Cash Conversion Cycle: 60 Days (Receive Payment After 30 Days, Pay Supplier in 7) = Burn
Restaurant: holds inventory 5 days (perishable goods), collects payment 30 days average (B2B catering), pays suppliers 7 days. CCC = 5 + 30 - 7 = 28 days. Working capital needed: 28 days × average daily COGS SGD 1K = SGD 28K. Optimization: reduce inventory to 3 days (just-in-time), collect in 15 days (earlier invoicing), extend supplier payment to 14 days. New CCC = 3 + 15 - 14 = 4 days. Working capital needed: SGD 4K (freed SGD 24K). Opportunity: invest SGD 24K in growth (marketing, expansion).
- Understanding CCC
- Optimizing Each Component
- Industry Variations
- AskBiz CCC Optimization
- Calculating Each CCC Component From Your Own Books
Understanding CCC#
CCC = Days Inventory Outstanding (DIO) + Days Sales Outstanding (DSO) - Days Payable Outstanding (DPO). DIO: how long goods sit in inventory before sold. DSO: how long until customer pays. DPO: how long until you pay supplier. CCC = negative (good) or positive (bad, eats working capital).
Optimizing Each Component#
(1) DIO: reduce by faster inventory turnover (better forecasting, dropshipping, just-in-time). (2) DSO: reduce by faster payment collection (early discounts, stricter terms, automated reminders). (3) DPO: increase by negotiating longer payment terms with suppliers (30-60 days vs 7 days). Net: shorter CCC = less working capital needed.
Industry Variations#
Retail (Costco): negative CCC (sell first, pay later). Sells goods, collects in 1 day (cash), pays suppliers in 30 days. CCC = very short (cash flow positive). Restaurant: positive CCC (must fund inventory + receivables upfront). Manufacturer: longer CCC (inventory days high, receivables if B2B).
AskBiz CCC Optimization#
Calculates current CCC, suggests improvements. "Current CCC: 28 days, working capital SGD 28K. DIO 5 days (industry avg 3), DSO 30 days (industry avg 20), DPO 7 days (negotiate to 14). Improvement targets: DIO 3 (-2 days), DSO 20 (-10 days), DPO 14 (+7 days). New CCC: 9 days (77% reduction). Working capital freed: SGD 19K (freed from CCC optimization alone)."
Calculating Each CCC Component From Your Own Books#
DIO = (Average Inventory ÷ COGS) × 365. If average inventory value is SGD 15K and annual COGS is SGD 1.1M, DIO = (15,000 ÷ 1,100,000) × 365 = 5 days. DSO = (Average Accounts Receivable ÷ Annual Revenue) × 365 — if average receivables are SGD 120K against SGD 1.46M annual revenue, DSO = (120,000 ÷ 1,460,000) × 365 = 30 days. DPO = (Average Accounts Payable ÷ Annual COGS) × 365 — SGD 21K average payables against SGD 1.1M COGS gives DPO = 7 days. Pull these three averages from your balance sheet and P&L (or your POS/accounting system if it tracks them), and the CCC calculation becomes a five-minute exercise rather than a rough estimate. Recalculate quarterly, since DSO in particular can drift upward gradually as a few large customers slip into slower payment habits without anyone noticing month to month.
Worked Example: Freeing SGD 24K Without Borrowing a Cent#
A UK catering supply business had CCC = 28 days (DIO 5, DSO 30, DPO 7), tying up SGD 28K in working capital funded by an overdraft costing 8% annually — roughly SGD 2,240/year in interest. Three changes: (1) switching from monthly to weekly invoicing for B2B customers plus a 2% early-payment discount for payment within 10 days, which pulled DSO down to 18 days over two quarters. (2) Negotiating with the two largest suppliers for 21-day payment terms in exchange for committing to a 12-month volume contract, lifting DPO from 7 to 18 days. (3) Tightening perishable stock ordering to twice-weekly deliveries instead of weekly, cutting DIO from 5 to 3 days. New CCC = 3 + 18 − 18 = 3 days, a working capital requirement of roughly SGD 3K instead of SGD 28K — freeing SGD 25K that paid off the overdraft entirely and left headroom for a new delivery van purchase without additional financing.
Common Mistakes When Trying to Shorten CCC#
The first mistake is pushing DPO too aggressively and damaging supplier relationships — stretching payment terms without agreement, or paying consistently late, can result in suppliers demanding upfront payment or cash-on-delivery, which reverses your CCC gains entirely and worse. Negotiate DPO extensions explicitly and formally, don't just pay later unilaterally. The second mistake is cutting DIO so aggressively that you start stocking out, trading a working-capital problem for a lost-sales problem that's usually more expensive. The third is offering early-payment discounts that cost more than the working capital benefit — a 2% discount for 20 days faster payment is roughly equivalent to a 36% annualised financing cost, which only makes sense if your alternative cost of capital (overdraft, credit line) is similarly high. AskBiz tracks DIO, DSO, and DPO continuously from live transaction data so CCC drift gets caught in the month it happens, not discovered at year-end when the cash squeeze has already bitten.
People also ask
Can CCC ever be negative?
Yes. Retail: sell inventory for cash (collect immediately), pay suppliers 30 days later. CCC = negative. You have cash before paying for goods. Amazon is extreme: 40-day negative CCC (huge working capital advantage).
How do I negotiate longer DPO?
Prove reliability: pay on time every month. Ask suppliers: "I can commit to SGD 100K/year spend if you offer 30-day terms." Most suppliers prefer stable, large customers over hassle of small, frequent orders.
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