Net Revenue Retention (NRR) Explained
Net revenue retention (NRR) is the percentage of revenue a company keeps from its existing customers over a given period, after accounting for both expansion (upgrades, add-ons, more usage) and contraction (downgrades and churn) — but before counting any revenue from new customers. An NRR above 100% means existing customers, as a group, are generating more revenue over time even without any new customer acquisition.
Quick facts
- NRR formula: (Starting revenue + expansion revenue − downgrades − churned revenue) ÷ starting revenue, expressed as a percentage.
- NRR above 100% means expansion revenue outweighs churn and downgrades combined.
- Strong SaaS companies often target 100-120%+ NRR; anything meaningfully below 100% signals existing customers are shrinking as a group.
- Connects directly to What Is Expansion Revenue and How to Drive It.
How to calculate NRR
| Step | Example values |
|---|---|
| Starting monthly recurring revenue (MRR) from existing customers | $100,000 |
| + Expansion revenue (upgrades, add-ons, usage growth) | +$15,000 |
| − Downgrade revenue (customers moving to lower plans) | −$5,000 |
| − Churned revenue (customers who canceled) | −$10,000 |
| = Ending revenue from the same customer cohort | $100,000 |
| NRR | 100% |
In this example, expansion revenue exactly offset downgrades and churn, resulting in a flat 100% NRR — the existing customer base neither grew nor shrank in aggregate.
Why NRR matters so much
NRR is one of the clearest signals of a SaaS business's underlying health, because it isolates how well a company retains and grows revenue from customers it already has, separate from new customer acquisition. A company can show strong overall revenue growth while masking a serious retention problem if new customer acquisition is covering for existing customers churning or downgrading — NRR makes this visible, since it excludes new customers entirely.
What a good NRR looks like
There's no single universal target, but general benchmarks are widely used: NRR above 100% is generally considered healthy, since it means the existing customer base is growing in value even without new sales. Top-performing SaaS companies, especially those with strong product-led growth motions and natural usage-based expansion, often reach 120% or higher. NRR meaningfully below 100% signals that churn and downgrades are outweighing expansion, which is worth investigating even if total company revenue is still growing from new customers.
Common mistakes when using NRR
- Confusing NRR with gross revenue retention. Gross revenue retention excludes expansion entirely, measuring only how much revenue is retained before any upgrades — the two metrics answer different questions and shouldn't be used interchangeably.
- Looking only at overall NRR without segmenting by customer cohort or size. A blended NRR number can hide very different retention patterns between, say, small customers and large enterprise accounts.
- Treating a single quarter's NRR as the full picture. NRR can be noisy over short periods, especially for companies with fewer, larger customer contracts — trends over several quarters are more reliable.
- Chasing a high NRR through aggressive upselling that doesn't reflect genuine customer value, which risks damaging retention and expansion further down the line.
FAQ
What's the difference between NRR and gross revenue retention? Gross revenue retention only accounts for downgrades and churn, capped at 100% (it never includes expansion); NRR includes expansion revenue, which is why NRR can exceed 100% while gross revenue retention never can.
What's considered a bad NRR? Generally, NRR meaningfully below 100% (some benchmarks flag below 90%) signals a retention problem worth addressing, though acceptable ranges vary by industry, customer segment, and company stage.
How often should NRR be measured? Most SaaS companies calculate it monthly or quarterly, though trends over multiple quarters are more meaningful than any single period's number, especially for companies with a smaller number of larger customers.
Does NRR include revenue from new customers? No — NRR specifically excludes new customer revenue, measuring only the change in revenue from the cohort of customers that existed at the start of the measurement period.