C4 · Economics & metrics · identity

Net Revenue Retention

Also: NRR

Definition. NRR is ending recurring revenue from a fixed starting customer cohort divided by that cohort’s starting recurring revenue. It includes expansion and gross losses and excludes new logos. State the period, currency, recurring-revenue policy and treatment of reactivation. Above 100% describes growth of that cohort during that window, not a guaranteed future trajectory.

established Last updated 2026-06-18 Source: Historical benchmark ranges below are illustrative, not verified current sector medians or predictions. Use the same cohort, window, pricing/usage policy and currency basis.

Formula

Net Revenue Retention identity

N R R_{[a, b]} = \frac{R _{ending, starting cohort}}{R _{beginning, starting cohort}}

Plain English: NRR = (Beginning ARR + Expansion - Contraction - Churn) / Beginning ARR

Notation: NRR_[a,b] = ending recurring revenue of the starting cohort / beginning recurring revenue of that cohort

Benchmark by stage

Source: Historical benchmark ranges below are illustrative, not verified current sector medians or predictions. Use the same cohort, window, pricing/usage policy and currency basis.

Stage	Net Revenue Retention	Notes
SMB-focused SaaS	85–100%	Illustrative historical range; segment, cohort age, usage, price, period and cost to expand affect interpretation.
Mid-market SaaS	100–115%	Illustrative historical range; segment, cohort age, usage, price, period and cost to expand affect interpretation.
Enterprise SaaS	110–130%	Illustrative historical range; segment, cohort age, usage, price, period and cost to expand affect interpretation.
Usage-based / infrastructure	120–160%+	Illustrative historical range; segment, cohort age, usage, price, period and cost to expand affect interpretation.
Concerning (any segment)	< 85%	Illustrative historical range; segment, cohort age, usage, price, period and cost to expand affect interpretation.

Naive vs corrected

Version	Formula
Naive	Total ending ARR / Total beginning ARR (includes new logo ARR in numerator — overstates retention by conflating acquisition with expansion)
Corrected	NRR must use a fixed cohort: measure only customers who existed at the beginning of the period. New logos acquired during the period are excluded from both numerator and denominator.

Common errors

Including new-logo revenue in the ending cohort
Combining monthly flow amounts with an annual beginning balance
Taking an annual root as evidence of a constant monthly path
Treating expansion as costless or as proof of customer survival
Mixing segments, currencies or reactivation policies without disclosure

Where this sits

Part of the Economics & metrics (C4) cluster in the GTM World Model. Related to the model's "For one fixed cohort and window: cohort_R_end=cohort_R_start×NRR. Repeated 1.20 annual NRR is a hypothetical scenario that doubles revenue in ln(2)/ln(1.20)≈3.8 years; a single observed annual value does not establish that persistence." equation.

grr →mrr →arr →ltv →

How to cite this

@misc{shalvi_gtm_metric_nrr_2026,
  author = {Singh, Shalvi},
  title  = {Net Revenue Retention — GTM World Model Metrics},
  year   = {2026},
  url    = {https://shalvisingh.com/gtm/metrics/nrr}
}

Singh, Shalvi. "Net Revenue Retention — GTM World Model Metrics." shalvisingh.com, 2026. https://shalvisingh.com/gtm/metrics/nrr