BUSINESS MECHANICS
What Is Working Capital?
Working capital is current assets minus current liabilities—the short-term cushion a business uses to fund day-to-day operations.
Why It Matters
Working capital is where profit and cash often diverge. Changes in receivables, inventory, and payables explain why a growing company can feel cash-tight even when earnings look solid.
The core formula
Examples of current assets: cash, receivables, inventory. Examples of current liabilities: payables, accrued expenses, short-term debt.
Short Explanation
Working capital is operational liquidity: money tied up in the short cycle of buying, selling, and collecting. The cash flow statement often tells the story of how working capital moved during a period.
How Working Capital Works
When sales grow on credit, receivables can rise before cash arrives. When you stock more inventory, cash is committed upfront. Both reduce near-term cash even if profit is healthy.
Payables can work the other way temporarily: owing suppliers more can free cash in the short run—but only if the underlying economics are sound.
Analysts watch working capital trends alongside growth. A sudden spike in receivables or inventory without a clear business reason deserves a closer look.
Watch the Short Explanation
Related Concepts
Frequently Asked Questions
- Is more working capital always better?
- Not necessarily. Too much can mean idle cash or slow collections. Too little can mean liquidity stress. The right level depends on the business model and volatility.
- How is working capital different from cash?
- Cash is one current asset. Working capital is the net of all short-term assets and short-term obligations—so it includes receivables, inventory, and payables too.
- Why does working capital affect cash flow?
- When receivables or inventory rise, cash is often tied up. When payables rise, cash can be preserved temporarily. Those swings show up clearly on the cash flow statement.
Understand how these concepts connect
Compound School is a structured system for understanding accounting, finance, and business mechanics from first principles.