Why Profitable Businesses Still Run Out of Cash — and How to Fix It

The most stressful phone call I receive is from a business owner whose accountant has just told them they have made a profit — but who can't pay their BAS. It happens more often than most people realise, because profit and cash aren't the same thing. Profit is an accounting concept. Cash is what pays your wages, your suppliers and your tax. When they get out of sync, even good businesses feel like they are drowning.

Over the years I have worked with hundreds of profitable businesses whose real problem was never profitability — it was cash flow. The good news: cash flow is manageable. It requires habits, not heroics.

The difference between profit and cash

Profit is what's left on paper after you deduct expenses from revenue. Cash is what is in the bank. They diverge for four reasons:

1. Customers who owe you money but haven't paid (debtors).
2. Money you have spent on stock you haven't yet sold.
3. Loans and equipment purchases that don't show in your P&L but drain the bank.
4. Tax obligations — GST, PAYG, income tax — collected in one period and paid in another.

You can have a $200,000 profit on paper and $80,000 in the bank. That is not unusual. It is normal — but it becomes dangerous when the owner doesn't understand it.

Profit is an opinion. Cash is a fact.

Six hidden cash flow leaks in Australian small businesses

Most cash flow problems don't come from one big issue. They come from six small leaks running at the same time.

1. Slow-paying customers. Every extra day in average debtor days is real cash sitting in someone else's bank account.
2. Over-generous credit terms. Offering 30-day terms when your industry norm is 14 is a free loan to your customers.
3. Over-investment in stock. Money tied up in stock is money you can't spend on wages, marketing or an opportunity when it arrives.
4. Undisciplined pricing. Small margins are magnified in cash impact — you have to sell far more to fund the same operation.
5. Personal drawings that don't match the business's rhythm. Drawing consistent amounts from a lumpy business creates artificial shortages.
6. Tax surprises. BAS and income tax should never be a surprise. They are predictable — and the cash for them belongs in a separate account, not the operating account.

Building a rolling 13-week cash flow forecast

The single most valuable financial tool for a small business isn't the P&L or the balance sheet. It is a rolling 13-week cash flow forecast. Thirteen weeks — because it is long enough to see problems before they arrive, and short enough to keep the numbers honest.

Every Friday, look at the next 13 weeks:

• What cash will come in?
• What cash will go out?
• What's the closing balance each week?
• Where is the tightest week?

The forecast doesn't need to be perfect. It needs to be regular. A business owner who has this habit rarely gets surprised — and never gets ambushed by the ATO.

Getting paid faster

Debtor days are the fastest lever most Australian small businesses can pull. Every extra day of delay is money out of your bank. Practical ways to shorten it:

• Invoice the day work is completed, not weekly or monthly in batches.
• Ask for deposits, milestone payments, or upfront payment where appropriate.
• Automate reminders — most businesses lose money simply because no one has followed up.
• Make it easy to pay: multiple payment options, one-click links, direct debit.
• Have a professional collections process — friendly, firm and consistent.

Managing GST, PAYG and tax without surprises

Tax obligations should never be an emergency. Set up a separate bank account. Every time revenue lands, sweep a percentage into it — typically 10% for GST plus a further reserve for PAYG and income tax. Treat that account as though it belongs to the ATO, because it does. Businesses that do this never miss a BAS.

The dashboard every owner should monitor

The most successful business owners I work with have a simple weekly dashboard — usually no more than six numbers:

• Cash in the bank today.
• Cash expected in over the next 4 weeks.
• Debtors over 30 days.
• Cash reserved for tax.
• Payroll cost this month.
• Break-even sales for the month.

Six numbers. Fifteen minutes. That is the difference between running a business and being run by one.

Early warning signs of financial stress

By the time a business is in serious trouble, the warning signs have usually been visible for six to twelve months. The early signs are quiet but consistent:

• Regularly using overdraft to make payroll.
• BAS or superannuation being paid late — even by a few days.
• Debtor days creeping up month after month.
• Owner drawings being paused or reduced.
• Suppliers being paid outside terms.

Any one of these is manageable. Two or three together is a signal to have a serious conversation with your advisor — quickly.

Cash reserves: how much is enough?

The right cash buffer depends on the business, but a reasonable target for most Australian small businesses is three months of operating expenses. Below one month is fragile. Above six is usually money that could be better deployed. The point of a reserve isn't just safety — it is freedom to say no to bad customers, bad contracts and bad opportunities.