Churn Rate
Churn rate is the percentage of subscribers (logo churn) or revenue (revenue churn) lost in a given period, typically monthly. It is the inverse of retention and the single most important indicator of a subscription business’s health below the surface of growth metrics.
Two types of churn
Logo churn (subscriber churn): the percentage of subscribers who cancelled in a period.
Formula: Logo Churn Rate = Churned Subscribers / Starting Subscribers x 100
Example: 1,000 subscribers at start of month, 30 cancel = 3% monthly logo churn.
Revenue churn (MRR churn): the percentage of MRR lost in a period from cancellations and downgrades.
Formula: Revenue Churn Rate = (Churned MRR + Contraction MRR) / Starting MRR x 100
Revenue churn is more meaningful than logo churn because it weights high-value customers appropriately. A 5% logo churn on your lowest-tier plan is less damaging than 1% logo churn on your enterprise tier.
Voluntary vs involuntary churn
Voluntary churn: subscribers who actively choose to cancel. Caused by poor product fit, pricing objections, competitive switching, or end of use case.
Involuntary churn: subscribers lost to payment failure — declined cards, expired cards, insufficient funds, SCA friction. Typically 1–4% of MRR per month for SaaS companies without smart dunning. Recoverable with proper dunning management.
The most actionable short-term lever on churn is involuntary churn reduction through dunning improvement. A 10-percentage-point improvement in failed-payment recovery rate on a $2M ARR SaaS with 3% monthly involuntary churn = $72,000/year recovered.
Churn benchmarks
| SaaS stage | Acceptable monthly churn | Danger threshold |
|---|---|---|
| Early (less than $1M ARR) | 5–8% | Over 10% |
| Growth ($1M–$10M ARR) | 2–5% | Over 7% |
| Scale ($10M+ ARR) | 0.5–2% | Over 4% |
High logo churn at growth stage typically signals product-market fit problems that no billing platform can solve. Involuntary churn at any stage is a billing configuration problem — fixable.
Negative churn (the goal)
Net Revenue Retention (NRR) measures churn net of expansion (upgrades, seat additions, usage increases). If your NRR exceeds 100%, your existing cohort is growing — even if some subscribers are churning, the ones who stay are spending more.
NRR over 120% is considered excellent for SaaS. Stripe, Datadog, and Snowflake have historically reported NRR of 130–150%. At NRR of 120%+, you can grow revenue even with a 0% new-subscriber growth rate.
Why it matters in billing platforms
Billing platforms affect churn through:
- Dunning quality: better recovery of failed payments = lower involuntary churn
- Customer portal UX: pause-without-cancel flows reduce voluntary churn from “I need a break” segment
- Upgrade flows: frictionless plan changes reduce contraction churn
Chargebee and Recurly both measure churn as a first-class dashboard metric. The difference: Recurly’s customer portal features (pause, swap) directly reduce voluntary churn. Chargebee’s dunning engine better addresses involuntary churn.