Profit is an opinion. Cash is a fact. The cash conversion cycle (CCC) is the single number that explains why a profitable business can still run out of cash — and where to look first when cash flow tightens.
This article works through the formula, the three components, the four levers that actually move the cycle inside an Australian SME, and the spreadsheet model we use to track it monthly with Growth and Scale clients.
The formula
CCC = DSO + DIO − DPO
Days Sales Outstanding + Days Inventory On-hand − Days Payable Outstanding
In plain English: how many days between paying for an input and getting paid for the output. A 60-day cycle means every dollar of revenue requires roughly $1 × (60/365) of working capital tied up in receivables and inventory minus payables. For a $5M revenue business with a 60-day cycle, that's ~$820K of working capital sitting in the operating cycle at any given time.
Cut the cycle in half and you halve the working capital requirement — without selling another dollar.
The three components, plain English
DSO — Days Sales Outstanding
How long it takes you to collect from customers, on average.
Formula: Accounts Receivable ÷ Revenue × 365.
A 45-day DSO means customers take 45 days, on average, to pay you. Net-30 terms with no late payers would give you a DSO around 35–40 (because of invoicing lag and end-of-month batching). DSO above 60 days on net-30 terms means your customers are systematically paying late.
DSO compounds: if your DSO is 60 days and you grow revenue by 20%, your receivables grow by 20% too — meaning the cash required to fund growth scales linearly with the cycle length.
DIO — Days Inventory On-hand
How long inventory sits before being sold, on average.
Formula: Inventory ÷ COGS × 365.
A retailer might run at DIO of 60–90 days; a wholesaler 30–45; a manufacturer with long lead times 90–180. DIO of zero is the goal for service businesses (no inventory) and for just-in-time supply chains.
Slow-moving stock distorts this average. The headline DIO might be 60 days, but a chunk of the inventory has been sitting for 9 months and is essentially dead. The headline number hides the problem.
DPO — Days Payable Outstanding
How long you take to pay suppliers, on average.
Formula: Accounts Payable ÷ COGS × 365.
DPO is the only component that helps your cycle when it's longer. Stretching DPO from 30 to 45 days frees up working capital equivalent to 15 days of COGS. The trade-off: supplier relationships, early-payment discounts forgone, and the risk of being put on COD terms if you push too hard.
Why this number matters more than EBITDA
Two businesses with identical revenue and EBITDA can have wildly different cash positions depending on their cycle:
- Business A: $5M revenue, $1M EBITDA, 60-day CCC. Working capital tied up ≈ $820K. Cash on hand at peak ≈ $180K. Tight.
- Business B: $5M revenue, $1M EBITDA, 30-day CCC. Working capital tied up ≈ $410K. Cash on hand at peak ≈ $590K. Comfortable.
Same P&L. Different bank balance. Different ability to fund growth, weather a slow quarter, or take a discount on supplier payments. The CCC explains the gap.
At sale time, the difference is bigger again: a buyer pays for the EBITDA, but they also leave the “normal” working capital in the business. Business B requires the buyer to inject less cash, which means a cleaner deal and a higher effective price. See our preparing-for-sale article for why working capital benchmarking matters during diligence.
The four levers — what actually moves the cycle
Lever 1 — Tighten DSO (the highest-impact lever)
DSO improvements usually deliver the fastest cash flow gain because most businesses haven't actively managed receivables. Practical actions, in order of impact:
- Invoice on completion, not month-end. If your work finishes on day 5 of the month and you bill on day 30, you've added 25 days to your DSO before the customer has even seen the invoice.
- Shorten payment terms. Net-30 is industry standard for most B2B; some industries are pushing to net-14. Talk to new customers about your terms before you start work.
- Late fees that you actually enforce. A 1.5%/month late fee that you collect is a real lever; one that sits in the small print is decorative. Enforce on the second late payment, not the tenth.
- Direct debit by default. For recurring services (retainers, subscriptions, ongoing engagements), direct debit removes DSO entirely. Set it up at the start of the relationship.
- Automated reminders before due, on due, and after due. Most accounting software (Xero, MYOB, QuickBooks) supports this. Set it up once.
- Call, don't email, anything in 60+ days. A call from the business owner moves invoices that emails never will.
Lever 2 — Reduce DIO
Only relevant for businesses carrying stock. The levers:
- Smaller order quantities, more frequent. Trade volume discount for cash flow. The maths usually favours cash flow for businesses near their credit limit.
- Just-in-time where supply chain permits. Risk: a supply disruption stops your sales. Reward: lower DIO. Decision depends on your supplier risk profile.
- Liquidate slow-moving stock. It's tying up working capital and losing value with every passing month. Discount it, sell it, or write it off — the cash is more useful than the asset.
- Drop-shipping for long-tail SKUs. Pass the inventory holding cost to the supplier. Works for selected product categories.
- Inventory aging reports, monthly. Any SKU over 90 days needs an action — discount, return to supplier, write off. Don't leave it on the books quietly.
Lever 3 — Extend DPO (carefully)
Push supplier payment terms longer to free up working capital. Three things to watch:
- Early-payment discounts. A 2/10 net 30 discount (2% if you pay in 10 days, otherwise net 30) is equivalent to an annualised return of ~37%. Almost always worth taking — your cost of capital is materially lower than that.
- Supplier relationships. Stretched payment terms damage trust. The supplier you stretch today is the supplier who refuses you priority on a stock-out next quarter.
- Negotiate, don't unilateral. Asking for net-45 instead of net-30 in exchange for committing to a higher annual spend is a conversation. Just paying 15 days late is a black mark on your credit file.
Lever 4 — Pre-payment / deposit (the most powerful lever)
Collect before you deliver. The most powerful lever because it can drive DSO to zero or negative. Models:
- Subscription / retainer. Monthly or annual upfront payment. Standard for SaaS, consulting, professional services.
- Deposits on order. 30–50% on order, balance on delivery. Standard for custom manufacturing, large project work, construction.
- Annual prepayment with discount. Offer 5–10% off for annual prepayment vs monthly. Improves DSO dramatically and locks in revenue.
- Stage gates with payment milestones. Don't start phase 2 until phase 1 is paid. Discipline the project to discipline the cash.
Not every business model can do this. But where it works, it transforms working capital requirements. A SaaS business with annual prepayment has negative DSO (cash arrives before the service is delivered) and effectively self-funds growth.
A worked example — manufacturing SME
Greenways Engineering (illustrative): $8M revenue, $1.2M EBITDA, manufacturer of industrial equipment.
- Average AR: $1.4M. Revenue: $8M. DSO = 1.4 ÷ 8 × 365 = 64 days.
- Average inventory: $1.0M. COGS: $5.5M. DIO = 1.0 ÷ 5.5 × 365 = 66 days.
- Average AP: $700K. COGS: $5.5M. DPO = 0.7 ÷ 5.5 × 365 = 46 days.
- CCC = 64 + 66 − 46 = 84 days.
- Working capital tied up: ($1.4M + $1.0M − $0.7M) = $1.7M.
Target: bring CCC from 84 to 60 days. Levers identified:
- DSO 64 → 50 (tighten terms + direct debit for repeat customers): frees ~$300K.
- DIO 66 → 50 (liquidate dead stock + cycle counts): frees ~$240K.
- DPO 46 → 56 (negotiate longer terms with two largest suppliers): frees ~$150K.
- Total cash freed: ~$690K — funds half a million of growth investment without bank debt, or pays down the overdraft, or both.
This isn't a hypothetical. We've seen working-capital improvements at this scale on clients who'd never explicitly measured their CCC before.
How to track it monthly
The reports you need (covered in our five financial reports article):
- P&L for the revenue and COGS denominators
- Balance Sheet for AR, inventory, AP balances
- Aged Debtors and Aged Creditors for the detail behind the averages
Calculate DSO, DIO, DPO monthly. Plot the 12-month trend. Watch for inflection points — a 5-day jump in DSO over two months is signalling a collection problem before the cash flow statement makes it obvious.
On Growth and Scale plans, we report CCC monthly alongside the standard P&L and Balance Sheet, with the trend over 12 months. When it moves, we know which lever moved before the cash position starts to feel it.
Where the cash conversion cycle connects to the rest of the business
- Pricing decisions. A break-even unit price assumes timely payment. If your DSO is 90 days, the break-even price effectively rises by your cost of capital × 90 days of revenue. Use our break-even calculatoralongside the CCC to see the full picture.
- Hiring decisions. Adding salaried staff increases payroll-cycle outflows (and from 1 July 2026, super payments shift to per-payday — see our Payday Super impact calculator). A hire is a fixed cost on the new working-capital line.
- Growth funding. Growth requires working capital. A business funding growth from cash needs a tight CCC; one funded from bank debt or investor capital can carry a longer cycle. Don't plan growth without modelling the cash requirement.
On Growth and Scale plans, we report CCC monthly alongside the standard P&L and Balance Sheet, with the trend over 12 months. When it moves, we know which lever moved before the cash position starts to feel it.
Where to start
Calculate your current DSO, DIO, DPO and CCC from your most recent Balance Sheet and P&L. If the cycle is longer than you'd like, the discovery call is the right place to map the levers against your specific business model. Most businesses we've worked with can compress their cycle by 15–25 days within 6 months of starting to measure it actively.
This information is general in nature and does not constitute personal financial or tax advice. Please contact us to discuss your individual circumstances. Tax laws are subject to change; information on this page reflects legislation in effect as of June 2026.