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Comparison · Cash Flow

Working Capital vs Cash: Read Both Measures

Compare net working capital with usable cash and see why receivables and inventory cannot automatically cover tomorrow's payments.

By PriceAndProfit Editorial Updated

Net working capital is current assets minus current liabilities. Cash is one component of current assets. A positive working-capital balance can therefore coexist with a small bank balance when much of the asset total sits in customer invoices or inventory. The two measures answer related questions, but they are not interchangeable measures of money available today.

Net working capital = current assets − current liabilities

Build a balance-sheet snapshot

Assume a hypothetical business has $8,000 of cash, $22,000 of customer receivables, $30,000 of inventory, and no other current assets. Current assets total $60,000. Accounts payable and other current liabilities total $35,000. Net working capital is $25,000, while cash is only $8,000. Inventory and receivables account for the other $52,000 of current assets.

MeasureCalculationAmount
Current assets $8,000 + $22,000 + $30,000 $60,000
Current liabilities Entered balances $35,000
Net working capital $60,000 − $35,000 $25,000
Cash available in this simplified example Cash balance $8,000

If $12,000 of bills are due tomorrow and no receipt arrives first, the immediate cash gap is $4,000 despite positive net working capital. The timing of the other $23,000 of current liabilities also matters, but it does not change tomorrow's arithmetic. Do not subtract all current liabilities from cash and call the result the bank balance.

Trace transactions that move one measure differently

Collecting $5,000 from an existing invoice increases cash to $13,000 and reduces receivables to $17,000. Current assets and net working capital stay unchanged. The business has improved its ability to make immediate payments without creating new revenue or new profit from that collection.

Paying $4,000 of an existing vendor payable reduces cash and current liabilities by the same amount. Net working capital again stays unchanged, although the bank balance falls. Buying $6,000 of inventory for cash changes the composition of current assets, while buying it on account increases both current assets and current liabilities. These movements show why the net total alone cannot explain day-to-day liquidity.

Pair the snapshot with a dated schedule

Reconcile the balances to the accounting records, then attach expected receipt dates to receivables and payment dates to liabilities. Inventory needs a sales and collection assumption before it becomes cash. Slow-moving or damaged stock should not be assumed to convert at book value on demand.

Define whether the working-capital measure includes every current balance or a narrower operating set. An operating worksheet may use receivables plus inventory minus trade payables; label it that way rather than calling it total net working capital. This page uses a simplified business balance sheet and does not assess lending, investment value, or a required liquidity target.

Net working capital

  • Measures: Current assets less current liabilities at a point in time.
  • Limitation: Assets may require collection or sale before they become cash.

Cash

  • Measures: The cash balance available under the stated scope.
  • Limitation: A balance alone does not show future obligations or establish profitability.
Bottom line

Use the balance-sheet measure alongside a dated cash forecast; neither substitutes for the other.

Method references: OpenStax: What Is Working Capital?. Accessed October 22, 2026. All dollar figures are hypothetical worked examples.

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