Gross revenue retention (GRR) measures the recurring revenue you keep from existing customers over a period, counting only losses (downgrades and cancellations) and ignoring any expansion. Because it can only go down, GRR is capped at 100% and tells you how leaky the bucket is before you pour anything new in.
GRR versus NRR
GRR and net revenue retention answer different questions. NRR asks "did the base grow?" GRR asks "how much did we hold onto?" If a cohort starts at $1.0M and loses $100K to churn and downgrades, GRR is 90%, regardless of how much that cohort expanded. The gap between GRR and NRR is exactly the expansion you booked.
Strong SaaS businesses target GRR in the 90% range and above. A low GRR is a structural warning: it means the product or the customer experience is not sticking, and no amount of upsell hides it forever. GRR is the metric customer success teams own most directly, because it is the pure measure of churn avoided.
- GRR isolates churn and contraction, so it is the cleanest read on retention quality.
- It pairs naturally with renewal rate, which measures the same idea against the cohort up for renewal.
- Improving GRR starts upstream, with onboarding, adoption, and early detection of every at-risk account.