Logo churn counts accounts, not dollars. It is the simpler of the two churn metrics and the one most often calculated inconsistently, usually because of what goes in the denominator. This guide covers the formula, the mid-period customer problem, and how to read logo churn against revenue churn without drawing the wrong conclusion.
What is the logo churn rate formula?
Logo churn rate equals customers lost during the period divided by customers at the start of the period, times 100.``` Logo Churn Rate = Customers Lost in Period / Customers at Start of Period x 100 ```
A company with 400 customers on January 1 that loses 12 by January 31 has a monthly logo churn rate of 3.0 percent.
The formula is trivial. The definitional work is where teams diverge:
- Customers lost means accounts that cancelled or did not renew. It does not include accounts that reduced spend. - Customers at start means the count on day one, before any new business lands. - A customer means whatever you decided a customer is, applied identically every period.
How do you handle customers acquired mid-period?
Exclude them from the denominator and start counting them the following period.A customer who signs on the 27th of the month has three days of exposure to a churn event. Putting them in the denominator alongside customers with a full month of exposure makes the rate look better without anything improving. Over a fast-growth quarter that dilution is large enough to hide a real deterioration in the rate.
Three approaches, in order of preference:
| Method | Denominator | Best for |
|---|---|---|
| Beginning count | Customers on day one only | Monthly reporting, cleanest interpretation |
| Average count | (Beginning + ending) / 2 | Annual reporting where growth is steep |
| Exposure weighted | Customer months at risk | Usage-based or short-cycle models with heavy mid-period adds |
How do you convert monthly logo churn to an annual rate?
Compound it, do not multiply by twelve.Multiplying 3.0 percent monthly churn by 12 gives 36 percent, which overstates the loss because each month churns a base that has already shrunk. The correct conversion compounds retention:
``` Annual Churn = 1 - (1 - Monthly Churn Rate)^12 ```
At 3.0 percent monthly, annual logo churn is 30.6 percent, not 36 percent. The gap widens as the monthly rate rises, so the shortcut gets less defensible exactly when churn is worst.
| Monthly logo churn | Naive x12 | Compounded annual |
|---|---|---|
| 1.0% | 12.0% | 11.4% |
| 2.0% | 24.0% | 21.5% |
| 3.0% | 36.0% | 30.6% |
| 5.0% | 60.0% | 46.0% |
What does logo churn tell you that revenue churn does not?
It isolates fit and coverage problems that dollar-weighted metrics bury.Revenue churn is dominated by your largest accounts. If the top decile of customers is stable, revenue churn can look healthy while the bottom half of the base quietly evaporates. Logo churn treats a $6,000 account and a $600,000 account identically, which is exactly what you want when the question is whether the product works for the segment you are selling into.
Read the two together:
| Logo churn | Revenue churn | Likely cause |
|---|---|---|
| High | Low | Small accounts failing. Check qualification, onboarding, and low-touch coverage. |
| Low | High | One or more large accounts contracting. Check enterprise renewals and executive sponsorship. |
| High | High | Category or product problem affecting the whole base. |
| Low | Low | Retention is working. Attention belongs on expansion and new business. |
What signals predict logo churn early enough to act?
Support engagement, and the healthy range sits in the middle rather than at zero.ORM's customer data shows accounts with zero support cases are at risk of churn, and accounts with seven or more cases in the past year are also at risk. Accounts logging three to five cases, typically tier 2 or tier 3 rather than severe, are the least likely to leave. They are using the product, asking questions, and getting answers.
That inverted-U shape breaks the standard watchlist. Sorting by ticket volume descending surfaces the loud accounts and never surfaces the silent ones, which are the harder churn to see coming and the harder one to reverse once it is visible. Build the watchlist from both tails.
The same principle governs open pipeline. The earliest warning on a deal is the absence of activity, no stage change, no close date movement, no amount change. Silence is data. Across ORM's customer base, more than 10 percent of open pipeline is stale, untouched for twelve months, and that dead weight sits in coverage ratios looking like healthy inventory.
Once you have a stable logo churn series, feed it into the retention side of the plan alongside net revenue retention, and connect both to the revenue model described in how to forecast revenue. For the new business half of the equation, sales forecasting covers how retained accounts and new logos combine into a single number.
Frequently Asked Questions
What is logo churn rate?
Logo churn rate is the percentage of customer accounts lost in a period, counted by account rather than by dollar. Each customer counts once regardless of contract size, which makes it a measure of product fit and account coverage rather than revenue risk.
How do you handle customers who joined mid-period?
Standard practice is to exclude them from the denominator and count them only from the next full period. Including a customer who signed on day 25 of a 30 day period gives them almost no opportunity to churn, which dilutes the denominator and understates the rate. If you must include mid-period adds, use an average of beginning and ending customer counts and apply the same rule every period.
Should logo churn include customers who downgrade?
No. Logo churn counts full account losses only. A customer who cuts spend by 60 percent and stays is a retained logo and a revenue churn event. Mixing the two definitions makes both numbers unusable, so track downgrades in revenue churn and keep logo churn to cancellations and non-renewals.
What counts as a churned logo in a multi-entity account?
Decide once and document it. Most B2B teams count at the contracting entity level, so three subsidiaries on separate contracts are three logos and three possible churn events. Rolling them into a single parent logo suppresses churn until the whole relationship ends, which hides the erosion that usually precedes it.
Is logo churn or revenue churn more important?
Revenue churn matters more for the financial forecast, logo churn matters more for product and segment decisions. A rising logo churn rate with flat revenue churn tells you the small end of the base is failing, which is often the earliest visible sign of a fit problem that will reach larger accounts later.
See how ORM turns these insights into action
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