Bookings, billings, revenue: stop conflating them.
Bookings, billings, and revenue measure the same deal at three different moments. Treating them as one number is how forecasts go wrong.
Three of the most important numbers in a subscription business are routinely used as if they were interchangeable. Bookings, billings, and revenue describe the same contract at three different points in its life, and conflating them produces forecasts that don't reconcile and board conversations that talk past each other. The fix isn't more sophistication. It's a shared definition everyone agrees to.
Three moments, not three opinions
Each number answers a different question, and each is owned by a different part of the business:
- Bookings — the total value a customer committed to when they signed. Sales owns it. It's a promise, recognized the moment the contract is signed.
- Billings — what you've actually invoiced so far. Finance owns it. It follows the invoicing schedule, which may be monthly, annual, or milestone-based.
- Revenue — what you've earned by delivering the service over time. Accounting owns it. It's recognized ratably as the obligation is fulfilled.
A single annual deal can be a large booking today, a single billing this month, and a small slice of recognized revenue this period, all from the same signature.
Why conflating them breaks the forecast
When a team reports bookings as if they were revenue, growth looks lumpy and front-loaded. When it reports billings as revenue, seasonality in invoicing masquerades as business performance. The numbers are all correct; they're just answering different questions, and mixing them produces a story that falls apart the first time someone reconciles it.
Bookings is what you sold. Billings is what you invoiced. Revenue is what you earned. The discipline is never using one word to mean another.
A definition the whole company can read
The goal is one definition, written down, that finance, sales, and the board all use the same way, plus the ability to move between the three on demand. When the same underlying contracts drive all three views, the bridge between them stops being a debate and becomes a report.
Alain spent a decade building and scaling subscription businesses before founding Revvly. He writes about the infrastructure gap between what SaaS companies report and what they actually earn.