Cash timing, not booked revenue
Cash flow forecasting projects when money actually enters and leaves the business, which differs from when revenue is booked or recognized. A signed contract creates bookings immediately, recognizes revenue over the term, and collects cash on its own schedule, which might be upfront, quarterly, or net-60. Those three timings rarely align. Cash flow forecasting models the collection side specifically, so the business knows its real liquidity rather than assuming bookings equal cash in the bank.Why revenue and cash diverge
The gap between revenue and cash comes from a few structural sources:
- Billing terms: annual deals billed upfront collect cash ahead of recognized revenue, creating deferred revenue. - Payment terms: net-30 or net-60 delays collection well past the booking. - Billings versus revenue: what is invoiced in a period differs from what is recognized, and both differ from what is collected.
This is the same divergence captured in booked ARR versus billed ARR, extended to actual cash receipt. A revenue forecast cannot answer the liquidity question because it is measuring a different thing.
Runway depends on cash, not bookings
For a growing company investing ahead of collected cash, this distinction is existential. A business can post strong bookings growth and still hit a cash crunch if collections lag the spending funding that growth. Cash flow forecasting surfaces the runway and the timing squeezes a revenue forecast hides, which is why finance runs it alongside, not instead of, the sales forecast. Booking a deal does not pay salaries or vendors; collecting its cash does. A company that forecasts only revenue can be blindsided by a liquidity gap it was growing straight into, which is exactly the failure cash flow forecasting exists to prevent.
Frequently Asked Questions
What is cash flow forecasting?
It projects when cash actually enters and leaves the business, as opposed to when revenue is booked or recognized. Because customers pay on terms and annual contracts are often billed upfront or in installments, the timing of cash differs from the timing of revenue. Cash flow forecasting models that timing so the business knows its actual liquidity, not merely its bookings.
How is cash flow forecasting different from revenue forecasting?
Revenue forecasting projects bookings or recognized revenue; cash flow forecasting projects collected cash. A signed annual deal books revenue and may recognize it over twelve months, but the cash might arrive upfront, quarterly, or net-60. The two diverge because of billing terms, payment timing, and deferred revenue, which is why finance runs both.
Why does cash flow forecasting matter for a growing company?
Because a company can be growing bookings and still run short on cash if collections lag spending. Cash flow forecasting reveals the runway and the timing crunches that a revenue forecast hides, which is critical for a business investing ahead of collected cash. Booking growth does not pay salaries; collected cash does.
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