What is Working Capital?
The capital tied up in day-to-day operations — current assets less current liabilities.
What is Working Capital?
Working capital is the difference between current assets and current liabilities, representing the funds an entity needs to finance its ordinary operating cycle. It measures short-term liquidity and operational efficiency simultaneously: too little working capital risks an inability to meet obligations, while too much signals idle funds earning no return. Working capital management is the discipline of holding the minimum level consistent with uninterrupted operations.
At a glance
Formula
Cycle components
Studied in
Think of it like…
Think of the fuel in a delivery van, not the van itself. The van is the fixed asset; the fuel is what makes today's deliveries happen. Carry too little and you stop mid-route; fill every spare container and you have tied up money in fuel that could have bought another route.
How Working Capital works
- Compute the operating cycle. Inventory holding period plus receivables collection period gives the gross operating cycle.
- Deduct the payables period. Subtracting the credit period enjoyed from suppliers gives the net operating cycle — the days that must be financed.
- Estimate the funding requirement. Apply the net cycle to the cost structure to determine how much capital must be committed to operations.
- Choose a financing policy. An aggressive policy funds more of the requirement with short-term sources — cheaper but riskier; a conservative policy does the opposite.
Net operating cycle in days
- 1Inventory holding period = 60 days
- 2Receivables collection period = 45 days
- 3Gross operating cycle = 60 + 45 = 105 days
- 4Payables period = 30 days
- 5Net operating cycle = 105 − 30 = 75 days to finance
Where it shows up
- Liquidity assessment. Current and quick ratios derive directly from working capital components.
- Bank finance appraisal. Lenders assess working capital requirement to size cash credit and overdraft limits.
- Receivables and inventory policy. Credit terms and stock levels are set by trading off holding cost against the risk of lost sales.
- Cash budgeting. Short-term cash forecasts are built from working capital movements rather than from profit.
Common mistakes
- Mixing days and turnover ratios within one operating cycle computation
- Assuming more working capital is always better — excess capital earns no return
- Ignoring the payables period and overstating the funding requirement
- Confusing profitability with liquidity; a profitable firm can still fail on cash
Related concepts
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Talk to usCan working capital be negative?
Yes, and for some business models it is normal. Retailers that sell for cash and buy on credit can operate with negative working capital, effectively financing operations from suppliers.
What is the difference between gross and net working capital?
Gross working capital refers to total current assets. Net working capital is current assets less current liabilities, which is the amount actually requiring long-term funding.
Why does a profitable company run out of cash?
Because profit is earned on accrual while cash is consumed by rising inventory and receivables. Rapid growth is a common cause of exactly this situation.
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