The problem: EBITDA can rise while operating cash flow falls because profitability and cash generation move to different rhythms — working capital and capex often explain the gap.
EBITDA rising while operating cash flow declines confuses many analysts. The two measures look similar but answer different questions: EBITDA approximates operating profitability before non-cash items, while operating cash flow tracks actual cash moving through the business.
Why It Matters
Investors and lenders who read profitability without checking cash conversion can misjudge a company’s health. A business can look profitable on EBITDA while quietly consuming cash.
What Drives the Divergence
- Receivables growth: when sales grow faster than collections, revenue lifts EBITDA but cash is tied up in unpaid invoices.
- Inventory build-up: stockpiling inventory absorbs cash without affecting EBITDA, depressing operating cash flow.
- Payables timing: slowing payments to suppliers temporarily boosts cash, while faster payments reduce it — without changing EBITDA.
- Non-cash income: gains reclassified into EBITDA may not produce cash.
- Capex: heavy capital expenditure reduces free cash flow even when EBITDA is strong, though it sits below operating cash flow in the broader cash story.
Worked Example
A company reports EBITDA up 12% as revenue grows 15%, but receivable days stretch from 45 to 60 and inventory rises sharply. Operating cash flow falls because cash is locked in working capital, not lost in operations.
| Metric | Last year | This year |
|---|---|---|
| Revenue growth | 8% | 15% |
| EBITDA growth | 6% | 12% |
| Receivable days | 45 | 60 |
| Operating cash flow | Positive | Declined |
Key Takeaway
Always bridge EBITDA to operating cash flow through working-capital movements — the gap reveals whether growth is generating cash or merely inflating the balance sheet.