The offer was genuinely good, on paper: a meaningful cash injection in exchange for a minority stake, from an investor who understood the sector and clearly wasn't just chasing a quick flip. Most of the advice I got at the time treated it as an easy yes — take the money, take the expertise that comes with it, dilute a bit now to grow faster. I turned it down and took out a business loan for roughly the same amount instead. It's not the advice most funding articles give, and it wasn't right for everyone in my position. But it was right for me, and it's worth being specific about why, because the reasoning is more useful than the conclusion.
Doing the actual maths on the equity
The number that changed my mind wasn't the cash on offer — it was working out what the equity being asked for would plausibly be worth if the business did what we genuinely believed it could do over the next five years. Framed as 'we'll give up 15% for this cash injection', it sounds reasonable. Framed as 'we're giving up a fifth of everything this business builds from this point forward, forever, in exchange for eighteen months of runway', it looks very different. A loan, however uncomfortable the repayments, has an end date. Equity doesn't.
To make the comparison concrete: the investment on the table was for around 15% of the company at the valuation being discussed. The loan I took instead, for a similar amount of cash, came with a personal guarantee — standard practice for a business of our size and age, and worth naming honestly, because a lot of owners don't realise until the offer letter arrives that 'business loan' for a company without years of accounts often means the bank wants the director's own assets behind it too. Interest and fees over the loan's term added up to a real, fixed cost, considerably less in cash terms over five years than 15% of what the business went on to be worth — but the comparison only works because the business did grow. Run the same sums against a flat or declining five years and the loan looks like the worse decision, because you'd have paid a fixed cost for a benefit that didn't fully materialise. That asymmetry is the entire trade-off in one sentence: debt is cheaper when you're right about growth, and more expensive relative to the alternative when you're wrong.
What the loan actually cost
None of this is a case that debt is free or comfortable — it very much isn't. Repayments started within weeks of the money landing, whether or not the growth we were funding had started paying off yet, and that fixed monthly obligation meant genuinely tighter cash flow for the better part of two years. There were a couple of months where covering the repayment meant everything else in the business waited. That's a real, serious cost, and anyone comparing debt to equity honestly needs to weigh it, not wave it away.
Equity feels free because nothing's due next month. It isn't free — it's expensive on a much longer, much larger timeline, which is exactly what makes it easy to underprice in the moment.
What we got to keep
What the loan bought, alongside the cash itself, was total control over decisions that an investor would have had a legitimate stake in — pace of growth, how profit got reinvested versus taken out, which opportunities to chase and which to ignore. We made mistakes an investor might have talked us out of. We also made calls, particularly around slowing down deliberately for a stretch when the market shifted, that a growth-focused investor would likely have pushed hard against, and which turned out to matter more than any single fast decision would have.
Where I'd have made the wrong call
It's worth being honest about the version of this decision that goes badly, because I've watched it happen to someone else since. A friend running a similar-sized business took on debt over equity at roughly the same stage I did, for similar reasons — and their market didn't hold. The fixed repayments that felt manageable against optimistic projections became a genuine threat to the business against the real numbers eighteen months later, at a point when an equity investor would have absorbed some of that pain alongside them rather than the business carrying all of it alone. They survived it, but only by extending the loan term and cutting costs harder than would ever have been necessary with a shared-risk investor in the mix. Debt doesn't punish a wrong growth bet gently. It punishes it on a fixed monthly schedule regardless of how the year is actually going.
Why this isn't a case against investment
This isn't an argument that debt beats equity — plenty of businesses genuinely need what a good investor brings beyond the cheque: connections, credibility, hard-won experience of scaling something similar. What investors actually look for is worth understanding properly before dismissing that route, because for a business built to scale fast and capture a market before someone else does, the value of investor expertise and network can easily outweigh the cost of the equity given up. That calculation simply didn't favour us — a steadily growing, cash-generative business without a first-mover land-grab to win.
The question that actually matters
The useful question was never 'is debt better than equity' in the abstract. It was: can this business service loan repayments from its own trading, comfortably, even in a bad month? If genuinely yes, debt lets you keep full ownership of whatever the business becomes. If the honest answer is no — the business can't yet support the repayments — that's not a reason to force a loan through regardless; it might be exactly the situation equity is built for, because an investor shares the downside risk a lender never will.
A worked example
Here is the sum, with illustrative numbers rather than my actual ones, because the method is the useful part. Say the business needs £50,000. Option A is selling 15% of the company. Option B is a five-year business loan at 9.5%, which works out at £1,050.09 a month, £63,006 repaid in total, so £13,006 of interest. That £13,006 is the entire cost of the debt route. Now price the equity route in the same currency: 15% of whatever the business is worth in five years. If it gets to £400,000, the stake you sold is worth £60,000 — the loan was roughly £47,000 cheaper. At £150,000 the stake is worth £22,500, and the loan is still the cheaper option. At £80,000 the stake is worth £12,000, slightly less than the interest, and the equity route wins.
That gives you a single number worth calculating before any meeting about funding: divide the total interest by the stake being asked for, and you get the valuation at which the two routes cost exactly the same. Here it is £13,006 divided by 0.15, or roughly £86,700. Above that valuation in five years' time, the loan was cheaper. Below it, the investor was. Then ask yourself honestly whether you believe the business clears £86,700 — because if the answer is an obvious yes, the equity is being underpriced, and if it is genuinely uncertain, the investor is being paid to share a risk you would otherwise carry alone. One caution the arithmetic hides: the £1,050 falls due every month whether the growth arrives or not, so run the same sum against a year where revenue drops 20% before deciding the maths has answered the question for you.
What I'd tell someone facing the same choice
Do the maths on what the equity is actually worth in the outcome you believe in, not the outcome you're being cautious about — founders are often more optimistic about their business's future than they are willing to admit when deciding how much of it to give away. Stress-test the loan against a genuinely bad year, not just the plan you're hoping for — if the repayments only work when everything goes right, that's not really an answer, it's a bet. Be honest about whether the business can genuinely service debt repayments without investor cash. And don't assume equity is the sophisticated choice and debt is the fallback. Sometimes it's the other way round, and the fixed, finite cost of a loan is the more disciplined decision — even when it's the harder one to make in the room with the money on the table.
Common questions
Is debt or equity cheaper for a small business?
Debt is cheaper when the business grows, and equity is cheaper when it does not — that asymmetry is the whole decision. There is a number that settles it for your case: divide the total interest you would pay over the loan's life by the percentage stake an investor wants, and you get the future valuation at which both routes cost the same. On a £50,000 five-year loan at 9.5%, the interest is about £13,006; against a 15% stake, the break-even valuation is roughly £86,700. Clear that in five years and the loan was cheaper. Fall short and the investor was, because they shared the disappointment while a lender simply collected. Then stress-test the repayment against a bad year, not the plan you are hoping for.
Will I have to give a personal guarantee on a business loan?
For a young company, usually yes, and it is the part owners most often discover only when the offer letter arrives. Lending to a limited company sits outside the FCA's consumer perimeter, and a lender with no filed accounts and no assets to look at will want the director's own assets behind the debt instead. Three questions decide your actual exposure: is the guarantee limited to a capped amount or unlimited, is it joint and several with any co-directors, and what event triggers it. Critically, it survives liquidation — winding the company up ends the company's liability, not yours. The notable exception is a Start Up Loan, which requires no security and no personal guarantee.
What happens if I cannot make the loan repayments?
Talk to the lender before the first missed payment, not after the third — that is the single thing that most changes the outcome. Lenders would generally rather restructure than enforce, and a term extension, a temporary interest-only period or a short payment holiday are all far easier to agree while the account is still performing. If you go quiet, the sequence is formal demand, default recorded on the company and often your own credit file, then a call on any personal guarantee, then court action. Where a guarantee is in play the debt does not disappear if the company does. If the business is genuinely insolvent, take licensed insolvency advice early: directors who keep trading and worsening creditors' position risk personal liability for wrongful trading.
Does taking a loan make it harder to raise investment later?
Not usually, and it can help — arriving with a trading record and a serviced loan is evidence you can run the business, and it means you are negotiating from a stronger position than a founder who needs the money this quarter. Two caveats matter. Investors will look at whether their cash is funding growth or quietly repaying your bank, and most will not fund the latter, so the debt needs to be comfortably serviceable from trading. And undocumented informal borrowing — the loan from a family member nobody wrote down — is a genuine due-diligence problem, because an unclear liability or a half-remembered equity promise can stall a round. Tidy those up in writing long before anyone starts diligence.
What does an investor get that a lender does not?
Control and a permanent share of the upside, alongside the cash. A lender gets interest and their capital back, then leaves; an equity investor typically gets a shareholding, often a board seat or observer rights, information rights, and a shareholders' agreement containing consent provisions — decisions the company cannot take without their agreement, commonly issuing new shares, borrowing above a threshold, changing the business, or selling it. Those clauses are the real substance of the deal, more than the percentage everyone focuses on. What you get in return can be genuinely valuable: shared downside risk, sector experience, introductions and credibility. Whether that outweighs a fixed, finite interest cost depends entirely on whether your business needs any of it.
