Dormancy Rate

What is Dormancy Rate?

Dormancy Rate is the percentage of customers who have stopped engaging with your product during a given period. It signals how many active customers are quietly drifting toward churn.

Why Dormancy Rate matters

A dormant customer is not a retained customer. They have not left yet, but they are no longer getting value from your product, which makes them far more likely to cancel.

Tracking Dormancy Rate gives you a window to act before that happens. Instead of waiting for a cancellation to confirm the loss, you can identify disengaged customers early and reach out with a targeted reactivation campaign.

For marketing and support leaders, this metric connects directly to revenue. Reactivating a dormant customer almost always costs less than acquiring a new one. A rising Dormancy Rate is a prompt to investigate: has something changed in your product, your onboarding, or your customer mix?

Dormancy Rate formula

Dormancy Rate = (Number of dormant customers during a given period / Total number of active customers at the beginning of the period) x 100

A customer is typically classified as dormant when they have not logged in, made a purchase, or performed a meaningful action within a defined window. That window varies by business model: a SaaS product might define dormancy as 30 days of inactivity, while a retail brand might use 90 days.

Example

If you had 500 active customers at the start of the month and 35 showed no activity during that month:

Dormancy Rate = (35 / 500) x 100 = 7%

A 7% Dormancy Rate means 1 in 14 active customers went quiet that month. Tracked over time, even a small upward trend is worth investigating before it compounds.

How to use Dormancy Rate

Calculating the number is the first step. The value comes from what you do with it.

• Segment dormant customers by cohort, plan type, or acquisition channel to find patterns. If dormancy is concentrated in one segment, the cause is likely specific and addressable.

• Trigger reactivation workflows automatically when a customer crosses your dormancy threshold. A well-timed email or check-in call lands better than a generic win-back campaign months later.

• Review onboarding and activation if Dormancy Rate is high among newer customers. Early disengagement often points to a gap between what customers expected and what they experienced.

• Track it alongside Churn Rate to understand the full picture. Dormancy Rate tells you who is at risk; Churn Rate tells you who is already gone.

Reporting frequency

Monthly

KPI target example

7% dormant

Audience

Marketing Manager, Support Manager

Variations

Rate of Dormancy