Quick answer
Early warning signs of a business cash gap include customers paying later, the bank balance hitting new lows each month, dipping into GST or PAYG money, paying suppliers late, a single customer becoming most of your revenue, fast growth, a big upcoming tax or super bill, rising stock levels and relying on the overdraft every week. Spotting them early leaves time to fix the cause or arrange funding calmly.
Key points
- Cash gaps usually announce themselves weeks in advance
- Debtor days and the monthly low point are the best early signals
- Using tax money for operating costs is a red flag
- Early action means more options and calmer decisions
Why spot a cash gap early?
Because almost every urgent funding request started as a quiet signal weeks earlier. Customers were paying a bit slower. The bank balance dipped a bit lower at the end of each month. A big BAS was sitting on the calendar. Nobody was ignoring it exactly. It just wasn’t urgent yet.
Spotting a gap early is the difference between calm choices and rushed ones. With a few weeks’ notice, you can chase debtors, renegotiate terms, adjust spending or arrange funding while your statements look healthy. Leave it to the last day and your options narrow to whatever can be done fastest.
Sign 1: customers are paying later
Track debtor days: on average, how many days it takes customers to pay after you invoice. If it’s drifting from 30 to 40 to 50, you’re effectively lending your customers more money each month. Look at who’s slowing down and why.
Sign 2: the monthly low point keeps getting lower
Look at your bank balance on its lowest day each month. If that low point is trending down, the business is using more cash than it’s generating, even if profit looks fine. This is one of the simplest and most reliable early signals.
Sign 3: you’re spending the tax money
If GST collected or PAYG withheld is paying wages or suppliers, a gap is already forming. That money belongs to the ATO and will be due on a fixed date. See our tax-time cash crunch guide.
Sign 4: suppliers are being paid late
Stretching supplier payments is often the first thing owners do when cash is tight. It works for a while, but suppliers notice. If you’re regularly paying late, the gap is real.
Sign 5: one customer has become most of your revenue
Concentration risk. If one customer pays late or leaves, the gap opens overnight. Know your top three customers’ share of revenue and their payment patterns.
Sign 6: you’re growing fast
Growth is great, and it eats cash. New staff, more stock and bigger material orders all come before the new revenue. If revenue is climbing quickly, forecast cash carefully. Our guide on cash flow after winning a big contract covers this.
Sign 7: a big bill is on the horizon
A quarterly BAS after a record quarter, annual insurance, a fleet registration, an equipment lease ending with a balloon payment. Put every big bill for the next six months in one list.
Sign 8: stock is piling up
Rising inventory means cash sitting on shelves. If stock levels are growing faster than sales, cash is getting tied up.
Sign 9: the overdraft or card is used every week
Using a facility occasionally is normal. Leaning on it every week, or keeping it near its limit, suggests a structural gap.
The warning signs at a glance
| Signal | How to measure | Red flag |
|---|---|---|
| Debtor days | Average days to payment | Trending up |
| Monthly low point | Lowest balance each month | Trending down |
| Tax money | Tax account balance vs amount due | Shortfall |
| Supplier payments | Days paid after due date | Regularly late |
| Customer concentration | Top customer’s share | Very high |
| Growth | Revenue growth vs cash | Revenue up, cash down |
| Big bills | Six-month bill list | Not funded |
| Stock | Stock vs sales | Stock growing faster |
| Facilities | Usage pattern | Always near limit |
What to do when you see a warning sign
1. Forecast. Build a simple 8 to 13-week cash forecast. Business.gov.au has free templates. Find the lowest week.
2. Size the gap. Use the Cash Gap Calculator to turn the forecast into a number and a number of days.
3. Fix what you can. Chase overdue invoices, offer quicker payment options, talk to suppliers about terms, delay non-essential spending.
4. Fund what’s left. If a gap remains, arrange funding early. A line of credit suits recurring gaps; a cash-flow loan suits one-offs.
Illustrative example: a commercial cleaning business in Darwin notices its monthly low point has fallen three months in a row while revenue is up. A forecast shows a $55,000 gap in six weeks when a new contract’s wages ramp up. The owner chases two overdue clients, recovering $15,000, and sets up a line of credit for the remaining gap while statements are still strong.
Why arranging funding early pays off
Lenders read your recent bank statements. Apply while they look healthy and the process is smoother. You also have time to choose the right structure and term rather than whatever is fastest today. And you avoid the stress of making big decisions against the clock.
Building a simple early-warning dashboard
You don’t need expensive software. A one-page weekly check, done every Monday morning in ten minutes, covers most of the signals:
- Bank balance today and its lowest point last month
- Total owed by customers, and how much is overdue
- Total owed to suppliers, and how much is overdue
- Tax account balance against the next BAS, PAYG and super due
- Cash expected in and out over the next four weeks
- Any big bills or one-off costs in the next three months
Write the numbers in the same place each week. Trends jump out quickly when the figures sit side by side, and you’ll notice a drift long before it becomes a crisis.
What lenders notice about early movers
Owners who arrange funding before a gap opens tend to have stronger statements, clearer forecasts and more choice. They can wait a day or two for the right structure rather than taking whatever is fastest, and they can negotiate from a position of strength. Lenders notice too: a business that says “we can see a gap coming in six weeks, here’s why and here’s how it closes” is far more reassuring than one that calls on the day the money runs out.
When a warning sign means something bigger
Sometimes a signal points to a structural problem rather than a timing gap, such as prices that don’t cover costs, a customer who’s in trouble or a business model that no longer works. Borrowing won’t fix those. If several signs appear together and keep getting worse, talk to your accountant about the underlying cause. Business.gov.au also has guidance and support for businesses in financial difficulty.
Seen a warning sign? Talk to us before it’s urgent
A short enquiry takes about a minute. There’s no credit check when you first enquire, so it won’t affect your file, and we don’t spray your details around a crowd of lenders. A real person reads your enquiry, looks at the gap you’re expecting and calls with the most sensible way to cover it, whether that’s a line of credit now or simply a plan for later.
Please be accurate on the form, including the size of the gap and when you expect it, so we can match you properly the first time. See if you qualify.
Frequently asked questions
What's the earliest sign of a cash gap?
Usually customers taking longer to pay, or your bank balance's lowest point each month getting lower. Both show up weeks before a crisis.
Is growing fast a cash risk?
Yes. Growth usually means paying for staff, stock and materials before the new revenue arrives, which can open a gap even in a profitable business.
What should I do when I see a warning sign?
Forecast the next 8 to 13 weeks, chase overdue invoices, talk to key suppliers and, if a gap remains, arrange funding before it becomes urgent.
Is it better to arrange funding early?
Yes. Lenders see healthier statements, you have time to choose the right structure, and you avoid paying for urgency.
Can a line of credit help?
For recurring gaps, a line of credit set up while trading is healthy is often the best backstop.
