Cash Flow vs Profit: The Monthly Health Check Every Business Owner Needs

A business can post a healthy profit on paper and still run out of money to pay wages, suppliers or rent. Profit and cash flow are not the same measure, and confusing them is one of the most common reasons owners are blindsided by a cash crunch. According to the Australian Securities and Investments Commission (ASIC), inadequate cash flow or high cash use was cited by registered liquidators in 52% of company failures reported for the 2022-23 financial year, more than any other single cause. Monitoring cash flow properly is not an accounting formality; it is a basic survival skill for any business owner.

Profit and Cash Are Not the Same Thing

Profit is an accounting result: revenue earned less expenses incurred over a period, regardless of when the money actually changes hands. Cash flow is the physical movement of money in and out of your bank account. A business can be profitable and still be cash poor if customers are slow to pay, money is tied up in stock, or a large repayment falls due before debtors settle their invoices. Equally, a business can look cash-rich in a given month simply because a loan was drawn down or a deposit was banked well ahead of the work being delivered. business.gov.au describes cash flow as the flow of money through your business so you always have enough to pay your expenses, debts and yourself, a framing that is deliberately separate from profitability.

Four Monthly Numbers Worth Watching

You do not need a finance background to monitor cash flow properly. Four simple figures, reviewed every month, will tell you more about the health of your business than your profit and loss statement alone:

• Cash runway: how many months your current cash balance would last if income stopped and outgoings continued at the current rate. Work it out by dividing cash on hand by your average monthly cash outflow.
• Debtor days: the average number of days customers take to pay their invoices. A rising debtor days figure is often the earliest warning sign of a cash flow problem, well before it shows up anywhere else.
• Gross margin: revenue less the direct cost of delivering your product or service, shown as a percentage of revenue. A shrinking gross margin means you are keeping less cash from every sale, even if total revenue is growing.
• Working capital: current assets less current liabilities. A shrinking or negative figure suggests short-term obligations are starting to outpace what you can quickly convert to cash.

Tracking these four numbers in a spreadsheet or through your accounting software, updated monthly, takes under an hour and gives you an early warning system most businesses never build.

Build a Cash Flow Forecast You Will Actually Keep Using

A cash flow forecast does not need to be complicated to be useful. At its simplest, it is a rolling estimate of cash coming in and cash going out over the next three to six months, checked against actuals every month so you can see where reality diverged from the plan. business.gov.au's guide to managing cash flow recommends this kind of regular review specifically to spot seasonal trends and catch shortfalls early enough to act, whether that means chasing overdue invoices, renegotiating supplier terms, or delaying a discretionary purchase. A forecast only has value if someone actually looks at it each month and compares it to what happened; one built once and filed away is worth nothing.

Why This Is More Than a Bookkeeping Exercise

For company directors, cash flow discipline carries a legal dimension as well as a practical one. Under section 588G of the Corporations Act 2001, directors have a duty to prevent their company trading while insolvent, meaning unable to pay debts as and when they fall due. ASIC's guidance for directors is clear that this requires staying alert to the company's financial position on an ongoing basis, not just when the annual accounts are prepared. Breaching that duty can expose a director to civil penalties and personal liability for company debts. Reviewing your cash position monthly is not just good practice; for a company director, it is part of meeting a legal obligation.

Make It a Habit, Not a Once-a-Year Task

The businesses that avoid cash flow crises are rarely the ones with the most sophisticated modelling. They are the ones that check the same handful of numbers every month, notice a debtor days figure creeping up or a cash runway getting shorter, and act on it early. If you would like help setting up monthly cash flow monitoring or building a forecast tailored to your business, FTC's business services team can help you put a simple system in place.

Disclaimer: This article contains general information only and does not constitute financial, legal or tax advice. It has been prepared without regard to your objectives, financial situation or needs. Tax and superannuation laws change frequently, and the information in this article may not reflect the current law or may become inaccurate over time. Before acting on anything in this article, you should consider its appropriateness to your circumstances and seek advice from a registered tax agent or qualified adviser.