Net working capital, sometimes called operating working capital, refines the standard working capital calculation by stripping out non-operating items from both sides of the equation. Specifically, it removes cash and cash equivalents from current assets and removes short-term debt from current liabilities. What remains is a measure of the capital tied up in the company's core operating cycle — receivables, inventory, and prepaid assets on one side, and trade payables and accrued expenses on the other.
The reason for these exclusions is that cash on the balance sheet is a treasury management decision, not an operating requirement, and short-term debt is a financing choice, not an operating obligation in the same way that accounts payable is. By removing both, net working capital gives a cleaner picture of how much capital the business needs to fund its day-to-day operations.
Rising net working capital relative to revenue can signal that the company is tying up more capital in operations — perhaps collecting receivables more slowly, building inventory faster than it can sell, or losing leverage with suppliers. Declining net working capital relative to revenue may indicate improving efficiency or, less positively, that the company is stretching its payables to conserve cash.
