Churn Rate
Churn rate is the percentage of customers or revenue a business loses within a defined period, typically measured annually in B2B. The 2026 benchmark for B2B SaaS gross revenue churn is 10–14%, with <7% considered healthy and >20% indicating critical product-market fit or customer success issues. High churn neutralizes acquisition efficiency by constantly draining recurring revenue.
Logo Churn vs. Revenue Churn
Logo Churn Rate counts the number of customers lost, regardless of their contract value.
Logo Churn = (Customers Lost in Period ÷ Customers at Start of Period) × 100
Revenue Churn Rate (also called MRR Churn) counts the revenue lost from cancellations and downgrades, making it more meaningful for businesses with varied contract sizes.
Revenue Churn = (MRR Lost to Cancellations + Downgrades ÷ Starting MRR) × 100
A business losing 5 customers each worth $100/month has the same logo churn as a business losing 5 customers each worth $10,000/month — but radically different revenue impact. Revenue churn is the more operationally significant metric for mid-market B2B.
The Compounding Destruction of High Churn
A 15% annual churn rate sounds manageable in isolation. But its effect on LTV is non-linear:
- 5% annual churn: Average customer lifespan = 20 years (capped at 5 in most LTV models)
- 10% annual churn: Average lifespan = 10 years
- 20% annual churn: Average lifespan = 5 years
- 30% annual churn: Average lifespan = 3.3 years
For a customer paying $500/month, the difference between 5% and 20% annual churn is the difference between $60,000 LTV and $18,000 LTV — a 70% reduction in the value of every customer you acquire. No amount of acquisition efficiency can compensate for this.
Gross Revenue Retention (GRR) vs. Net Revenue Retention (NRR)
Gross Revenue Retention (GRR) captures the revenue retained from existing customers before counting expansions. It shows the base health of the business. GRR can never exceed 100%.
Net Revenue Retention (NRR) captures the same base plus expansion MRR from upsells and cross-sells. An NRR above 100% means your existing customer base is growing even without new logo acquisition. This is the hallmark of elite B2B SaaS.
The relationship: NRR = GRR + Expansion MRR Rate. If your GRR is 85% and expansion adds 20%, your NRR is 105%.
Early Warning Signals Before Churn
Most churn in B2B SaaS is predictable 60–90 days before the cancellation event. Leading indicators include:
- Declining product engagement (login frequency, feature utilization)
- Missed QBRs or executive sponsor departure
- Support ticket escalations in the 90 days before renewal
- Competitor pricing inquiries on G2 or review sites
Customer Success teams using health-scoring platforms (Custify, Gainsight) can intercept at-risk accounts before they reach cancellation intent.
2026 Benchmarks
| Performance Level | Annual Logo Churn | Annual Revenue Churn |
|---|---|---|
| Elite | <5% | <3% |
| Healthy | 5–10% | 5–7% |
| At Risk | 10–20% | 8–15% |
| Crisis | >20% | >15% |
[!IMPORTANT] Every percentage point of churn you eliminate extends your revenue tail disproportionately.
Related Calculators
- — Model exactly how reducing annual churn by 5% or 10% changes your customer LTV and LTV:CAC ratio.
- — Churned MRR is one of the four inputs. See whether your churn is erasing your new MRR gains.