What is Churn Rate?

Churn Rate is the percentage of customers cancelling in a period (usually monthly) divided by starting customers. The "leaky bucket" metric for SaaS — if acquisition speed doesn't exceed churn speed, the business doesn't grow. Logo churn (count) vs revenue churn (dollars) reveal different problems.

// formulas

1,000 customers, 30 cancel → Logo Churn = 3%. If half were premium plan users, Revenue Churn is higher — big-customer churn is small in Logo, big in Revenue.

// gross vs net churn

• Gross Revenue Churn — only losses, ignoring expansion.
• Net Revenue Churn — Gross Churn − Expansion. If expansion > churn, you have negative net churn — best-in-class.

SaaS with negative net churn carry 2-3x investor multiples — proof the existing base self-grows.

// healthy thresholds (monthly churn)

• SMB SaaS: 3-5% normal, <2% great.
• Mid-market SaaS: 1-2% normal.
• Enterprise SaaS: 0.5-1% (6-12% annual).
• D2C subscription: 5-10% common.
• Streaming / membership: 3-7%.

// churn impact on LTV

SaaS LTV = ARPU / Monthly Churn. Small churn changes multiply LTV:

• 5% churn → 20-month average lifespan.
• 3% churn → 33 months (65% longer).
• 1% churn → 100 months (5x).

For most SaaS, reducing churn ROIs higher than reducing CAC.

// causes and interventions

1. Onboarding gap → first 30 days drive 40-60% of churn. Self-serve flow + aha-moment focus.
2. Product unused → telemetry; trigger re-engagement on activity drop.
3. Price-value mismatch → upgrade/downgrade options brake cancellation.
4. No customer success → enterprise accounts without CSM churn 2-3x more.