Working capital

Working capital is the finance available for the day-to-day running of a business, calculated as current assets minus current liabilities.

Capital expenditure is spending on non-current (fixed) assets such as machinery or premises that provide a benefit over several years, whereas revenue expenditure is spending on day-to-day running costs such as wages, rent and raw materials that are used up within the period. For example, buying a delivery van is capital expenditure, but paying the driver's wages is revenue expenditure — the van lasts for years while the wages are an ongoing cost.

The first way is to collect trade receivables faster. By invoicing promptly, chasing late payers and offering cash discounts for early payment, the business turns money owed by customers into cash sooner, increasing its current assets and improving liquidity. The trade-off is that discounts reduce revenue and being too strict could lose customers.

The second way is to manage trade payables sensibly by taking the full credit period suppliers offer and negotiating longer terms. This keeps cash in the business for longer, easing day-to-day finance, although paying too late risks damaging supplier relationships or losing discounts.

Together, collecting receivables faster and paying payables later shorten the working-capital cycle and keep more cash in the business, provided customer and supplier relationships are not harmed.

Working capital — current assets minus current liabilities — is the liquid finance a manufacturer uses to run day to day, and it is important for several reasons.

First, it allows the firm to pay its short-term obligations on time: wages to keep production going, suppliers for raw materials, and bills such as rent and utilities. A manufacturer typically has a long working-capital cycle — it pays for materials and labour well before finished goods are sold and customers pay — so it needs enough working capital to bridge that gap. Without it, production could stop because suppliers withhold materials or staff go unpaid, and the firm risks insolvency even if it is profitable.

However, the importance of working capital is about balance, not maximisation. Holding too much ties up cash in idle stock and uncollected receivables that could instead fund investment or reduce borrowing costs, which is inefficient. So the firm must hold enough to stay liquid through its cycle without over-investing in current assets.

Therefore working capital is critical for survival in a manufacturing business because of its long cash cycle, but its importance lies in managing it at the right level — enough to meet obligations reliably, without wasting resources on excessive current assets.

A growing business often ties up more and more cash in extra stock and customer credit, so improving working capital matters greatly. Several actions are available, each with benefits and drawbacks.

The firm could speed up trade receivables — invoicing promptly, chasing late payers and offering cash discounts. This brings cash in faster and improves liquidity quickly, which is valuable for a growing firm. However, discounts reduce revenue and aggressive collection could push customers to competitors. It could also delay trade payables by taking the full credit period and negotiating longer terms, keeping cash longer at no interest cost — but paying too late risks losing supplier goodwill, discounts, or supply itself. Better inventory control (e.g. holding less stock, just-in-time) frees cash tied up in materials, though it raises the risk of stock-outs that disrupt production during rapid growth. Finally, it could arrange an overdraft or short-term loan for quick relief, but this adds interest costs and only treats the symptom.

Judgement. For a growing business, the most sustainable actions are those that shorten the working-capital cycle — faster receivables collection and tighter inventory control — because the underlying problem is that growth lengthens the cycle (overtrading). Delaying payables and using an overdraft are useful short-term fixes but risk supplier relations and add cost if relied on. The best approach is therefore a combination: improve receivables and inventory management to fix the structural problem, supported by carefully managed supplier credit, while avoiding over-reliance on expensive borrowing. The right mix depends on the firm's relationships and how fast it is growing — but tackling the cycle itself is more effective than borrowing to plug the gap.

Working-capital management concerns the liquid finance a business uses day to day (current assets minus current liabilities), while profitability is whether revenue exceeds costs over time. Both affect survival, but their relative importance depends on the time horizon and the firm's situation.

The case that working-capital management is more important for survival. Survival in the short run depends on liquidity, not profit. A business must pay wages, suppliers and bills the day they fall due, and only liquid working capital can do this. A firm with poor working-capital management can run out of cash and be forced into insolvency and liquidation even while it is profitable — this is exactly what happens to fast-growing firms that overtrade. Because creditors can force closure the moment debts go unpaid, managing working capital is what keeps the doors open in the immediate term, which is why it can be said to matter more for survival than profit.

The case that profitability is more important. In the longer term, no amount of working-capital management can save a business that is consistently unprofitable. Losses steadily drain current assets, so working capital itself shrinks over time — poor profitability eventually destroys liquidity. Profit is also what attracts the finance (loans, investment) needed to maintain working capital, and it funds reinvestment and rewards owners. A business that survives day to day but never makes a profit has no long-term future, so profitability is the deeper determinant of survival.

Weighing it up (criterion). The relative importance depends on the time horizon and whether the threat is liquidity or viability. In the short run, and for firms facing a cash crisis (new, fast-growing or seasonal businesses), working-capital management is more important because it prevents immediate insolvency. In the long run, and for the business to be worth running at all, profitability is more important because it sustains both liquidity and the firm's future.

Judgement. Good working-capital management is more important for short-term survival, while profitability is more important for long-term survival. The most defensible conclusion is that the two are interdependent: profitability eventually replenishes working capital, and working capital keeps a profitable firm alive long enough to realise that profit. So working-capital management is more important when a firm is facing an immediate cash crisis, but a business needs both to survive over time — it cannot trade its way to safety with liquidity alone if it never makes a profit. Claiming one is always more important oversimplifies the link between them.