Churn is the metric that separates sustainable SaaS from a leaky bucket. The math is unforgiving: at 3% monthly churn, you lose 30% of your customer base every year. At 5%, you lose nearly half. You need to acquire 50% more new customers just to stay flat.
Here's the full benchmark data — what's acceptable, what's great, and what signals a dying business.
The Churn Math Everyone Should See Once
| Monthly churn | Annual retention | Time to lose half your customers |
|---|---|---|
| 0.5% | 94.2% | 11.5 years |
| 1% | 88.7% | 5.75 years |
| 2% | 78.6% | 2.9 years |
| 3% | 69.7% | 1.9 years |
| 5% | 54.4% | 1.15 years |
| 8% | 37.8% | 7.4 months |
At 8% monthly churn, you lose more than 60% of customers per year. A company at this level isn't building — it's racing to replace what it loses.
Churn Benchmarks by Company Size
| ARR | Good monthly churn | Acceptable | Red flag |
|---|---|---|---|
| < $1M | < 3% | 3-5% | > 5% |
| $1M-$10M | < 1.5% | 1.5-2.5% | > 2.5% |
| $10M-$50M | < 0.75% | 0.75-1.25% | > 1.25% |
| $50M+ | < 0.5% | 0.5-0.75% | > 0.75% |
Early-stage companies have higher acceptable churn because you're still finding product-market fit. Enterprise-focused companies at scale should be well below 1% monthly.
Churn Benchmarks by Customer Segment
| Segment | Typical monthly churn | Notes |
|---|---|---|
| SMB (< 10 employees) | 3-7% | Highest churn — budgets change, companies close |
| Mid-market (10-500 employees) | 1-3% | Moderate — longer sales cycle, stickier |
| Enterprise (500+ employees) | 0.5-1.5% | Lowest — multi-year contracts common |
| Consumer SaaS | 5-15% | High — low switching costs |
| Vertical SaaS (niche) | 0.5-2% | Low — high switching costs |
Vertical SaaS (software built for a specific industry) consistently has the lowest churn in the market. Customers build workflows around it. Switching costs are high. Alternatives are few.
What Drives Churn at Each Stage
Early-stage (< $1M ARR): Product-market fit issues. The product doesn't solve the core problem well enough. No amount of customer success can fix fundamental product gaps.
Growth stage ($1M-$20M ARR): Onboarding failures. Customers who don't achieve a "first success moment" within 30-60 days churn at 4-5x the rate of those who do.
Scale stage ($20M+ ARR): Competitive displacement and contract consolidation. Customers rationalize vendor lists. Winning by integration (becoming part of a workflow stack) reduces this risk.
Reducing Churn: What Actually Works
1. Track time-to-value. Measure when customers first complete the "core action" that defines success in your product. Companies that reduce time-to-value by 50% typically see churn drop by 25-35%.
2. Identify leading indicators. Login frequency, feature adoption, and support ticket patterns predict churn 60-90 days before it happens. Build alerts around these signals.
3. Quarterly business reviews for top accounts. Customers who receive regular structured check-ins churn at 40% lower rates in enterprise segments.
4. Expansion revenue offsets logo churn. A customer who churns but was replaced by an expansion from another account doesn't hurt NRR. Focus on expansion as a churn hedge.
5. Annual contracts. Customers on annual contracts churn at 70-80% lower rates than monthly customers. Converting monthly to annual is the highest-leverage retention play.
Use the Churn Rate Calculator to model the revenue impact of reducing your churn rate.