Cash Flow Statement
A financial statement that tracks the actual movement of cash in and out of a business over a period, organized by operating, investing, and financing activities.

What is Cash Flow Statement?
The cash flow statement shows where your cash came from and where it went during a specific period. Unlike the P&L (which can include non-cash items like depreciation), the cash flow statement tracks actual money movement.
It's organized into three sections: operating activities (cash from running the business), investing activities (cash spent on or received from assets), and financing activities (cash from fundraising or debt).
For startups, the cash flow statement often reveals a different story than the P&L. You might show revenue on the P&L that hasn't been collected yet, or expenses that were prepaid. The cash flow statement shows the actual cash reality.
Why it matters
Cash is survival. The cash flow statement tells you whether your cash position is improving or deteriorating — and why. A company can be "profitable" on a P&L but still run out of cash if customers pay slowly.
For runway management, the cash flow statement is the most relevant financial statement because it directly measures cash depletion, which is what determines your runway.
Formula
Net Cash Flow = Operating Cash Flow + Investing Cash Flow + Financing Cash Flow Ending Cash = Beginning Cash + Net Cash Flow
Example
Q1 Cash Flow Statement: Operating activities: -$180,000 (negative because expenses > revenue). Financing activities: +$500,000 (seed round closed in February). Investing activities: -$5,000 (equipment purchases). Net cash flow = +$315,000. Ending cash = Starting cash + $315,000.
How RunwayCal helps
RunwayCal generates a cash flow statement on the Financial Statements page, showing operating cash flows from your defined expenses and revenue. The cash trajectory chart visualizes this data over time.
Common mistakes
- 1Relying only on the P&L without checking the cash flow statement (the P&L can be misleading about actual cash position)
- 2Not distinguishing between recurring operating cash flows and one-time financing events
- 3Ignoring the timing differences between when revenue is recognized and when cash is received
Track where your cash actually goes
RunwayCal generates your cash flow statement and trajectory chart from the financial data you define — always current, never stale.
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