Negative churn means your existing customer base generates more revenue over time than you lose to cancellations and contract shrinkage — the base grows even without new sales.

How it works

Start with $1M ARR from last year’s cohort. This year $80K churns off, but expansion adds $150K from upsells and seat growth. Net change: +$70K on the cohort — negative churn in dollar terms. Expressed as net revenue retention (NRR), that cohort might show 107% if measured on the same customer set.

Negative churn is most common in B2B software with usage-based pricing, land-and-expand sales motions, or multi-product suites. Consumer subscriptions rarely achieve it at scale because expansion per user is limited.

The metric is usually calculated on a trailing twelve-month basis for a defined cohort — often all customers as of twelve months ago — not mixing new logos into the retention math.

Why it matters

• Founders: Product and customer success teams should map expansion paths deliberately — pricing tiers, integrations, and account management — rather than hoping upsells happen accidentally.
• Investors: NRR above 100% signals that CAC payback improves over time as the base compounds. Due diligence checks whether expansion is concentrated in a few whale accounts or broad-based.

Common mistake

Claiming negative churn while including new customer revenue in the retention calculation. NRR and negative churn apply to existing accounts, not net-new logos.

Related ideas

See also net revenue retention (NRR), logo churn, expansion revenue, and land and expand.