ACCA FM Working Capital Management Notes: Cash, Receivables and Overtrading

ACCA FM working capital management controls the short term cash cycle: cash held in inventory and receivables, speed of collection from customers, and payment terms agreed with suppliers. In addition, it sits in syllabus Section C of Financial Management, FM, under headings C1, C2 and C3: working capital, inventories, receivables, payables and cash, and funding strategy. Overall, the central tension is liquidity against profitability: cash held for safety earns little, while cash released for profit leaves less cover.

FM is a three hour computer based exam worth 100 marks, with a 50 percent pass mark. For example, the December 2026 session runs from 7 to 11 December 2026, with FM on Friday 11 December 2026 and results on 18 January 2027. Only 47 percent passed FM in September 2026. Therefore, this note gives definitions, ratios, two worked calculations, and exam traps. For the full ACCA revision set, start at the ACCA notes hub.

ACCA FM working capital: the core idea in one paragraph

Working capital is cash tied up in operations: inventory plus receivables minus payables. Too much lowers profit, because cash earns nothing in stock or unpaid invoices. Too little means the business cannot pay suppliers, loses sales, and risks failure even while profitable.

In short, net working capital is current assets minus current liabilities. Gross working capital is total current assets. C1 sets the frame: every sale, purchase and payment runs through working capital, so a profitable business can still fail if customers pay slowly and suppliers demand cash.

Ratios and the cash operating cycle

The current ratio is current assets divided by current liabilities. The quick ratio is current assets minus inventory, divided by current liabilities. For example, a ratio below 1.0 means short term liabilities exceed short term assets. A very high ratio can signal idle cash or slow inventory, not strength.

Next, the cash operating cycle, also called the working capital cycle, is the days between paying for inventory and collecting cash from the sale: inventory days plus receivables days minus payables days. Inventory days = average inventory / cost of sales x 365. Receivables days = average receivables / credit sales x 365. Payables days = average payables / credit purchases x 365.

Worked example: the cash operating cycle in numbers

Worked example 1: cash operating cycle and overtrading check. Cost of sales $1,825,000; credit sales $2,190,000; credit purchases $1,460,000; average inventory $250,000; average receivables $360,000; average payables $160,000. Inventory days = $250,000 / $1,825,000 x 365 = 50.0 days. Receivables days = $360,000 / $2,190,000 x 365 = 60.0 days. Payables days = $160,000 / $1,460,000 x 365 = 40.0 days. Cash operating cycle = 50.0 + 60.0 – 40.0 = 70.0 days.

As a result, daily cost of sales = $1,825,000 / 365 = $5,000 per day. Cash tied up = 70.0 x $5,000 = $350,000. If cost of sales rises by 25 percent, to $2,281,250, daily cost rises to $6,250 and cash tied up rises to $437,500, an extra $87,500 to fund.

For the overtrading check, current assets = $250,000 inventory + $360,000 receivables + $40,000 cash = $650,000. Current liabilities = $160,000 payables + $240,000 overdraft = $400,000. Net working capital = $650,000 – $400,000 = $250,000. Current ratio = $650,000 / $400,000 = 1.63. Quick ratio = ($650,000 – $250,000) / $400,000 = 1.00. Sales to net working capital = $2,190,000 / $250,000 = 8.76 times. A high sales to net working capital ratio, heavy overdraft use, and stretched payables point to overtrading, even when sales look strong.

ACCA FM working capital: inventories and the EOQ

Similarly, inventory policy balances two costs. Ordering costs fall when orders are larger and less frequent. Holding costs rise when more stock sits in the warehouse. The economic order quantity, EOQ, minimizes their sum: the square root of (2 x annual demand x ordering cost per order / holding cost per unit per year). Just in time, JIT, holds almost no stock and relies on fast, reliable supply, but risks stockouts.

Worked example 2: EOQ and total inventory cost. Annual demand 12,000 units; ordering cost $40 per order; holding cost $3 per unit per year; purchase price $10 per unit. EOQ = square root of (2 x 12,000 x $40 / $3) = square root of 320,000 = 565.7 units, rounded to 566 units per order.

Consequently, orders per year = 12,000 / 566 = 21.2 orders. Ordering cost = 12,000 / 566 x $40 = $848.06. Average inventory = 566 / 2 = 283 units. Holding cost = 283 x $3 = $849.00. Total relevant cost = $848.06 + $849.00 = $1,697.06. Purchase cost = 12,000 x $10 = $120,000. Total inventory cost = $120,000 + $1,697.06 = $121,697.06. Days between orders = 365 / 21.2 = 17.2 days. At the EOQ, ordering and holding costs are almost equal, which checks the calculation.

Finally, state the formula, substitute the numbers, and give the rounded order size. Recompute if any input changes. Take a bulk discount only if the saving exceeds the extra holding cost.

Receivables, payables and cash

First, receivables policy starts before the sale: assess creditworthiness, set a limit, agree terms, invoice promptly, and chase overdue accounts. An early settlement discount can speed collection, but compare it with the benefit of earlier cash and lower overdraft interest and collection cost. Factoring sells receivables for immediate cash, minus a fee and interest, and can include ledger administration and bad debt protection. Invoice discounting also raises cash against receivables, but the business keeps collection, so it is cheaper and less visible.

In contrast, payables policy is the mirror image. Use trade credit well, but do not stretch payment so far that suppliers withdraw discounts, raise prices, or stop supply. Take a supplier discount only if its annual cost is below the cost of alternative finance.

Meanwhile, cash is held for transactions, as a precaution, and for speculation. A cash flow forecast shows receipt and payment timing and the peak borrowing need. The Baumol model gives an optimal balance under steady cash use, with a fixed cost of raising cash and an opportunity cost of holding it. The Miller-Orr model allows for uncertain flows, setting upper and lower limits and a return point. Invest surplus cash short term in low risk, liquid assets.

ACCA FM working capital: funding strategies and overtrading

Third, C3 asks how much working capital to hold and fund. Permanent current assets are the base level needed. Fluctuating current assets rise and fall with sales. The matching principle funds permanent assets with long term finance and fluctuating assets with short term finance. An aggressive policy uses more short term finance: cheaper but riskier; a conservative policy uses more long term finance: costlier but safer.

However, overtrading is the failure mode to watch for. Sales grow fast, inventory and receivables grow with them, and the business funds growth by delaying suppliers and using an overdraft. Profit rises on paper while cash falls. The remedy is to slow growth, raise long term finance, tighten credit control, or inject equity.

Exam traps to avoid in FM

Confusing the two uses of Section C. Syllabus Section C is Working Capital Management. Exam Section C is the constructed response part: two 20 mark questions worth 40 marks, mainly from working capital management, investment appraisal and business finance.

Using the wrong flow in a days calculation. Inventory days use cost of sales, receivables days use credit sales, and payables days use credit purchases.

Forgetting to show workings in exam Section C. Those questions are manually marked, so state each assumption, show each substitution and label every result with units.

Recommending a discount on price alone. Always compare the full cost, including holding cost, finance cost and the discount itself.

Calling a high current ratio strong without comment. A high ratio can mean idle cash, slow receivables or obsolete inventory, and a low quick ratio beside it points at inventory.

Treating overtrading as a sales problem. It is a funding problem: growth without matching finance, so the answer must include a funding remedy.

In addition, investment appraisal sits beside working capital in exam Section C, so keep its methods fresh too. See the companion note on ACCA FM investment appraisal for net present value, internal rate of return and payback revision.

One-page revision box

Core conflict: liquidity against profitability. More is safer and less profitable; less is more profitable and riskier.

Net working capital: current assets minus current liabilities. Cash operating cycle: inventory days plus receivables days minus payables days.

Ratios: current ratio is current assets divided by current liabilities. Quick ratio excludes inventory. A high sales to net working capital ratio flags overtrading.

EOQ: square root of 2 times annual demand times ordering cost, divided by holding cost per unit. At the EOQ, ordering cost equals holding cost.

Receivables: assess credit, set limits, chase promptly, test every discount by its annual cost. Factoring gives cash plus administration. Invoice discounting keeps collection in house.

Cash: Baumol for steady use, Miller-Orr for uncertain flows, forecast to find the peak need, invest surplus short term.

Funding: match finance life to asset life. Aggressive is cheap and risky. Conservative is costly and safe. Overtrading is growth without matching finance.

Exam: syllabus Section C is the topic; exam Section C is two 20 mark questions, 40 marks of 100, pass mark 50 percent. Show every working.

Ultimately, ACCA FM working capital rewards method, not memory. Work the two examples from scratch, then change one input and recompute. For the full ACCA revision set, return to the ACCA notes hub.