Working Capital: Formula, Interpretation, and Examples
Definition
Working Capital is the difference between a company's current assets and current liabilities. It measures a company's short-term liquidity and ability to meet its day-to-day operational obligations.
How It Works
Working capital is calculated from the balance sheet by subtracting current liabilities from current assets. Current assets include cash, accounts receivable, inventory, and prepaid expenses. Current liabilities include accounts payable, accrued expenses, short-term debt, and the current portion of long-term debt. Positive working capital means the company has enough current assets to cover its short-term obligations. Negative working capital means current liabilities exceed current assets, which can signal liquidity problems — though some industries (like grocery retail) intentionally operate with negative working capital due to rapid inventory turnover.
Formula
Working Capital = Current Assets − Current Liabilities
Example
Company A has current assets of $500,000 (Cash $100K, AR $200K, Inventory $150K, Prepaid $50K) and current liabilities of $300,000 (AP $180K, Accrued Expenses $70K, Current Debt $50K). Working Capital = $500,000 − $300,000 = $200,000. The current ratio = $500,000 / $300,000 = 1.67, meaning the company has $1.67 of current assets for every $1 of current liabilities.
Common Misconceptions
- ✗More working capital is always better — excessive working capital can mean the company is hoarding cash, carrying too much inventory, or not collecting receivables efficiently. There's an optimal range.
- ✗Negative working capital always means trouble — some highly efficient businesses (like Amazon or Walmart) intentionally maintain negative working capital because they collect from customers before paying suppliers.
- ✗Working capital and cash are the same — working capital includes non-cash current assets like inventory and receivables. A company can have positive working capital but low cash if its assets are tied up in inventory.
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Common questions about Working Capital
A current ratio between 1.5 and 2.0 is generally considered healthy for most industries. Below 1.0 may indicate liquidity problems. Above 3.0 may indicate inefficient use of assets. The ideal ratio varies by industry.
Increases in working capital use cash (buying more inventory, extending more credit to customers). Decreases in working capital free up cash (collecting receivables faster, negotiating longer payment terms with suppliers). Changes in working capital are a key component of operating cash flow.
The working capital cycle (or cash conversion cycle) measures the time between paying for inventory and collecting cash from customers. It equals Days Inventory Outstanding + Days Sales Outstanding − Days Payable Outstanding. A shorter cycle means faster cash conversion.