Guide

Metrics and go-to-market

Logo churn vs revenue churn

Counting lost customers and counting lost ARR diverge when account sizes differ. Always name the period.

88 of 135 · 2 min read

Logo churn counts customers lost: churned logos / starting logos. Revenue churn counts ARR lost: churned ARR / starting ARR. They diverge whenever your customer base is skewed.

Investors eventually care more about revenue retention. Support and product teams still watch logo churn, because death by a thousand SMBs is real.

The big idea

Losing 50 mice and losing one elephant can be the same ARR event or opposite ones. Headcount of customers and dollars of customers are different species.

The analogy breaks if you only watch revenue churn and ignore the mice. A thousand unhappy SMBs are a product problem, a support load, and a reputation problem, even when ARR barely moved.

Walking through it

A company with 1,000 SMB customers at $1k ACV and 10 enterprise customers at $100k ACV can lose 50 tiny logos (5% logo churn) and almost no revenue — or lose one enterprise logo (0.1% logo churn) and 10% of ARR.

Quote churn on the same period you manage the business:

  • Monthly logo churn of 3% sounds small. Compounded it is 1 − (0.97)^12 ≈ 31% annual logo churn — usually fatal for SMB SaaS.
  • Annual revenue churn of 10% means you keep 90% of starting ARR before expansion — common enterprise language.

Always annualize or label the period. Mixing "3% churn" without saying monthly or annual is how diligence conversations go sideways.

Trade-off

Monthly contracts surface churn fast and make expansion easy to instrument, but they raise voluntary churn. Annual or multi-year contracts lower logo churn and improve cash via prepay, but they hide product problems until renewal. Default: annual for ACV above roughly mid four figures; monthly for self-serve SMB with credit-card billing — then watch revenue churn weekly.

Product retention is the behavioral twin of revenue retention. Billing surprises, bad onboarding, and outages show up here before they show up in a board deck.

Common mistakes

  • Saying "3% churn" with no period. Monthly versus annual is the whole story.
  • Watching only logo churn in an enterprise-heavy book. One whale is the business.
  • Watching only revenue churn in SMB. The mice are leaving, and CAC will not save you.
  • Using contract length to hide a bad product. Renewal day is not a surprise if you watched usage.

Check yourself

3% monthly logo churn. What is the approximate annual logo churn?

About 31%: 1 − 0.97^12.

You lost 50 SMBs at $1k and kept every $100k account. Is the business healthy?

Revenue churn is tiny. Logo churn is 5%. Product and support may still be on fire.

Key takeaways

  • Logo churn counts customers. Revenue churn counts ARR. They diverge when sizes differ.
  • Always label monthly vs annual. 3% monthly is about 31% annual.
  • Revenue retention is what compounds enterprise value. Logo churn still matters for SMB and support load.
  • Contract length changes when you see the leak. It does not fix the leak.

Further learning

SaaS Metrics 2.0 (David Skok)“If you cannot measure it, you cannot improve it” – Lord Kelvin This article is a comprehensive and detailed look at the key metrics that are needed to understand and optimize a SaaS business. It is a completely updat…For Entrepreneurs

Next: GRR and NRR.

SaaS metrics: ARR, churn and net retention

ARR and the bridge, bookings vs revenue, logo vs revenue churn, GRR, NRR, and the quick ratio.

GRR and NRR

Gross retention ignores expansion and is capped at 100%. Net retention includes expansion and can exceed 100%.

Retention and engagement

Retention curves, cohort analysis, DAU/MAU and why retention is the foundation of growth. Start here for the map.