Churn is the rate at which customers cancel their subscriptions. It's the silent killer of SaaS businesses — even small monthly churn compounds into catastrophic annual losses. Gross revenue churn measures revenue lost from cancellations. Net revenue churn (or NRR) accounts for expansion from remaining customers. A business can have positive NRR even with some customer churn if expansions are strong enough.
For example, a 3% monthly logo churn sounds manageable but means you're replacing 36% of your customer base every year — an enormous burden on your acquisition engine that makes growth much harder.
We pay close attention to churn signals in our client audits — high churn often points to a product-market fit issue that marketing can't fix alone.
Related Terms
Relevant Cactus Services
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Book a free strategy call →Ideal Customer Profile (ICP)
Your ICP is the precise description of the company most likely to buy, stay, and expand.
Sales Development Representative (SDR)
An SDR is the outbound hunter on your sales team — their job is to generate qualified meetings, not close deals.
Business Development Representative (BDR)
A BDR is similar to an SDR but often focuses on larger, more strategic accounts or outbound into new markets rather than a defined territory.
Total Addressable Market (TAM)
TAM is the total revenue opportunity if you captured 100% of your target market.
Serviceable Addressable Market (SAM)
SAM is the portion of TAM you can actually reach with your current GTM motion.
Serviceable Obtainable Market (SOM)
SOM is the slice of SAM you can realistically capture in the next 12–24 months given your resources, competition, and execution capacity.