What Is Logo Churn?
Logo Churn measures the percentage of customer accounts (logos) that cancel in a period — a customer-count metric that complements revenue churn to give the full picture of retention.
Key Takeaways
- Logo Churn Rate = customers lost in period / customers at start of period × 100
- Logo churn ignores account value — losing a £50k account counts the same as losing a £500 account
- Use logo churn alongside revenue churn for a complete retention picture
- High logo churn in small accounts can mask healthy retention in large accounts
What logo churn measures
Logo Churn (also called customer churn or account churn) is the percentage of customer accounts that cancel their subscription in a given period. Formula: Logo Churn Rate = customers who cancelled in the period divided by customers at the start of the period × 100. If you started the month with 200 customers and 6 cancelled, your monthly logo churn rate is 3%. Logo churn treats every account as equal regardless of size — a £500/year startup cancelling counts identically to a £50,000/year enterprise cancelling.
Logo churn vs revenue churn
Logo churn and revenue churn often diverge significantly. A SaaS business with many small customers and a few large ones might have high logo churn (many small accounts leaving) but low revenue churn (the large accounts stay). Conversely, losing a few large accounts produces high revenue churn with low logo churn. Both metrics are needed: logo churn tells you about the breadth of your customer base erosion; revenue churn tells you the financial impact. Reporting only one without the other gives an incomplete picture of retention health.
Acceptable logo churn benchmarks
Monthly logo churn benchmarks vary by customer segment. For SMB-focused SaaS (customers paying under £500/month), monthly logo churn of 2–4% is common and manageable if CAC is low. For mid-market SaaS, monthly logo churn above 2% is a concern. For enterprise SaaS with annual contracts, even 1% monthly logo churn implies significant annual attrition. Annual logo churn is often a cleaner metric for businesses with annual contracts — targeting below 10% annually for SMB and below 5% for mid-market SaaS.
Diagnosing logo churn by cohort
The most actionable logo churn analysis is cohort analysis by acquisition source, plan type, or customer segment. If customers acquired through a specific channel churn at 2× the rate of others, that channel is delivering poorly-fitted customers. If a specific plan tier has markedly higher churn, that tier may be attracting customers whose problems do not match your solution. Cohort analysis transforms logo churn from a lagging business indicator into a diagnostic tool that points to specific causes with specific fixes.