Logo Churn Rate
Customer GrowthLogo churn rate is the percentage of customers who fully cancel in a period. "Logo" because each company is one logo on the customer-roster slide, regardless of how much they pay. It is one of two churn perspectives: logo churn counts customers; revenue churn counts dollars.
The two diverge whenever customer size correlates with churn likelihood. In most B2B SaaS, small customers churn faster than large ones, so revenue churn is lower than logo churn. Reporting only one paints an incomplete picture. Both belong on the operating dashboard.
Contents
Key takeaways
- Logo Churn = (Customers Lost in Period ÷ Customers at Start of Period) × 100. Each customer counted once, regardless of contract size.
- Logo churn vs revenue churn diverges sharply when small customers churn faster than large ones. A 10% logo churn rate can pair with 3% revenue churn if the lost customers were small.
- Healthy enterprise SaaS keeps annual logo churn under 7%. SMB SaaS often runs 15 to 25% annual logo churn even when the business is fundamentally healthy.
What is logo churn rate?
Logo churn rate counts customers, not dollars. A SaaS company that loses 5 customers out of 100 in a month has a 5% monthly logo churn rate, whether those 5 customers paid 100 EUR per month each or 100,000 EUR per month each. It is the customer-relationship perspective on churn.
It matters separately from revenue churn because customer count predicts long-term commercial leverage in ways revenue churn does not. A company with stable revenue but rising logo churn is replacing many small customers with a few large ones, which can mask brittleness in the customer base.
How do you calculate logo churn rate?
The formula:
Logo Churn Rate = (Customers Lost in Period ÷ Customers at Start of Period) × 100
Worked example: A SaaS company starts a quarter with 400 customers and ends with 380. 25 customers cancelled and 5 new ones signed up in the period. Logo Churn Rate = (25 ÷ 400) × 100 = 6.25% for the quarter.
A few rules:
- Use the customers-at-start-of-period in the denominator, not the average count, to keep the calculation interpretable.
- Annualize by multiplying monthly churn by 12 (or compounding for precision: 1 − (1 − monthly rate)^12).
- Track logo churn separately by segment. Enterprise logo churn and SMB logo churn behave very differently and combining them obscures both.
Logo churn vs revenue churn
Both metrics matter, but they answer different questions:
- Logo churn: how many customer relationships did we lose? Best for tracking commercial breadth and customer-success workload.
- Revenue churn: how much recurring revenue did we lose? Best for forecasting and unit-economics decisions.
A SaaS company with 10% annual logo churn and 4% annual revenue churn has good revenue retention but a leaky base of small accounts. A company with 5% annual logo churn and 8% annual revenue churn has a few big accounts at risk and should expect revenue volatility.
The gap between them is sometimes called the "size mix." A widening gap (revenue churn growing slower than logo churn, or vice versa) usually signals a shift in segment health worth investigating.
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Frequently asked questions
Why is logo churn often higher than revenue churn?
Because in most B2B SaaS, smaller customers churn at higher rates than larger ones. Losing many small customers and few large ones produces high logo churn but low revenue churn. The opposite pattern (big customers churning fast) is rarer but more dangerous.
What's a healthy annual logo churn rate?
Enterprise SaaS: under 7%. Mid-market: under 12%. SMB: 15 to 25% is common and not necessarily a problem if the SMB economics support that level of churn (short payback, high expansion). Below those bands is exceptional; above is a structural issue worth investigating.
Should I count downgrades as logo churn?
No. Logo churn counts only full cancellations (customers leaving entirely). Downgrades belong in contraction MRR, which feeds revenue churn but not logo churn. A customer that downgrades from 5,000 EUR/month to 1,000 EUR/month is still a logo on the books.