Working Capital

What is Working Capital?

Working capital is a standard accounting measure calculated by subtracting current liabilities from current assets. Current assets commonly include cash and cash equivalents, receivables, inventory, and certain prepaid or short-term items. Current liabilities commonly include accounts payable, accrued liabilities, short-term debt, and other amounts due within the applicable operating or reporting period.

The calculation is a snapshot, not a cash-flow forecast. Two businesses can report the same working capital while having very different liquidity. One may hold mostly cash and readily collectible receivables; another may hold slow-moving inventory and disputed receivables while facing near-term payroll, supplier, or debt payments.

Positive working capital is not universally healthy, and negative working capital is not universally unhealthy. Business model, operating cycle, collection speed, inventory requirements, supplier terms, seasonality, financing structure, and composition all affect interpretation.

Working capital versus cash and liquidity

Cash balance is one asset. Liquidity describes the ability to meet obligations as they become due. Working capital includes non-cash assets and liabilities whose timing and convertibility can vary. Use the balance-sheet measure and the dated cash plan together rather than substituting one for the other.

Working capital versus True Cash Position and runway

True Cash Position is a RunwayCal-defined planning metric that keeps supported cash and recorded obligation context visible under product rules. Runway is a modeled duration or path. Neither is the same as current assets minus current liabilities, and none should be used as a replacement label for another.

What changes the interpretation?

• Receivables

  Amount, aging, collectibility, disputes, credit notes, and expected receipt dates matter.

• Inventory

  Demand, condition, throughput, seasonality, and the time required to convert stock into customer cash matter.

• Payables and accruals

  Supplier terms, tax dates, payroll, debt, and other due dates determine near-term pressure.

• Operating cycle

  Some models collect customer cash before paying suppliers; others fund production or delivery well in advance.

Why it matters

Working capital connects operating decisions with the balance sheet. Growth can increase receivables and inventory before the related customer cash arrives, while supplier and payroll obligations continue on their own schedules.

Reviewing the composition and movement can reveal whether expansion is consuming cash, collections are slowing, inventory is building, or supplier terms are carrying part of the operating cycle.

Standard net working capital formula

• Current assets under the applicable accounting policy
• Current liabilities under the applicable accounting policy
• A consistent reporting date and classification basis
• Receivable, inventory, payable, and cash-timing context for interpretation

Standard net working capital formula

Working capital = Current assets − Current liabilities

Illustrative balance-sheet example

How RunwayCal helps

Common mistakes

• 1Defining working capital as cash or liquid assets available to spend.
• 2Calling every positive balance healthy or every negative balance dangerous without business-model context.
• 3Using a coverage multiple without defining a separate ratio and denominator.
• 4Ignoring receivable quality, inventory conversion, restrictions, and due-date timing.
• 5Using working capital, True Cash Position, liquidity, and runway as interchangeable labels.