Most businesses don't fail overnight. They fail slowly, over months or years, while the founder watches the warning signs and convinces themselves that each one is temporary.
If your business is still alive but you're worried — if something feels wrong but you can't quite articulate what — this article might help. It's a guide to the warning signs that a business is in trouble, what each one actually means, and what you can do about it before the situation becomes irreversible.
This isn't about panic. Some of these signs are present in healthy businesses going through rough patches. But if you recognise several of them simultaneously, or if any of them have persisted for more than a few months, it's time to stop hoping and start acting.
Warning sign 1: You're robbing Peter to pay Paul
You're juggling creditors. Paying this week's most urgent invoice with money that should go to next week's obligation. Delaying HMRC to pay staff. Delaying suppliers to pay HMRC. The cash cycle has become a shell game where you're constantly moving money to avoid the most immediate crisis.
What it means: Your business doesn't generate enough cash to meet its obligations as they fall due. This is the textbook definition of cash flow insolvency. It might be temporary — a seasonal dip, a delayed payment from a major customer — but if it's been going on for more than a month or two, it's structural.
What to do: Stop the juggle for a moment and look at the actual numbers. Map out every payment due in the next 90 days against every pound coming in. If there's a gap, calculate its size. Then ask: is this gap closing (seasonal, temporary) or widening (structural)? If it's widening, read: You've run out of cash. A practical survival guide.
Warning sign 2: You're avoiding the numbers
You haven't looked at the management accounts in weeks. You're not checking the bank balance because you don't want to know. The monthly financial review has quietly disappeared from your calendar. When someone asks about the numbers, you give vague, optimistic answers.
What it means: You already know the numbers are bad. The avoidance isn't ignorance — it's protection. Your brain is shielding you from information that would force difficult decisions. This is a completely normal psychological response, and it's incredibly dangerous.
What to do: Look at the numbers. Today. Not tomorrow. Not next week. Today. Open the accounting software. Check the bank balance. Review the P&L and the cash flow forecast. The anxiety of not knowing is almost always worse than the anxiety of knowing, because knowledge creates options and ignorance creates paralysis.
If you genuinely can't bring yourself to do this alone, ask your accountant to prepare a summary and walk you through it. Having someone else in the room when you confront the numbers makes it more manageable.
Warning sign 3: Your best people are leaving
Your strongest team members are updating their LinkedIn profiles, taking calls in the car park, and handing in their notice. The people with options are exercising them. The people who stay are the ones who can't easily leave.
What it means: Good employees are canaries in the coal mine. They have the market awareness to sense when a company is in trouble and the employability to act on it. When your best people start leaving, they're telling you — through their actions — something they might not say directly: they don't believe the company is going to make it.
What to do: Have honest conversations with the people who are leaving. Not exit interviews — genuine conversations. "I can see you're looking elsewhere. Can you tell me honestly what you're seeing that I might not be?" You might not like the answers, but they'll give you information you need.
For the people who remain, be more transparent about the company's situation than feels comfortable. Uncertainty drives departure faster than bad news. If people know the truth — even if the truth is difficult — they can make informed decisions rather than acting on rumour and anxiety.
Warning sign 4: You've lost your biggest customer (or you're about to)
Your largest client is making noises about reducing their contract, moving to a competitor, or bringing the work in-house. Or they've already gone, and you're staring at a revenue hole that you can't fill.
What it means: Customer concentration risk has materialised. If any single customer represents more than 20-25% of your revenue, losing them is a potential existential event. Even if you can survive the immediate revenue loss, the cash flow impact and the signal it sends to the market can trigger a cascade.
What to do: If the customer hasn't left yet, fight for them — but also immediately begin diversification. If they've already gone, assess the financial impact honestly. Can the business survive on remaining revenue? For how long? What would need to change to close the gap?
This is also a moment to examine why the concentration existed in the first place. If you've been relying on one customer because acquisition is broken, that's a deeper problem that losing the customer has exposed rather than created.
Warning sign 5: You can't make payroll next month
This is the alarm that founders dread most. You've done the sums and there isn't enough money to pay staff at the end of the month. Or there is — just — but only if you don't pay yourself, don't pay the VAT, and don't pay the rent.
What it means: The business is in immediate crisis. Failing to pay employees on time has legal consequences (it's a breach of contract and a potential trigger for constructive dismissal claims), reputational consequences (word travels fast), and personal consequences (these are people who depend on you). It also creates a formal indicator of insolvency.
What to do: Act immediately. Not next week. Now. Explore every short-term option: invoice factoring or financing, emergency overdraft extension, accelerating customer payments, short-term loan from directors (if you have personal resources), negotiating delayed payment with other creditors to prioritise payroll. If none of these are sufficient, you need to talk to an insolvency practitioner today. Not to necessarily enter formal proceedings, but to understand your options and your obligations. Read: How to choose an insolvency practitioner (and what to watch out for).
Warning sign 6: You're working harder for less result
You're putting in more hours than ever, but revenue is flat or declining. The effort-to-output ratio has shifted dramatically. Things that used to work — sales approaches, marketing channels, product features — have stopped working, and no amount of extra effort is compensating.
What it means: Something structural has changed. The market has shifted. Competitors have caught up. Your product has lost its edge. Customer needs have evolved. Working harder in this situation is like running faster on a treadmill — lots of effort, no movement.
What to do: Stop running and look up. What's changed in the market? What are competitors doing that you're not? What are customers saying (or not saying)? The answer isn't more effort in the same direction. It's a strategic reassessment of whether the direction is still right.
This might lead to a pivot, a product evolution, a pricing change, or an honest acknowledgement that the market opportunity has closed. Any of these responses is better than exhausting yourself trying to force an approach that's no longer working.
Warning sign 7: You're lying to someone
You're telling investors that metrics are stronger than they are. You're telling your team that the pipeline is healthier than it is. You're telling your partner that the finances are fine when they're not. You're telling yourself that everything will work out.
What it means: You've crossed from optimism into dishonesty, which means the gap between reality and the narrative has become too large to bridge with spin. The lies — even small ones, even to yourself — are a signal that the truth has become unbearable.
What to do: Stop. The lying creates compounding problems: when the truth emerges (and it will), the trust damage is far worse than the original bad news. The investor who discovers you've been misrepresenting metrics is angrier than the investor who was told the truth early and given a chance to help.
Pick the most important relationship — usually your co-founder or your lead investor — and tell them the truth. The full truth. The relief of honesty is immediate, and it usually unlocks help and options that the lying was preventing. Read: How to have the hard conversation with your co-founder.
Warning sign 8: You've stopped enjoying it entirely
You used to love this. Now you dread Monday mornings. The product that excited you feels like a burden. The customers who energised you feel like obligations. You're going through the motions, running on fumes and obligation rather than energy and conviction.
What it means: This could be burnout (read: You're not lazy. You're in crisis. Understanding founder burnout), or it could be a signal that your relationship with the business has fundamentally changed. Not every loss of enthusiasm is burnout — sometimes it's clarity. Sometimes the passion fades because the business isn't working, and your emotional system has recognised this before your rational mind has.
What to do: First, rule out burnout. Are you sleeping? Exercising? Taking any time off? If basic self-care has collapsed, address that before making any strategic decisions — burnout distorts perception, and what feels like "I don't want this anymore" might actually be "I'm too exhausted to want anything."
If the basics are in place and you still feel nothing, sit with the question: "If I could walk away with no financial or social consequences, would I?" If the answer is yes — immediately and without hesitation — that's information worth paying attention to.
Warning sign 9: Your co-founder relationship is breaking down
Conversations that used to be collaborative are now defensive. Decisions that used to be easy are now contested. There's blame, resentment, avoidance, or passive aggression. You're spending more energy managing the co-founder relationship than managing the business.
What it means: Co-founder conflict both reflects and amplifies business problems. The stress of a struggling business puts pressure on the relationship, and the fractured relationship reduces the company's ability to respond to the business challenges. It's a destructive feedback loop.
What to do: Address it directly. Not through email, not through intermediaries, not by hoping it resolves itself. A structured, honest conversation about what's happening between you — with a mediator if necessary. Read: How to have the hard conversation with your co-founder.
Multiple warning signs: what it means
Any individual warning sign might indicate a temporary problem. Multiple simultaneous warning signs indicate a business in serious trouble. If you're recognising three or more of these patterns, the business needs urgent attention — not more effort in the same direction, but a fundamental reassessment of viability.
This is the moment to seek outside perspective. Talk to your accountant, your mentor, an insolvency practitioner, or a fellow founder you trust. The view from inside a struggling business is distorted by stress, optimism bias, and sunk cost fallacy. Someone outside can see things you can't.
The hardest part is accepting that the warning signs are real. Founders are optimists by nature — it's what enables you to start businesses in the first place. But optimism that prevents you from seeing reality isn't a strength. It's a vulnerability. The founder who can balance optimism with honest assessment is the one most likely to navigate the crisis — or, if navigation isn't possible, to manage the ending in a way that protects everyone involved.
Acting on warning signs early is the single most valuable thing you can do — for yourself, for your team, and for your creditors. The founders who navigate business crises most effectively are the ones who confront reality soonest.
For the bigger decision about whether to keep fighting, read: How to decide whether to close your business or keep fighting.