaining £8,000 of your £20,000 allowance, the part that cannot go into cash if you are under 65, can go into an IFISA, a Stocks and Shares ISA, or a Lifetime ISA.

Where the 2027 changes do reach an IFISA is cash held inside it, for instance while money is waiting to be matched to a loan. From 6 April 2027, a flat 22% charge applies to any interest or alternative finance return paid on that cash, at every age, with no exemption for savers 65 and over. Wholly cash-like portfolios inside a non-cash ISA are also being made non-qualifying, so an IFISA is not a way to shelter a large cash balance from the new rules.

Tax treatment depends on your circumstances and may change.

Questions worth asking yourself

This page is general education, not a recommendation to open or avoid an IFISA. Before considering one, it is worth being honest with yourself about:

• whether you could afford to lose some or all of the money you would put in
• whether you are comfortable not being able to access it quickly if your circumstances change
• whether you understand what, specifically, your money would be lent to or invested in
• whether you have already used up simpler, better-understood options first