What Is Net Revenue Retention (NRR)?
How to Tell If Your Customer Base Is Growing or Shrinking in Value
How to Calculate NRR
Start with the monthly recurring revenue (MRR) from a group of customers at the start of the period. Add expansion, then subtract contraction and cancellations from that same group, and divide by where you started. Revenue from customers won during the period is excluded, so the measurement follows one cohort forward.
For example, a cohort worth $100,000 MRR that adds $12,000 in upgrades, loses $4,000 to downgrades and $5,000 to cancellations ends at $103,000, giving 103,000 ÷ 100,000 × 100 = 103% NRR, which stated as churn is net revenue churn of −3%.
NRR Benchmarks and What Good Looks Like
Across public software companies reporting the metric the median is 109% (Meritech SaaS Comps, 2026), well below the 120% bar that circulates as the standard, and the individual filings behind it line up with the lower number: Snowflake at 126%, MongoDB 121%, Cloudflare 120% and CrowdStrike 115%, each from its own 10-K or 10-Q.
Private companies sit lower still, at 102% for private B2B SaaS (Benchmarkit SaaS and AI-Native Metrics, 2026). Check the definition behind any of these before comparing yourself to them, because companies vary the cohort, the measurement window and the denominator, so two NRR figures are rarely measuring the same quantity.
Why Investors and Boards Focus on NRR
NRR is the closest thing to a single number describing whether a business compounds. Once NRR passes the break-even point, an existing customer base grows without any new sales at all, which means growth doesn't depend entirely on the acquisition engine continuing to work.
It also speaks to efficiency. Revenue from an existing customer costs far less to win than revenue from a new one, so a company with high NRR can grow at the same rate on less sales and marketing spend. That's why it appears in nearly every diligence pack alongside the growth rate, and why a board will usually ask about it before asking about new logos.
How to Improve NRR
NRR has two levers and they aren't equally accessible. Reducing churn and contraction protects what you already have, while expansion adds to it, and most businesses find expansion the faster of the two because it works on customers who have already chosen them.
In practice that usually means two things. The first is pricing that grows with usage or seats, so a customer's bill rises as they get more value without anyone having to renegotiate. The second is account monitoring that flags customers approaching a plan limit before they hit it. Expansion built on a weak base is fragile, though. An NRR carried by a handful of growing accounts can hide ordinary churn underneath it, so it's worth reading NRR next to gross retention rather than on its own.
Improve Your NRR
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