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Pay, Payroll & Working Time

What is Cash flow?

Updated 29 Aug 2026 5 min read

Cash flow is the movement of money into and out of a business over a period. It is not profit: profit records a sale when it is earned, cash records it when the money lands, and the gap between those two dates is where otherwise healthy businesses fail.

This glossary article about cash flow provides general information about Australian employment law and workplace practices. It does not constitute legal, HR, or professional advice and should not be relied on as a substitute for advice specific to your business, workforce, or circumstances.

Cash flow is not profit

Profit is accruals-based: revenue counts when earned, expenses when incurred. Cash flow counts money actually moving. A profitable business runs out of cash when the timing does not line up, and that is common rather than exotic:

  • Customers on 30-day terms while wages are paid weekly
  • A quarterly BAS payment landing in a single month
  • Stock bought before it is sold
  • Growth — funding wages and inventory ahead of the revenue they generate

The three types

  • Operating — day-to-day trading: receipts from customers, wages, rent, suppliers. The one that matters most
  • Investing — buying or selling assets: equipment, vehicles, fit-out
  • Financing — loans drawn or repaid, owner contributions and drawings

A business with negative operating cash flow propped up by financing is consuming borrowed money to trade. That is survivable briefly and fatal as a pattern.

The outflows people forget

Forecasts usually fail on the payments that are predictable but not monthly:

  • GST payable on the quarterly BAS
  • PAYG withholding and instalments
  • Superannuation guarantee
  • Annual leave taken in a quiet trading month — paid whether or not revenue is there
  • Insurance and registration renewals

Every one is foreseeable. An average-month forecast hides all of them, which is why a monthly forecast beats an annual budget divided by twelve.

Key takeaways

  • Cash flow measures money moving; profit measures value earned
  • Operating, investing and financing are the three types — operating matters most
  • Negative operating cash flow funded by borrowing is a pattern to act on
  • BAS, super, PAYG and leave are the predictable outflows an average-month forecast hides

Wages are the largest and most variable outflow in a shift-based business — forecast them from the roster, not from an average week.

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Steve Harris

Written by

Steve Harris

Workforce Management and HR Strategy Expert

Steve Harris has spent over a decade advising businesses in hospitality, retail, healthcare, and other fast-paced industries on how to hire, manage, and retain great staff. At RosterElf, he focuses on sharing actionable advice for business owners and managers — covering everything from smarter interview techniques and compliance with Australian employment laws, to building positive workplace cultures.

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