Answers / Financial Due Diligence
What is negative working capital?
A core Financial Due Diligence interview question — asked in analyst and associate interviews across IB, PE, and the Big 4.
THE SHORT ANSWER
Negative working capital means current operating liabilities exceed current operating assets — customers pay before the company must pay its suppliers, so the operating cycle finances itself. For business models built on prepayments or subscriptions — retail, SaaS, airlines — it is a structural strength: growth releases cash instead of absorbing it. In diligence the question is whether it is structural or manufactured: stretched payables, aggressively collected receivables or run-down inventory ahead of completion also produce 'negative working capital', but those effects reverse after close. That distinction drives the NWC peg and, ultimately, the equity price.
WHAT INTERVIEWERS LISTEN FOR
- ✓Operating current liabilities > operating current assets — the cycle self-funds
- ✓Structural in prepayment/subscription models — growth releases cash
- ✓Diligence test: structural vs. window-dressed (payables stretch, AR acceleration, inventory run-down)
- ✓Direct consequence for the NWC peg and completion mechanism
COMMON MISTAKES
- ✗Treating negative working capital as automatically a distress signal
- ✗Missing pre-completion manipulation that reverses after close
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