Gross churn vs net churn
Gross and net churn are mirror images of gross and net revenue retention. Gross churn is the pure loss; net churn nets expansion against it. The gap between them is the size of your expansion engine.
Net churn going negative is the holy grail: it means your existing base grows even with no new customers, the churn-side view of net revenue retention above 100 percent.
Short answer
Gross revenue churn counts only the recurring revenue you lose to cancellations and downgrades. Net revenue churn subtracts expansion from that loss, so it can be negative when expansion outpaces churn. Gross churn shows the raw leak; net churn shows the leak after upsell fills part of it back in.
Key takeaways
- Gross churn: revenue lost to cancellation and downgrade only.
- Net churn: gross churn minus expansion revenue.
- Net churn can be negative; gross churn cannot.
- Negative net churn equals NRR above 100 percent.
Reading the two together
Gross churn tells you how leaky the bucket is; net churn tells you whether expansion is filling it faster than it leaks. A business with 15 percent gross churn but negative 5 percent net churn is losing customers yet growing revenue from its base through expansion.
Relying on net churn alone can mask a real retention problem, just as relying on NRR alone can. Always look at gross churn beside it to see the underlying leak.
How Ardovo handles it
Ardovo reports gross and net churn side by side from live billing, so expansion never hides a growing leak. Rook flags when gross churn is climbing even as net churn stays healthy, catching the problem before expansion can no longer cover it.
Frequently asked questions
What is the difference between gross churn and net churn?
Gross churn counts only revenue lost to cancellations and downgrades. Net churn subtracts expansion from that loss, so it can be negative when expansion beats churn. Gross shows the raw leak; net shows it after upsell.
Can net churn be negative?
Yes. When expansion from existing customers exceeds the revenue lost to cancellations and downgrades, net churn is negative, meaning the base grows on its own. That is equivalent to net revenue retention above 100 percent.
Why look at gross churn if net churn is negative?
Because net churn can mask a large underlying leak that expansion is temporarily covering. High gross churn with negative net churn is fragile: if expansion slows, the real churn surfaces. Watch both.