ACV Growth Rate
The period-over-period percentage change in total annual contract value, from opening balance to closing balance.
◆ Percentage
Formula
Built from
What it measures
The velocity at which your total annual contract value is expanding or contracting, stripped of the absolute dollar figure. It captures the net of every force on the ACV book in a period — new contracts and expansions pushing it up, downgrades and churn pulling it down — so you can see how fast the book is compounding, not just how big it is.
Why it matters
You track ACV Growth Rate because it tells you how fast the contracted value of your book is compounding, independent of its size. A $5K business and a $5M business can both grow 10% — the rate, not the dollars, tells you whether the expansion motion is healthy. A rising rate signals you're closing larger deals and expanding existing accounts; a falling or negative rate signals saturation, pricing pressure, or stalling expansion. It's the leading read on your bookings engine that feeds straight into ARR and LTV forecasts.
How to read it
Read it as a trend, not a single number. Compare this period's rate to the prior period, to your plan, and to your stage — a rate that looks healthy early-stage is alarming if it's decelerating month over month. A positive rate means inflows (new bookings plus expansion) are outrunning outflows (downgrades plus churn); flat or negative means the leaks are winning. Always decompose: split the move into new-logo ACV versus expansion ACV. A rate carried entirely by new logos while expansion is flat means you're buying growth, not earning it from the installed base — a far less durable engine.
What good looks like
Good
ACV growth that is positive and steady period over period, driven by a mix of expansion within existing accounts and larger new deals rather than a single account.
Watch
ACV growth flattening, decelerating month over month, or propped up by one large contract; new logos landing but expansion stalling.
Bad
Negative ACV growth — the book is shrinking as downgrades and churn outpace new and expansion, or larger contracts are being replaced by smaller ones.
Watch-outs
- Forgetting the base. The rate is only as meaningful as the prior-period ACV it's measured against. If last period was artificially depressed by a one-off churn, this period's rate looks inflated — always audit the composition of the denominator before celebrating.
- Mixing cohorts. New-logo ACV is usually far smaller than expansion ACV from existing accounts. Reporting a blended rate without splitting new versus expansion hides where the growth is actually coming from — and whether it's durable.
- Ignoring deal timing. A single large contract closing on the last day of the period whipsaws the rate up one month and creates a hard comp the next. Use rolling periods or normalize by deal flow to smooth calendar noise.
- Conflating with churn. Rising ACV alongside rising churn can mean you're replacing departed customers with bigger new ones, not truly expanding. Pair the rate with retention metrics to judge whether the growth is real or just churn-and-replace.
Worked example
Hypothetical
You open September with $24K total ACV across 10 contracts. In the month, two customers churn (–$4K), three new customers sign (+$9K), and two existing customers expand (+$3K combined). Closing ACV is $24K − $4K + $9K + $3K = $32K, so September's ACV Growth Rate is ($32K − $24K) ÷ $24K = 33%.