What Is Net Revenue Retention (NRR)?
Net Revenue Retention, also called net dollar retention (NDR), tracks a cohort of customers that existed twelve months ago and asks how much recurring revenue that same group generates today. It captures every movement within the base — accounts that expanded seats or usage, accounts that downgraded, and accounts that cancelled entirely — while ignoring revenue from customers signed during the period.
The reading is intuitive. An NRR of 115% means the existing customer base is worth 15% more than a year ago even with zero new sales. An NRR of 90% means the company is filling a leaky bucket, because it must sign substantial new business each year just to keep revenue flat.
How to Calculate NRR
The formula is NRR = (starting ARR of the cohort + expansion − contraction − churned ARR) ÷ starting ARR of the cohort. If a cohort begins the year at $100 million of ARR, adds $20 million of expansion, gives back $5 million in downgrades, and loses $8 million to cancellations, ending cohort ARR is $107 million and NRR is 107%.
Benchmarks vary by customer type. Public enterprise SaaS companies have historically clustered around a median of roughly 110%, with best-in-class names posting 120% to 130% — Snowflake famously reported figures above 150% around its 2020 IPO. Businesses selling to small companies typically land lower, often between 90% and 100%, because smaller customers fail or switch more frequently.
Why NRR Matters to Investors
High NRR is compounding built into the business model. At 120% NRR, a customer cohort roughly doubles its revenue contribution in under four years without a single new logo, which lowers the cost of growth dramatically. Empirically, software companies with higher NRR command meaningfully richer revenue multiples because their growth is more predictable and less dependent on sales spending.
For candidates targeting software investment banking or growth equity, NRR is a standard diligence and interview topic. Expect to explain how it differs from gross retention, which caps at 100% because it ignores expansion, and why a company with 130% NRR and modest new bookings can outgrow a rival with flashier logo acquisition.
