Churn — The Silent Killer of SaaS Growth

Churn is the percentage of customers (or revenue) that cancels in a given period. Monthly churn of 3% sounds small, but compounding: after 12 months, you've lost 30% of your customer base. After 24 months, over 50%. High churn makes growth nearly impossible because you're filling a leaky bucket — every new customer acquired is offset by customers leaving. Churn has two forms: voluntary (customer actively cancels) and involuntary (payment failure). Involuntary churn is often overlooked — in some SaaS businesses, 20–40% of churn is simply failed credit card payments. A dunning management system (Stripe has this built in, or use ProfitWell Retain) automatically retries failed payments and sends targeted emails. Fixing involuntary churn is the fastest, cheapest way to reduce overall churn. For voluntary churn, the most important question is: why did they leave? Exit surveys (a simple one-question email when someone cancels: 'What was the main reason you cancelled?') provide the most actionable data. Categories typically emerge: product didn't do what they expected, found an alternative, too expensive, no longer needed it, didn't use it enough. Each category requires a different response.

The best churn prevention happens at onboarding, not at cancellation. Users who never fully activate (never reach the aha moment) are the highest churn risk. Identify users who haven't used the product in 7 days post-signup — they're at risk. Automated email sequences ('Here's what you haven't tried yet'), in-app prompts, and proactive support reach-outs at day 7 and day 14 meaningfully improve activation and reduce early churn. For professional/institutional customers, a Customer Success model prevents churn. This means proactive outreach (not just waiting for support tickets), quarterly business reviews ('You've completed 47 assessments in the last quarter — here's how your team compares to top performers'), and awareness of your champion within the organisation leaving their role (this triggers 60–80% of churn in B2B SaaS). For accessibility apps specifically, churn often reflects seasonal patterns (OT workloads vary) or funding cycles (NDIS plan review periods). Understanding these patterns lets you adjust: offer annual pre-pay with a discount to smooth out seasonal cancellations, and time your renewal reminders to avoid NDIS plan review periods.