What Is Working Capital?

Working capital is the difference between current assets (cash, receivables, inventory) and current liabilities (payables, short-term debt) — the financial cushion a business has to meet its day-to-day obligations. Positive working capital means you have more short-term resources than short-term obligations. Negative working capital means the reverse, and it can signal a cash crisis even if the business is profitable on paper. Profitability and liquidity are different things, and working capital measures liquidity.

The Formulas

What the Ratios Mean

• Current ratio above 2: strong — plenty of cushion; below 1 is a warning
• Quick ratio above 1: can cover short-term debts without selling inventory; below 1 means inventory dependency
• Cash ratio above 0.5: substantial cash position; rarely required above 1 in healthy businesses
• Some businesses (like subscription SaaS) operate with negative working capital by design — they collect cash upfront before delivering service

Worked Example

Cash $200,000, receivables $150,000, inventory $100,000, other assets $30,000 = current assets of $480,000. Payables $120,000, other liabilities $80,000 = current liabilities of $200,000. Working capital = $280,000. Current ratio = 2.4×, quick ratio = (480,000 − 100,000) ÷ 200,000 = 1.9× — both healthy. Even without selling inventory the business can cover its short-term obligations nearly twice over.

How to Improve Working Capital

• Speed up receivables — invoice faster, offer early payment discounts, tighten credit terms
• Extend payables — negotiate longer payment terms with suppliers without damaging relationships
• Reduce inventory — lean inventory management frees cash tied up in stock
• Secure a revolving credit line before you need it — banks lend when you don't need it, not when you do

Working Capital in Your Business Cycle

Working capital management is the art of minimising the time between paying for inputs and collecting cash from customers. Every day you can shorten that cycle is a day less capital tied up in the business — effectively free financing. The three levers are: collect receivables faster (invoice promptly, offer early-payment discounts, follow up immediately on late payers), turn inventory faster (lean stock management, better demand forecasting), and extend payables longer (negotiate with suppliers for 30–60–90 day terms). A business that masters all three can often fund its own growth without external capital, because the working capital cycle generates its own financing. Track your current and quick ratios monthly alongside your burn rate for a complete cash picture.

A revolving credit facility is the safety net every working-capital-constrained business should establish — and the key insight is to set it up before you need it. Banks extend credit to businesses with strong working capital ratios and healthy cash flow history; by the time working capital deteriorates and the credit is genuinely needed, it becomes much harder to secure. Review your working capital ratios quarterly as part of your financial reporting, and set internal thresholds — for example, a current ratio below 1.5 or a quick ratio below 1.0 — that trigger proactive action rather than reactive crisis management.

For startups and growth businesses, working capital pressure often intensifies precisely when things are going well: faster growth means more inventory, higher receivables, and bigger payroll — all of which consume cash before the corresponding revenue is collected. This is the counterintuitive cash trap that catches many otherwise successful businesses off guard. Raising a round or securing a credit facility before the growth-driven cash crunch hits — rather than in the middle of it — is one of the most important operational finance decisions a growing company can make. Monitoring working capital monthly and maintaining a 90-day cash forecast keeps you in control rather than reactive.

Frequently Asked Questions