Why banks don't lend to startups

Such a common question. Do banks invest in startups? Do banks lend to startups?

Of course they don't. And once you see the logic, you'll never need to ask again — because the answer is one of those dozen core ideas that explain nearly everything in finance: risk and return have to match.

Banks only ever earn a few per cent of interest. With that little upside, why would they take the enormous downside of losing everything?

Think about the bank's side of the trade. If they lend you £200,000 and everything goes perfectly, the very best outcome they can achieve is getting their £200,000 back plus a few per cent a year. That's the ceiling. There is no scenario in which the bank shares your glorious upside — your business could become worth a hundred million and the bank still just gets its interest.

Now the downside: if your startup fails, the bank loses the lot. And with startups, that isn't a tail risk — it's the most probable outcome for most of them. So the bank is being offered a trade with a capped, tiny upside and a large, likely downside. Nobody sane takes that trade, and banks are, above all things, sane.

What banks actually lend against

Banks lend when two things exist. First, security — assets they can come and take from you if you can't repay: property, machinery, stock, invoices. Something real that limits their downside. Second, steady cash flows — a predictable stream of money out of which the interest and repayments will visibly come. For most startups, both of those are way down the line. A startup is typically some laptops, an idea, and a burn rate. There's nothing to secure against and nothing steady to repay from.

So what money is startup money?

Equity money. Investors — angels, venture capital — take the opposite trade to the bank: they accept that most of their bets will fail, because the ones that succeed pay back not a few per cent but ten, fifty, a hundred times. Uncapped upside is the only rational reason to fund an uncertain thing. That's why the same startup that no bank will touch can raise millions from a VC in the same week — it's not a contradiction, it's the same risk-and-return logic pointing two different kinds of money at two different kinds of trade.

Understand that one idea and a lot of things click at once: why your bank manager smiles and says no, why investors demand so much for their money, and why "debt vs equity" is one of the first things I teach every founder.