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If the difference between revenue and cash in the bank still feels fuzzy, a short visual walkthrough makes it click faster than any spreadsheet. This one keeps it plain for founders without a finance background: revenue is what you have earned on paper, cash flow is what has actually moved through your account. That single distinction is what stops the confusion in the question.
Cash Flow vs. Profit: What's the Difference?
On Harvard Business School Online (YouTube) by HBS Online Short explainer video, a few minutes
- Revenue is booked when you deliver, not when the customer pays, so a profitable month can still leave your account empty.
- Cash flow tracks the timing of money in and money out, which is what really keeps the lights on.
- A business can be profitable and still run out of cash if payments arrive late.
