Bookings, Billings and Revenue

Three moments in one contract

A signature, an invoice and a month of service delivered are three separate events, and each has its own measure. Bookings happen at signature and capture the whole commitment. Billings happen when you invoice and capture what the customer has been asked to pay so far. Revenue happens as the service is delivered and captures what you have actually earned. Cash sits alongside billings and moves whenever the customer pays.

None of these is more honest than the others. The failure is only ever in the labelling, and it is common enough to be worth stating plainly: the number a company chooses to call "revenue" in a press release is frequently bookings.

Which one is which, and who cares

• Bookings — the sales measure. It reflects demand and closing performance the moment they happen, which is why sales compensation runs on it. It says nothing about delivery, and it includes revenue that will not be earned for two more years.
• Billings — the cash-timing measure. Revenue plus the change in deferred revenue, and the best short-term proxy for cash coming in. Lumpy for annual-contract businesses, because a renewal cluster moves it hard.
• Revenue — the accounting measure, governed by ASC 606 or IFRS 15, recognised as the service is delivered. The only figure an auditor will attest to and the only one comparable across companies.

Where MRR and ARR sit

MRR is closest to revenue in shape — both are earned over time and both normalise an annual contract to one twelfth per month — but it is a run rate rather than an accounting figure and excludes one-off and services revenue that recognised revenue includes. In the worked example, January revenue and January MRR contribution happen to agree at $1,000, and they diverge as soon as the $3,000 implementation fee begins to be recognised.

ACV is the annualised slice of the bookings figure: $12,000 of a $27,000 booking. Total contract value is the bookings figure minus nothing at all. Keeping the family straight is largely a matter of asking, for any number quoted, at which of the three moments it was measured.

Deferred revenue is the bridge

The gap between billings and revenue is deferred revenue — money invoiced for service not yet delivered, and a liability on the balance sheet rather than an asset. A business with heavy annual prepayment carries a large deferred balance, which is both a healthy sign of commitment and a real obligation. It also makes billings a poor growth measure on its own: a quarter with an unusual renewal cluster shows billings growth that reverses the following quarter with no change in the underlying business.

Why the distinction is worth enforcing internally

These three numbers push in different directions, and the ambiguity is exploitable — usually not maliciously, but by whichever function has the most flattering measure. Sales reports bookings, finance reports revenue, the board hears one word. The remedy is unglamorous: name the measure every time it appears, keep bookings out of any chart labelled revenue, and reconcile the three at least quarterly. A business that cannot bridge bookings to billings to revenue does not know which of its numbers moved.