5 Early Warning Signs of a Cash Crunch — Before the P&L Tells You
Businesses don’t fail because they stop being profitable. They fail because they run out of cash. These are not the same thing: your P&L can say “we made money this month” while the bank account is empty, because profit is accrual and cash is collection. The gap between them is where most owners look only on the day a payment is due.
I spent years in manufacturing working on budgets, cash-flow planning and inventory — including through high-inflation periods, where keeping cash alive is a discipline of its own. What I learned: a crunch never happens in a day. It signals months ahead. Here are the five signals.
1. Receivables are ageing and you haven’t noticed
The earliest and most reliable indicator: average collection period. If it was 45 days last year and it’s 60 now, don’t let flat revenue reassure you. It means you’re tying up more cash to do the same business.
Practical check: age your receivables into 0-30 / 31-60 / 61-90 / 90+ days. If the 90+ bucket is growing, there’s frozen money there, and it rarely thaws at the same speed.
2. Inventory grows while sales stay flat
Inventory is money that hasn’t turned back into cash. If revenue is stable but inventory turnover is falling, you’re burying cash in the warehouse. In demand-forecasting and inventory-optimisation work I ran, a single business saved roughly $300,000 a year, and most of that came not from buying less, but from buying at the right time.
3. The payment-terms gap flips against you
Simple but lethal: if you collect from customers slower than you pay suppliers, you are financing the difference. Collect in 60, pay in 30, and every sale puts you 30 days in the hole. The bigger you grow, the wider that gap gets — which is why growth itself can cause a cash crunch.
4. “Invisible” fixed costs pile up
These slip through because each one is small: vehicle insurance, service contracts, software subscriptions, rent and dues, inspections and taxes. None of them breaks the budget alone; together they spike your cash calendar.
They share one trait: each is tied to an asset and has a known date. Which means they’re foreseeable — if you have an asset inventory. I laid out that skeleton in does your business have an asset inventory.
5. Decisions get made by looking at the bank balance
This is the most dangerous one. If investment, purchasing and payment decisions are driven by today’s balance rather than a cash projection, the business is driving without visibility. Even a simple 13-week cash-flow view ends that blindness.
The 13-week cash window
The tool that makes all five signals visible at once is a 13-week cash forecast. Why thirteen: a quarter is far enough ahead to see a problem coming and near enough that the estimate still means something. A monthly view arrives too late — cash runs out mid-month, not at month end.
The table is simple: rows are weeks, columns are money in · money out · closing balance. You enter money in invoice by invoice, dated not when you hope it lands but by the customer’s actual average delay. Money out groups into three: fixed costs (rent, payroll, insurance, subscriptions), variable costs (materials, fuel, subcontractors) and periodic hits (tax, social contributions, loan repayments). The third column then does the real work: it shows which week the balance goes below zero.
The value isn’t forecast accuracy. It’s how many weeks of warning you get. A gap in week eight means eight weeks of room to move: accelerate collections, defer a payment, split an order. Spot the same gap in the week it happens and only expensive options remain — card cash advances, late-payment interest, panic discounting.
Cash and profit are not the same thing
This is the most expensive misconception in a small business: a profitable company can still go under. The P&L books a sale the moment the invoice is issued; cash exists only when the money lands. The gap between them is credit terms, and in a growing business that gap widens as you grow, because selling more means more receivables and more stock. Both take cash out of today and park it in the future.
The practical consequence: growth periods are the riskiest ones for cash. “Business is good but there’s no money” isn’t a contradiction; it’s a precise description of that mechanism. So the question to ask before committing to growth is not “will it be profitable” but “how many weeks of this can I finance”, and only the cash forecast answers it. The P&L never sees the question.
If the squeeze has already started: three moves, in order
Noticing late calls for sequence, not panic. First, collections — the fastest and cheapest cash you have is money already earned: work the ageing list from the oldest invoice down, call each one, and pin every promise to a date in writing. In a business that never set up receivables tracking, this move alone buys weeks. Second, sort the costs into stoppable, deferrable and untouchable. The stoppable ones are usually the invisible ones — unused seats, software billed twice, contracts that renew silently. Third, the terms conversation: extended terms with a supplier, restructuring with the bank, an early-payment discount with a large customer. All three are cheap when done early and expensive when done at the last moment.
Keep the order. A business that starts by cutting costs before chasing collections shrinks not its spending but its operation, and a smaller operation shrinks next quarter’s cash too. Reach your own money first, then reorganise what leaves.
What to do: three moves
- Build a 13-week cash projection. No complex model needed: weekly collections, payments, closing balance. Update it every Friday.
- Age your receivables and chase the oldest. Collection discipline creates cash faster than a sales increase does.
- Tie fixed costs to assets and put them on a calendar. Insurance, maintenance, contract renewals — which asset, which date. Odovo does this for a vehicle fleet, Duevo for customer equipment and service contracts, RentMind for rental property, with reminders before the money is due.
Cash management isn’t about heroics; it’s about visibility. The fewer surprises you have, the more options you keep.
The most concrete of these signals shows up in receivables: accounts receivable covers the aging report and the collection routine.
Who keeps the table, and how often
Keeping the 13-week table is not an accounting task — it’s the owner’s task, because every row in it ties to a decision, and the person making those decisions should see the table with their own hands. Accounting supplies the data (invoice lists, due dates, payment plans); the one who reads it and asks “how do we close this week?” is the owner.
The rhythm is simple: once a week, same day, half an hour. Monday morning or Friday afternoon — which one doesn’t matter; that it’s fixed does. In that half hour, three things happen: write in last week’s actuals, roll the 13 weeks forward, and mark the week where the balance comes closest to zero. That third mark becomes the single management agenda of that week.
The table’s power isn’t in the forecast but in the repetition: from about week four you start seeing your own forecasting error — which customer never pays on the date they name, which cost always gets forgotten, which month runs on surprises. From that point the table measures not just cash but the business’s own habits; and the only thing that can be fixed is the thing that gets measured. A business that builds the table once only rolls the rows forward each quarter after that — the half day of setup shrinks to half an hour a week for the rest of the year. And that half hour largely retires the most expensive surprise a business has: running out of money in a week nobody saw coming.
Frequently Asked Questions
I’m profitable — why do I have no cash? Because profit is booked on accrual: you record it when you invoice, you get paid 60 days later. In between, inventory, receivables and fixed costs consume cash. Profit tells you what you earned; cash tells you when.
Why 13 weeks specifically? It covers a quarter — long enough to show near-term obligations and seasonal swings, short enough that the forecast is still reliable. It’s the standard horizon in short-term liquidity management.
In a crunch, which cost do I cut first? General rule: first speed up collections (fastest impact), then slow inventory purchasing, and cut fixed costs last. Starting with fixed costs usually reduces capacity — which reduces revenue and deepens the crunch.