On paper, an angel cheque does nothing for years. You wire the money, you get a share certificate, and then the value of that stake is whatever the last funding round implied - a number on a statement that you can't spend. An exit is the event that ends that limbo. It's the point at which your shares become cash, or something you can sell for cash.
For UK angels there are three routes to that point: the company gets bought, the company lists on a stock market, or you sell your shares privately to someone else. Acquisition, IPO, secondary. They sound interchangeable. They aren't - the money arrives on different timelines, in different forms, and with different people ahead of you in the queue.
What happens in an acquisition?
An acquisition - usually called a trade sale - is when a larger company or a private-equity buyer buys the startup outright. It is the workhorse of UK exits. The overwhelming majority of angel returns that ever materialise come this way, not through the stock market.
The buyer pays for the whole company, and the proceeds are split among shareholders according to the rules baked into the cap table. That last clause is where angels get caught out. A headline of "acquired for £40m" does not mean ordinary shareholders split £40m. Investors holding preference shares typically get paid first, through their liquidation preference - often the return of their money, sometimes a multiple of it - before anyone else sees a penny.
Two structures matter here. In a share sale, the buyer purchases your actual shares; you're a seller and the gain is yours. In an asset sale, the buyer takes the company's assets and the cash flows back through the company itself, which can change the tax treatment and who receives what. Deals also rarely pay everything on day one. A chunk may be held back in escrow against warranty claims, and founders often face an earn-out - money paid over the following years only if targets are hit. Angels usually sit outside the earn-out, but the headline figure and the wired figure can still be a long way apart.
A headline price is what the company sold for. Your cheque is what's left after the preference stack has been paid.
What happens in an IPO?
An initial public offering - an IPO - is when the company sells shares to the public and lists on a stock exchange, such as the London Stock Exchange or its junior market, AIM. It's the exit that gets the headlines and almost never gets the cheque. In any given year only a handful of British startups are big enough, profitable enough, or fashionable enough to list. For most portfolios, an IPO is a rounding error.
An IPO is also less of a clean exit than it looks. When a company floats, early investors don't automatically cash out. Shares are usually subject to a lock-up - commonly six months - during which insiders can't sell. After that, you hold publicly traded stock whose price moves daily, and you have to choose when to sell into the market. The liquidity is real, but it's gradual, and the value you eventually realise depends on where the share price sits when you finally trade out.
What is a secondary sale?
A secondary sale is the quiet third option. Instead of the company being bought or floated, you sell your existing shares to another investor while the business carries on privately. Nothing changes for the company - no new money goes in - the shares simply change hands.
Most secondaries happen alongside a later funding round. When a growth-stage fund leads a Series B or C, it sometimes offers to buy a slice of early stock as part of the deal, giving the first angels and the founders a chance to take some money off the table years before any full exit. There are also dedicated secondary buyers and platforms that exist specifically to purchase early-stage shares.
The appeal is obvious: liquidity without waiting seven, ten, twelve years for an acquisition. The catch is that a secondary only exists when there's a willing buyer and an agreed price, and early-stage shares are hard to value and harder to sell. Expect a discount to the last round's headline valuation, and expect the company's articles to have a say - shareholder agreements frequently carry pre-emption rights, rights of first refusal, and board consent clauses that govern who you're even allowed to sell to.
Why the liquidation stack decides your cheque
Whichever route you take, the same question determines your return: who gets paid, in what order, when the money lands. That order is the liquidation preference stack, and it's set long before any exit, in the term sheets of each round.
Preference shareholders - typically the VCs and later investors - sit at the top. They take their preference first. Ordinary shareholders, which often includes early angels and the founding team, are paid from whatever remains. In a strong exit, everyone does well and the order barely matters. In a soft exit - a company sold for less than the capital raised - the preference stack can absorb the entire proceeds, and ordinary shareholders can walk away with little or nothing despite a sale that looked respectable in the press. If you take one thing into your next deal, make it this: read the preference terms before you wire, because that's the document that decides what an exit is worth to you.
What about SEIS and EIS relief at exit?
The tax treatment at exit is one of the genuine advantages of investing through the UK's venture schemes - and it's where the timing of a sale starts to matter.
For both SEIS and EIS, gains on the shares are generally exempt from capital gains tax provided you held them for at least three years and received income tax relief on the investment. So a clean, profitable exit after the holding period can be free of CGT on the gain. The minimum holding period is three years for both schemes. Sell too early - or hit certain company restructurings - and the relief can be withdrawn or clawed back.
It cuts the other way too. If the exit is a write-off rather than a windfall, SEIS and EIS both offer loss relief, which can soften the blow of a failed investment against your income or gains. The schemes are built to reward the long hold and cushion the losses - the two things angel portfolios produce in abundance.
The exact reliefs, holding periods and the company-side rules do change, and some thresholds were revised in April 2026. Always check the current position on the official guidance: gov.uk's venture capital schemes guidance for investors. None of this is tax or investment advice - it's general information, and you should take FCA-regulated advice on your own circumstances before acting.
How long does an exit take?
Longer than anyone wants. There's no fixed clock, but seven to ten years from first cheque to exit is a fair working assumption, and plenty take longer. Companies that look like sure things stall; companies you'd written off get acquired out of nowhere. A secondary sale can pull some liquidity forward, but only when a buyer turns up. The honest version is that you don't control the timing of an exit - the market, the buyer, and the company's trajectory do. Which is exactly why how a portfolio is spread tends to matter more to an angel's outcomes than any single exit.