Quick answer
A cash flow gap is the shortfall that appears when money goes out before money comes in, even in a profitable business. Common causes are customer payment terms, stock bought ahead of sales, tax obligations falling due at once, seasonal swings and rapid growth. Measuring the gap's size and timing lets you choose the right fix: better terms, a line of credit, invoice finance or a short-term loan.
Key points
- Profit and cash flow are not the same thing
- Payment terms, stock and tax timing create most gaps
- Growth often makes the gap bigger, not smaller
- Measure the gap before choosing how to fund it
Profit is an opinion, cash is a fact
An old accounting saying captures the problem neatly. Your profit and loss statement records sales when they are made and costs when they are incurred. Your bank account records money when it actually moves. A business can be solidly profitable on paper while the bank account is empty, because the money from sales has not arrived yet, or because it has been spent on stock, equipment or tax before the customer pays.
The five most common causes
| Cause | How it creates a gap |
|---|---|
| Customer payment terms | You do the work now and get paid in 30, 60 or 90 days |
| Stock purchases | You pay for stock weeks or months before selling it |
| Tax timing | GST, PAYG withholding and super fall due together |
| Seasonal swings | Quiet months still carry rent, wages and repayments |
| Growth | More sales need more stock, staff and credit to customers |
Growth deserves special mention. Many owners are surprised that a record year leaves them shorter of cash than a quiet one. The reason is that every extra sale on terms adds to the money owed to you, and every extra job needs materials and labour paid up front. Growth consumes cash before it produces it.
Measuring your gap
The simplest tool is a six-month cash flow forecast: opening balance, money expected in each month, money expected out each month, closing balance. The lowest closing balance tells you the depth of the gap, and the month it happens tells you when you need help. Our cash flow gap calculator does the arithmetic and shows the running balance as bars. business.gov.au also has a free cash flow statement template.
Be honest with the forecast. Include GST, PAYG withholding and super in the months they are due, loan repayments, annual insurance and registration, and a realistic view of when customers actually pay rather than when the invoice says they should.
Fixes that do not involve borrowing
- Invoice faster. Send invoices the day the work is done.
- Tighten terms. Shorter terms and deposits on larger jobs bring cash forward.
- Chase politely and promptly. A reminder on day one after the due date works better than a stern letter on day sixty.
- Negotiate supplier terms. Longer terms with suppliers shrink the gap from the other side.
- Separate tax money. Moving GST and PAYG into a separate account weekly avoids the quarterly shock.
- Trim slow stock. Clearing slow-moving stock releases cash.
Large businesses must report how quickly they pay small suppliers, which can help when negotiating terms with big customers.
When finance is the right tool
If the forecast shows a gap that opens and closes, finance can bridge it efficiently:
- A business line of credit for gaps that recur every month.
- Invoice finance when the cause is slow-paying business customers.
- A short-term working capital loan for one deep dip.
- Trade finance when stock purchases are the cause.
Match the product to the shape of the gap. A fixed loan for a gap that recurs monthly means paying for money you only need some of the time.
When finance is the wrong tool
If the forecast shows the balance falling month after month without recovering, the business has a profitability or cost problem, not a timing problem. Borrowing will postpone the crunch but make it bigger. In that case, review pricing, margins and overheads with your accountant before considering finance.
An illustrative example
A commercial cleaning company won three new contracts in one quarter. Profit forecasts looked excellent, but the cash forecast showed the balance dropping sharply for two months because wages were weekly and clients paid monthly in arrears. An invoice finance facility released cash from each invoice as it was issued, and the gap closed once the contracts settled into their payment rhythm.
Building a buffer for next time
Once the immediate gap is handled, build a buffer. Many owners set aside a small percentage of every deposit until they hold a few weeks of fixed costs. A buffer turns future gaps from emergencies into inconveniences, and makes the business more attractive to lenders when it does need funding.
Reading the warning signs early
Cash flow gaps rarely arrive without warning. The signs build gradually: paying suppliers a little later each month, juggling which bills to pay first, delaying BAS, dipping into personal savings, taking a short-term loan to cover wages. Each step feels manageable on its own. Together they show a business whose cash cycle is out of balance. Catching it at the first or second sign gives you far more options, and usually cheaper ones, than waiting until a supplier stops deliveries or a tax debt has grown.
A simple habit helps: once a month, compare the bank balance with the same date last month and last year, and list what is owed to you and what you owe. If the money owed to you is growing faster than sales, customers are paying more slowly. If what you owe is growing faster than costs, you are stretching suppliers. Either trend is worth acting on before it becomes a gap you have to fund.
Talk through your gap
Bring your forecast to the conversation. Send a 60-second enquiry and tell us how big the gap is and when it hits. Enquiries carry no credit check, a specialist reads it, and we keep it confidential. Close your cash flow gap.
Frequently asked questions
How do I know if I have a cash flow gap?
If you regularly struggle to pay wages, suppliers or tax on time despite making a profit, you have a timing gap. A simple six-month cash flow forecast will show it.
Can I fix a cash flow gap without borrowing?
Often partly. Faster invoicing, tighter terms, longer supplier terms and a tax savings account all help.
What finance suits a recurring gap?
A line of credit or invoice finance usually suits gaps that open and close every month.
What if the gap never closes?
Then the problem is profitability or costs, not timing. Borrowing alone will not fix it.
How big should my cash buffer be?
Many owners aim for a few weeks of fixed costs. The right figure depends on how predictable your income is.
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