Quick answer
To improve cash flow, shorten the time between doing the work and banking the money, and lengthen the time before cash leaves. In practice that means invoicing on the day, taking deposits, tightening payment terms, holding less idle stock, negotiating supplier terms, putting tax aside weekly and forecasting 13 weeks ahead so a shortfall never arrives as a surprise.
Key points
- Cash flow is about timing: the same profit can feel rich or broke depending on when money moves.
- The fastest wins usually sit on the incoming side — invoicing speed, deposits and follow-up.
- Idle stock and lumpy tax bills are the two quiet drains most owners underestimate.
- A rolling 13-week forecast turns cash flow from a feeling into a number you can act on.
Most cash flow advice is really one idea wearing different hats: bring money in sooner, send it out later, and don’t let anything sit idle in between. The trick is knowing which hat to put on first, because the levers that help a café are not the same ones that help a builder waiting on a progress claim.
This piece walks through twelve levers in the order they usually pay off, then shows how they stack up in an illustrative example.
Why does a profitable business run short of cash?
Because profit and cash keep different calendars. Your profit and loss statement records a sale when you earn it. Your bank account records it when the customer pays — which might be 30, 45 or 90 days later. Meanwhile wages, rent, suppliers and the ATO keep their own schedules.
Three patterns cause most shortfalls:
- Slow collection. Work is done, invoiced late and paid later still.
- Cash parked in things. Stock on shelves, materials on site, equipment bought outright.
- Lumpy obligations. BAS, PAYG instalments, insurance renewals and annual licences arriving in the same month.
Growth makes all three worse, which is why busy businesses so often feel broke. If you haven’t separated the two ideas before, our feature on reading a profit and loss statement is a good companion.
Which cash flow levers work fastest?
Start with money you are already owed. It’s the cheapest cash you will ever find.
- Invoice the same day. Every day an invoice sits in drafts is a day added to your cash cycle.
- Take deposits. For quoted work, a deposit funds materials and filters out uncommitted customers. See our guide to deposits and progress payments.
- Shorten your terms. If you still offer 30 days by habit, ask whether 7 or 14 would lose anyone. business.gov.au notes business customers commonly pay in 7, 14, 21 or 31 days — you get to choose.
- Make paying easy. Payment links on invoices, card and bank transfer options, and clear reference numbers.
- Chase early and politely. A reminder the day after the due date gets paid far more often than a stern letter at day 60. Our overdue invoice playbook has scripts.
- Bill in stages. Long jobs should be broken into milestones rather than one invoice at the end.
How do you slow down cash going out — without upsetting anyone?
The goal isn’t to pay late. It’s to pay on time, on terms that suit you.
- Negotiate supplier terms. A reliable customer asking to move from 14 to 30 days is a normal commercial conversation.
- Match big purchases to their payback. Paying cash for a machine that earns its keep over five years drains today’s balance for tomorrow’s benefit. Equipment finance or a term facility can spread the cost across the period it produces income.
- Trim idle stock. Work out which lines turn slowly and stop reordering them. More in stock and cash flow.
- Review subscriptions and standing orders quarterly. Small leaks add up.
What about tax — why does it catch so many owners out?
Because GST and PAYG withholding sit in your account looking like your money when they aren’t. When BAS is due — 28 October, 28 February, 28 April and 28 July for quarterly lodgers, according to the ATO — the balance drops in one hit.
- Put tax aside weekly. Move GST collected, PAYG withheld and an estimate of income tax into a separate account every week. Our guide on how much to set aside for tax shows how to size it.
- Forecast 13 weeks ahead. A rolling forecast shows you the week a BAS, a wage run and a slow-paying client collide — while you still have time to act. Try our free 13-week cash-flow forecaster.
Cash flow problems rarely arrive without warning. They arrive without a forecast.
If you’ve pulled these levers and the numbers still show a gap, check what funding you could qualify for — it takes about a minute and there’s no credit check at the enquiry stage.
What does this look like in practice? (Illustrative example)
The figures below are illustrative only and describe no real business. A small fit-out contractor turns over roughly $1.2m a year. Customers pay 42 days after invoice on average, invoices go out about six days after job completion, and the business carries around $60,000 of materials in its yard.
| Change | Before | After | Cash released (approx.) |
|---|---|---|---|
| Invoice on completion day | 6 days late | Same day | about $20,000 |
| Deposit on new jobs | None | 20% up front | about $20,000 on a typical month of new jobs |
| Terms tightened | 30 days | 14 days | about $30,000 if average payment falls by 10 days |
| Materials held | $60,000 | $40,000 | $20,000 |
None of these changes adds a dollar of profit. Together they could free up around $90,000 of cash that was simply sitting in the gaps — money that now covers wages, BAS and the odd surprise.
Which cash flow numbers should you watch every week?
Keep it short enough that you’ll actually do it:
- Bank balance today against your minimum comfortable balance.
- Debtors over 30 days, by name.
- Next four weeks of known outgoings — wages, rent, loan repayments, BAS.
- Lowest projected balance in the next 13 weeks.
Our weekly money routine turns this into a 30-minute habit.
When the gap is timing, not trouble
Sometimes you do everything right and the maths still leaves a hole: a large contract that pays after delivery, a BAS quarter that lands on your quietest month, or a supplier offering a bulk discount you can’t quite fund. That’s where the right facility earns its place — a line of credit for recurring swings, or a property-secured loan for something larger.
Our lending team works with trading businesses on unsecured and cash-flow facilities typically from $5,000 to $500,000, and property-secured loans from $20,000 to $5,000,000. Enquiring doesn’t touch your credit file. Your details stay with one team rather than being passed down a line of lenders, and a real person calls to talk through the numbers with you. Give us accurate figures on the form — turnover, amount, what the money is for — and we can point you at the right option the first time.
Frequently asked questions
What is the quickest way to improve cash flow?
Usually, invoice faster and follow up sooner. Sending invoices the day the work is done, offering easy payment options and calling on the first overdue day can move money into your account weeks earlier without changing anything else in the business.
Is improving cash flow the same as improving profit?
No. Profit is what's left after costs over a period; cash flow is when the money actually arrives and leaves. A profitable business can still run short if customers pay slowly, stock ties up cash or a tax bill lands at the wrong time.
How much cash buffer should a small business keep?
There's no single rule, but many owners aim to hold enough to cover several weeks of fixed costs such as wages, rent and loan repayments. A 13-week forecast shows your own lowest point, which is a better guide than any rule of thumb.
Should I use finance to fix cash flow?
Finance can bridge a timing gap — for example, a big order that pays in 60 days — but it works best alongside the operational fixes, not instead of them. The right facility depends on your turnover, security and how long the gap lasts.
How often should I review cash flow?
Weekly is ideal for most small businesses. A 20-minute check of the bank balance, overdue invoices and the next few weeks of bills catches problems while there's still time to act.