Profitable and Broke
The short answer: a business can be profitable and still run out of cash because profit and cash flow measure different things. Profit counts sales when you invoice them; cash only counts money that has cleared. When you grow, you pay for stock, staff and work before customers pay you, so the faster you grow, the wider the gap.
The short version
- Profit is an opinion, cash is a fact. You can book a £50,000 sale as profit today and not be paid for sixty days.
- Growth eats cash: stock, staff and work in progress are paid for weeks or months before the resulting sales turn into money in the bank.
- Missing cash usually hides in three places: money customers owe you, money tied up in stock or WIP, and the gap between when you pay suppliers and when customers pay you.
- The fixes are unglamorous: a 13-week cash forecast, invoicing and chasing faster, keeping stock and WIP tight, and closing the payment-terms gap.
There’s a particular meeting we’ve sat in more times than any other. The founder has just had their best quarter ever. Sales are up, the team is busy, the profit-and-loss looks genuinely good. And yet they’re sitting across the table looking faintly haunted, because the bank account doesn’t match the story the numbers are telling. Profit is up. The cash is down. And nobody has ever explained to them how both of those things can be true at the same time.
It’s worth saying plainly, because it catches out good founders all the time: this isn’t a mistake, it isn’t bad luck, and it certainly isn’t a sign you’re doing something wrong. It’s one of the most predictable things that happens to a growing business, and the founders who sleep well are the ones who saw it coming.
Why profit and cash flow are not the same thing
If you take one phrase away from this, make it this one: profit is an opinion, cash is a fact. Accountants love profit. It’s tidy, it behaves, it turns up when you expect it. Cash is the feral one.
Profit is what’s left when you take the sales you’ve earned and subtract the costs you’ve incurred — whether or not the money has actually moved. You can book a £50,000 sale as profit the day you raise the invoice, even though the customer won’t pay for sixty days. You can have a brilliant, profitable month on paper while not a single new pound has landed in your account.
Cash is what’s actually in the bank, right now, that you can use to pay people. It doesn’t care what you’ve earned. It only cares what’s cleared.
For a small, slow-growing business, these two numbers stay roughly in step, so you never have to think about the gap. The faster you grow, the wider that gap yawns open — and that’s the part almost nobody warns founders about.
Why does growth eat cash?
The mechanic underneath it is simple enough once you see it. To grow, you have to spend money before your customers pay you. You buy more stock, take on more staff, fund more work-in-progress — and all of that goes out of the door weeks or months before the resulting sales turn into cleared cash coming back in.
So the faster you grow, the bigger the bet you’re placing on money you haven’t received yet. A business growing at a sprint can be highly profitable and dangerously short of cash at the very same moment. The profit-and-loss is telling you that you’re winning. The bank balance is telling you that you might not make payroll. Both are telling the truth — they’re just measuring different things.
This is why so many businesses don’t fail from a lack of profit. They fail from a lack of cash, often right in the middle of their best-ever growth run — the success is real, and the success is what’s draining the tank. (Wilko made a profit almost every year and still died.)
The three places your cash is hiding
When we pull apart a “profitable but skint” business, the cash is almost always trapped in one of three places. None of them show up on the profit-and-loss, which is precisely why they hide.
1. Money your customers owe you (debtors). Every invoice sitting unpaid is profit you’ve already booked and cash you don’t have. If your customers took thirty days to pay last year and they’re quietly taking fifty now, you are funding their business with yours — and the bigger you grow, the more of your cash is locked up in other people’s accounts. Creeping debtor days are the single most common place we find missing money.
2. Money tied up in stock (or work-in-progress). Every item on a shelf, and every half-finished project you’ve paid for but not yet billed, is cash you’ve converted into something you can’t spend. A warehouse full of stock feels like winning — and in fairness it is, it’s just winning you’ve already paid for. Growing businesses tend to build stock and WIP faster than they realise, precisely because it feels like progress.
3. The order you pay versus the order you get paid. If your suppliers want paying in thirty days and your customers take sixty, you are personally bridging that thirty-day gap on every single sale, out of your own cash. Scale that across a growing order book and the hole gets deeper with every new piece of business you win. Growth makes it worse, not better.
The thread running through all three is the same: cash you’ve earned, sitting somewhere that isn’t your bank account.
How do you fix a cash flow gap?
The good news is that none of this requires more sales, a fundraise or a miracle. It requires looking at the right number and pulling a few unglamorous levers.
Forecast cash, not just profit. A thirteen-week rolling cash forecast — what’s genuinely going to land and leave, week by week — is the single most valuable thing a scaling business can build. It turns “I think we’re fine” into “we’re fine until week nine, and then it’s tight.” That’s the difference between planning and panicking.
Get paid faster. Invoice the day the work is done, not at month-end. Take deposits or stage payments on bigger jobs. Put retainers on standing order. Chase politely but systematically, so it’s a process rather than an awkward favour the founder has to keep doing. Every day you shave off your debtor days is cash handed straight back to you. (If a business customer pays late, the law lets you charge statutory interest and recovery costs.)
Don’t let stock and WIP drift. Order to demand, not to comfort. Bill work in stages rather than in one lump at the end. The goal is to keep as little of your cash sitting still as the business can bear.
Mind the gap between paying and being paid. Where you have the standing to negotiate supplier terms, do it. Where customer terms are dragging, tighten them on new work. You’re trying to close the window you’re personally funding.
None of these are dramatic, and that’s the whole point. The businesses that scale calmly aren’t the ones with a clever trick; they’re the ones doing the dull things reliably, early, before the gap gets frightening. (The British Business Bank and Be the Business have a useful free guide to managing debt and cash flow.)
The real lesson
Profit tells you whether the idea works. Cash tells you whether the business survives long enough for the idea to pay off. They are both important, but only one of them pays the wages on the 28th of the month.
If you’ve ever stared at a record month and a shrinking bank balance and felt slightly mad, you’re not. You’re just growing — and growing without watching your cash is the most expensive way to be right about your business.
That gap between profit and cash is one of the most reliable things we’re brought in to close, usually for founders who are doing far better than they feel. If this is the meeting you’ve been having with yourself lately, book a 30-minute call with me.
— Sophie
Frequently asked questions
Can a business be profitable but have no cash?
Yes. Profit counts sales when they are invoiced and costs when they are incurred, while cash only moves when money clears. A growing business pays for stock, staff and work before its customers pay, so it can show a profit while its bank balance falls.
What is the difference between profit and cash flow?
Profit is the difference between income earned and costs incurred in a period. Cash flow is the actual money coming into and going out of the bank. Timing differences, such as customer payment terms, stock and work in progress, separate the two.
What is a 13-week cash flow forecast?
A week-by-week projection of the cash expected to arrive and leave over roughly the next quarter. It shows when cash will be tight early enough to act, for example by chasing debtors, delaying spending or arranging finance.
How can I get customers to pay faster?
Invoice as soon as work is done, take deposits or stage payments on larger jobs, put retainers on standing order, chase systematically, and tighten terms on new work. Under UK law you can also charge statutory interest on late business payments.
What are debtor days?
Debtor days measure how long, on average, customers take to pay you. Rising debtor days mean more of your cash is sitting in customers’ bank accounts rather than yours.
This article was first published in The Scaling CFO, Sophie Wright’s fortnightly newsletter for founders between £1M and £20M. Subscribe free. Related reading: The things that break at £3M.
Sophie Wright is the founder of WrightCFO, a UK fractional CFO practice. WrightCFO provides fractional (part-time) Chief Financial Officers to founder-led and private equity-backed businesses, typically between £1M and £20M in revenue, scaling towards and beyond £10M. The practice specialises in cashflow forecasting, margin and pricing, investor-ready reporting, post-acquisition integration and exit readiness, across the technology, creative, media, professional services and not-for-profit sectors. WrightCFO works alongside clients’ existing accountants rather than replacing them.
